{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 2.234849214553833,
      "total_seconds": 2.483269214630127,
      "stats": {
        "pings_per_sec": 447.4615385928408
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:49:35 remove worker.pid",
        "2021/03/07 21:49:35 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "server_mode": "lambda",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 13.965718269348145,
      "total_seconds": 14.202649354934692,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 506,
        "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": 504,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "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": 3479,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 184,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1494,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3479
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:49:49 remove worker.pid",
        "2021/03/07 21:49:49 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 6.435128927230835,
      "total_seconds": 6.670919895172119,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 100,
        "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": 28,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1600,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 28,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 28,
        "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": 988,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1600
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:49:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:49:56 remove worker.pid",
        "2021/03/07 21:49:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "sandbox": "docker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 28.509264707565308,
      "total_seconds": 30.238144874572754,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1619,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 444,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7115,
        "Pause().cnt": 4,
        "Pause().ms-avg": 31,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2760,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7115
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:50:25 Kill function: echo",
        "2021/03/07 21:50:25 Destroy() [SB 0]",
        "2021/03/07 21:50:25 Kill function: install",
        "2021/03/07 21:50:25 Destroy() [SB 6]",
        "2021/03/07 21:50:25 Kill function: install2",
        "2021/03/07 21:50:25 Destroy() [SB 7]",
        "2021/03/07 21:50:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:50:26 remove worker.pid",
        "2021/03/07 21:50:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 0.18119382858276367,
      "total_seconds": 0.4110069274902344,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "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": 10,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "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": 177,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 10,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 9,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 177
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:50:26 remove worker.pid",
        "2021/03/07 21:50:26 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 0.8455383777618408,
      "total_seconds": 1.0797762870788574,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "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": 841,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 682,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "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": 841
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:50:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:50:27 remove worker.pid",
        "2021/03/07 21:50:27 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 81.6186192035675,
      "total_seconds": 82.62148213386536,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 419,
        "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": 6,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 429,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 140,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 16318,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 730,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "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": 3,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 9706,
        "web-request.cnt": 5,
        "web-request.ms-avg": 16319
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:51:50 remove worker.pid",
        "2021/03/07 21:51:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 5.044287204742432,
      "total_seconds": 5.168279647827148,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 144,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:51:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:51:55 remove worker.pid",
        "2021/03/07 21:51:55 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 10.168769836425781,
      "total_seconds": 10.390231847763062,
      "stats": {
        "sandboxes_per_sec": 43.6
      },
      "ol-stats": {
        "Create().cnt": 437,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 437,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 437,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 436,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 437,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 873,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 437,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 437,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 437,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 436,
        "childExit().ms-avg": 0,
        "fork().cnt": 436,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 436,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 454,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 436,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:52:06 remove worker.pid",
        "2021/03/07 21:52:06 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 10.364580869674683,
      "total_seconds": 11.488163471221924,
      "stats": {
        "sandboxes_per_sec": 45.5
      },
      "ol-stats": {
        "Create().cnt": 456,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 456,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 456,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 455,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 456,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 456,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 456,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 456,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 455,
        "childExit().ms-avg": 55,
        "fork().cnt": 455,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 455,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 473,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 455,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:52:17 remove worker.pid",
        "2021/03/07 21:52:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 10.816598653793335,
      "total_seconds": 11.16049575805664,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 0,
        "fork().cnt": 461,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:52:28 remove worker.pid",
        "2021/03/07 21:52:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 11.109452962875366,
      "total_seconds": 11.490455627441406,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 121,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 71,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 44,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 262,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 46,
        "fork().cnt": 449,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:52:40 remove worker.pid",
        "2021/03/07 21:52:40 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "sandbox": "sock",
        "registry": "/tmp/tmpnrqhfn2o",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "server_mode": "lambda",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 6.029093027114868,
      "total_seconds": 6.373858451843262,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1696,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1699,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1696,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1695,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1696,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:52:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:52:46 remove worker.pid",
        "2021/03/07 21:52:46 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 15.049858570098877,
      "total_seconds": 15.28237509727478,
      "stats": {
        "reqs_per_sec": 283.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4247,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4250,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4247,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4246,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "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": 4247,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:53:01 remove worker.pid",
        "2021/03/07 21:53:01 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 15.044363975524902,
      "total_seconds": 15.274836301803589,
      "stats": {
        "reqs_per_sec": 271.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4065,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3654,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4065,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3650,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "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": 4065,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:53:17 remove worker.pid",
        "2021/03/07 21:53:17 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 15.065390825271606,
      "total_seconds": 15.298565864562988,
      "stats": {
        "reqs_per_sec": 239.46666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3592,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2658,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3592,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2654,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "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": 3592,
        "web-request.ms-avg": 4
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:53:32 remove worker.pid",
        "2021/03/07 21:53:32 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "sandbox": "sock",
        "registry": "/tmp/tmp3go9zgxi",
        "mem_pool_mb": 500,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 2.99676251411438,
      "total_seconds": 3.448235273361206,
      "stats": {
        "reqs_per_sec": 33.36966284205702
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 154,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 53,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "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": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:53:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:53:35 remove worker.pid",
        "2021/03/07 21:53:35 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/tmp/tmp573on14w",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        }
      },
      "seconds": 46.068360567092896,
      "total_seconds": 46.6253137588501,
      "stats": {
        "reqs_per_sec": 21.706883663738807
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 981,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "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": 4,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/07 21:54:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/07 21:54:22 remove worker.pid",
        "2021/03/07 21:54:22 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
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