{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 1.6629586219787598,
      "total_seconds": 1.9331035614013672,
      "stats": {
        "pings_per_sec": 601.3430455000463
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:04 remove worker.pid",
        "2022/02/02 21:41:04 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 7.757985353469849,
      "total_seconds": 8.016741275787354,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 189,
        "Create()/acquire-cgroup.cnt": 10,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 10,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 10,
        "Create()/fresh-proc.ms-avg": 179,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 9,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 9,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 5,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1932,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 49,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1111,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1932
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:12 remove worker.pid",
        "2022/02/02 21:41:12 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 6.691009283065796,
      "total_seconds": 6.9558265209198,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 116,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 11,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 161,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 10,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 5,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 1,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1665,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 53,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 1,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 11,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1025,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1665
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:19 remove worker.pid",
        "2022/02/02 21:41:19 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "docker",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 12.993462562561035,
      "total_seconds": 13.822980880737305,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 658,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 162,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3235,
        "Pause().cnt": 4,
        "Pause().ms-avg": 37,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1658,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3235
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:32 Kill function: install",
        "2022/02/02 21:41:32 Destroy() [SB 6]",
        "2022/02/02 21:41:32 Kill function: install2",
        "2022/02/02 21:41:32 Destroy() [SB 7]",
        "2022/02/02 21:41:32 Kill function: install3",
        "2022/02/02 21:41:32 Destroy() [SB 9]",
        "2022/02/02 21:41:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:33 remove worker.pid",
        "2022/02/02 21:41:33 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 0.22883009910583496,
      "total_seconds": 0.4758422374725342,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 95,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 156,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 13,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 7,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 6,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 225,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 24,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 225
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:33 remove worker.pid",
        "2022/02/02 21:41:33 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 0.9817516803741455,
      "total_seconds": 1.2322032451629639,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 12,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 153,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 13,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 7,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 6,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 978,
        "Pause().cnt": 2,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 777,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 12,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 978
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:41:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:41:34 remove worker.pid",
        "2022/02/02 21:41:34 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 26.351458311080933,
      "total_seconds": 26.592119693756104,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 120,
        "Create()/acquire-cgroup.cnt": 14,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 14,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 10,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 168,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 11,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 6,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5267,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 220,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 10,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 31,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 3113,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5267
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:01 remove worker.pid",
        "2022/02/02 21:42:01 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "seconds": 5,
        "fork": false
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 5.090688705444336,
      "total_seconds": 5.321784496307373,
      "stats": {
        "sandboxes_per_sec": 5.4
      },
      "ol-stats": {
        "Create().cnt": 27,
        "Create().ms-avg": 169,
        "Create()/acquire-cgroup.cnt": 27,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 27,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 27,
        "Create()/fresh-proc.ms-avg": 161,
        "Create()/make-root-fs.cnt": 27,
        "Create()/make-root-fs.ms-avg": 7,
        "Destroy().cnt": 54,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 27,
        "Destroy()/detach-root.ms-avg": 7,
        "Destroy()/kill-procs.cnt": 27,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 27,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 44,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:06 remove worker.pid",
        "2022/02/02 21:42:06 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 10.209749460220337,
      "total_seconds": 10.45575737953186,
      "stats": {
        "sandboxes_per_sec": 27.3
      },
      "ol-stats": {
        "Create().cnt": 274,
        "Create().ms-avg": 16,
        "Create()/acquire-cgroup.cnt": 274,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 274,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 273,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 274,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 547,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 274,
        "Destroy()/detach-root.ms-avg": 4,
        "Destroy()/kill-procs.cnt": 274,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 274,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 273,
        "childExit().ms-avg": 0,
        "fork().cnt": 273,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 273,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 291,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 273,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:17 remove worker.pid",
        "2022/02/02 21:42:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 10.379953145980835,
      "total_seconds": 10.637861013412476,
      "stats": {
        "sandboxes_per_sec": 31.9
      },
      "ol-stats": {
        "Create().cnt": 320,
        "Create().ms-avg": 138,
        "Create()/acquire-cgroup.cnt": 320,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 320,
        "Create()/acquire-mem.ms-avg": 27,
        "Create()/fork-proc.cnt": 319,
        "Create()/fork-proc.ms-avg": 106,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 153,
        "Create()/make-root-fs.cnt": 320,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 639,
        "Destroy().ms-avg": 83,
        "Destroy()/detach-root.cnt": 320,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 320,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 320,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 319,
        "childExit().ms-avg": 104,
        "fork().cnt": 319,
        "fork().ms-avg": 106,
        "forkRequest.cnt": 319,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 337,
