{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "lambda",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 2.3683385848999023,
      "total_seconds": 2.7824668884277344,
      "stats": {
        "pings_per_sec": 422.2405374488836
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:45:37 remove worker.pid",
        "2021/05/03 21:45:37 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 14.617138862609863,
      "total_seconds": 14.855304718017578,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 461,
        "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": 459,
        "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": 3642,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 217,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 32,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1609,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3642
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:45:52 remove worker.pid",
        "2021/05/03 21:45:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 6.563404560089111,
      "total_seconds": 6.80037522315979,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "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": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 1633,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "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": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "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": 1023,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1633
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:45:59 remove worker.pid",
        "2021/05/03 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "sandbox": "docker",
        "server_mode": "lambda",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 24.142255306243896,
      "total_seconds": 25.167101860046387,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1444,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 338,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6023,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2195,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6023
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:46:24 Kill function: echo",
        "2021/05/03 21:46:24 Destroy() [SB 0]",
        "2021/05/03 21:46:24 Kill function: install",
        "2021/05/03 21:46:24 Destroy() [SB 6]",
        "2021/05/03 21:46:24 Kill function: install2",
        "2021/05/03 21:46:24 Destroy() [SB 7]",
        "2021/05/03 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:46:24 remove worker.pid",
        "2021/05/03 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 0.1775529384613037,
      "total_seconds": 0.4076714515686035,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "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": 8,
        "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": 173,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 173
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:46:25 remove worker.pid",
        "2021/05/03 21:46:25 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 0.8577589988708496,
      "total_seconds": 1.0914175510406494,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "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": 8,
        "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": 854,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 689,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 854
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:46:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:46:26 remove worker.pid",
        "2021/05/03 21:46:26 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "lambda",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 45.275957345962524,
      "total_seconds": 45.671037435531616,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 121,
        "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": 181,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 2,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9051,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 665,
        "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": 6,
        "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": 5211,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9051
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:47:11 remove worker.pid",
        "2021/05/03 21:47:11 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "fork": false,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "sock",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 5.174170732498169,
      "total_seconds": 5.9422502517700195,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:47:17 remove worker.pid",
        "2021/05/03 21:47:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "sock",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 10.176415920257568,
      "total_seconds": 10.408282995223999,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 0,
        "fork().cnt": 438,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:47:28 remove worker.pid",
        "2021/05/03 21:47:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 15,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "sock",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 10.453827619552612,
      "total_seconds": 10.688461780548096,
      "stats": {
        "sandboxes_per_sec": 45.7
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 88,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 67,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 915,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 63,
        "fork().cnt": 457,
        "fork().ms-avg": 67,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:47:38 remove worker.pid",
        "2021/05/03 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 1,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "sock",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 10.816770553588867,
      "total_seconds": 11.166829824447632,
      "stats": {
        "sandboxes_per_sec": 47.0
      },
      "ol-stats": {
        "Create().cnt": 503,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 503,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 503,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 502,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 503,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 973,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 503,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 503,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 503,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 502,
        "childExit().ms-avg": 0,
        "fork().cnt": 502,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 502,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 520,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 502,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:47:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:47:50 remove worker.pid",
        "2021/05/03 21:47:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 15,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "server_mode": "sock",
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 11.039204120635986,
      "total_seconds": 11.511701583862305,
      "stats": {
        "sandboxes_per_sec": 41.1
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 121,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 70,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 47,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 169,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 443,
        "childExit().ms-avg": 51,
        "fork().cnt": 443,
        "fork().ms-avg": 47,
        "forkRequest.cnt": 443,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 461,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 443,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:01 remove worker.pid",
        "2021/05/03 21:48:01 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 3000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpo0_mnypq",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 6.032819747924805,
      "total_seconds": 6.27588677406311,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 41,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1688,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1691,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1688,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1687,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "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": 1688,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:07 remove worker.pid",
        "2021/05/03 21:48:07 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.046704053878784,
      "total_seconds": 15.278663396835327,
      "stats": {
        "reqs_per_sec": 287.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "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": 139,
        "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": 4306,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4309,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4306,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4305,
        "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": 4306,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:23 remove worker.pid",
        "2021/05/03 21:48:23 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.043582916259766,
      "total_seconds": 15.273635387420654,
      "stats": {
        "reqs_per_sec": 285.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 4278,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3850,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4278,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3846,
        "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": 4278,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:38 remove worker.pid",
        "2021/05/03 21:48:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.06356692314148,
      "total_seconds": 15.29511570930481,
      "stats": {
        "reqs_per_sec": 264.93333333333334
      },
      "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 8,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 5,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3974,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2922,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3974,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2918,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 4,
        "web-request.cnt": 3974,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:53 remove worker.pid",
        "2021/05/03 21:48:53 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmp886rnbv9",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 2.75368595123291,
      "total_seconds": 3.4133641719818115,
      "stats": {
        "reqs_per_sec": 36.315342206598885
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 152,
        "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": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 51,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 67,
        "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": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:48:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:48:57 remove worker.pid",
        "2021/05/03 21:48:57 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "package": false,
          "evictor": false,
          "memory": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmphmqm8v1x",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 42.38336110115051,
      "total_seconds": 42.92142915725708,
      "stats": {
        "reqs_per_sec": 23.59417884578645
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "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": 276,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "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": 38,
        "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": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "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": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/03 21:49:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/03 21:49:40 remove worker.pid",
        "2021/05/03 21:49:40 exiting",
        ""
      ]
    }
  ],
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