        "fresh-cgroup.ms-avg": 8,
        "move-to-cg-after-fork.cnt": 319,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:27 remove worker.pid",
        "2022/02/02 21:42:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 11.17860722541809,
      "total_seconds": 11.658421277999878,
      "stats": {
        "sandboxes_per_sec": 31.8
      },
      "ol-stats": {
        "Create().cnt": 351,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 351,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 351,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 350,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 205,
        "Create()/make-root-fs.cnt": 351,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 669,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 351,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 351,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 351,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 350,
        "childExit().ms-avg": 0,
        "fork().cnt": 350,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 350,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 368,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 350,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:39 remove worker.pid",
        "2022/02/02 21:42:39 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 11.601238250732422,
      "total_seconds": 11.972384929656982,
      "stats": {
        "sandboxes_per_sec": 29.5
      },
      "ol-stats": {
        "Create().cnt": 328,
        "Create().ms-avg": 213,
        "Create()/acquire-cgroup.cnt": 328,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 328,
        "Create()/acquire-mem.ms-avg": 121,
        "Create()/fork-proc.cnt": 327,
        "Create()/fork-proc.ms-avg": 86,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 303,
        "Create()/make-root-fs.cnt": 328,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 623,
        "Destroy().ms-avg": 83,
        "Destroy()/detach-root.cnt": 328,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 328,
        "Destroy()/kill-procs.ms-avg": 17,
        "Destroy()/remove-root.cnt": 328,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 327,
        "childExit().ms-avg": 96,
        "fork().cnt": 327,
        "fork().ms-avg": 85,
        "forkRequest.cnt": 327,
        "forkRequest.ms-avg": 14,
        "fresh-cgroup.cnt": 345,
        "fresh-cgroup.ms-avg": 9,
        "move-to-cg-after-fork.cnt": 327,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:51 remove worker.pid",
        "2022/02/02 21:42:51 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmp2qqpg5li",
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 6.049846172332764,
      "total_seconds": 6.308537244796753,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 104,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 9,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 351,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 9,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 9,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 4,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1720,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1723,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1720,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1719,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 9,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1720,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:42:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:42:57 remove worker.pid",
        "2022/02/02 21:42:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.008027791976929,
      "total_seconds": 15.250385761260986,
      "stats": {
        "reqs_per_sec": 315.26666666666665
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 60,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 12,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 156,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 12,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 8,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 4,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4729,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4732,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4729,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4728,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 12,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4729,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:43:13 remove worker.pid",
        "2022/02/02 21:43:13 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.00890064239502,
      "total_seconds": 15.251334428787231,
      "stats": {
        "reqs_per_sec": 315.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 61,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 11,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 154,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 12,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 10,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 6,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4733,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4429,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4733,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4425,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 11,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 4733,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:43:28 remove worker.pid",
        "2022/02/02 21:43:28 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.029388189315796,
      "total_seconds": 15.277040243148804,
      "stats": {
        "reqs_per_sec": 331.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 65,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 10,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 156,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 17,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 16,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 7,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 2,
        "LambdaFunc.Invoke.cnt": 4975,
        "LambdaFunc.Invoke.ms-avg": 10,
        "Pause().cnt": 1131,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4975,
        "ServeHTTP.ms-avg": 1,
        "Unpause().cnt": 1128,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 10,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 4975,
        "web-request.ms-avg": 10
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:43:43 remove worker.pid",
        "2022/02/02 21:43:43 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmpxt_ewude",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 4.322673082351685,
      "total_seconds": 4.783296346664429,
      "stats": {
        "reqs_per_sec": 23.13396762361766
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 154,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 159,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 200,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 9,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 1,
        "childExit().cnt": 100,
        "childExit().ms-avg": 0,
        "evict.cnt": 58,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 62,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 7,
        "web-request.cnt": 100,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:43:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:43:48 remove worker.pid",
        "2022/02/02 21:43:48 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmpzu_s5s15",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 68.48254776000977,
      "total_seconds": 69.47895884513855,
      "stats": {
        "reqs_per_sec": 14.602265044738354
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 299,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 8,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 63,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 31,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 1,
        "evict.cnt": 981,
        "evict.ms-avg": 17,
        "fork().cnt": 1000,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 39,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 8,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 63
      },
      "errors": [],
      "worker_tail": [
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2022/02/02 21:44:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2022/02/02 21:44:57 remove worker.pid",
        "2022/02/02 21:44:57 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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