{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 2.3380157947540283,
      "total_seconds": 2.6278953552246094,
      "stats": {
        "pings_per_sec": 427.7169889437971
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:46:38 remove worker.pid",
        "2021/01/19 21:46:38 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 16.194292545318604,
      "total_seconds": 16.439080238342285,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 309,
        "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": 280,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 29,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4036,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 169,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 9,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2299,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4036
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:46:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:46:54 remove worker.pid",
        "2021/01/19 21:46:54 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 6.098159551620483,
      "total_seconds": 6.340368032455444,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 96,
        "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": 5,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1515,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 4,
        "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": 941,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1515
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:47:01 remove worker.pid",
        "2021/01/19 21:47:01 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "docker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 19.983592748641968,
      "total_seconds": 21.917988538742065,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1144,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 363,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4984,
        "Pause().cnt": 4,
        "Pause().ms-avg": 108,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2154,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4984
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:47:22 Kill function: install2",
        "2021/01/19 21:47:22 Destroy() [SB 7]",
        "2021/01/19 21:47:22 Kill function: install3",
        "2021/01/19 21:47:22 Destroy() [SB 9]",
        "2021/01/19 21:47:22 Kill function: echo",
        "2021/01/19 21:47:22 Destroy() [SB 0]",
        "2021/01/19 21:47:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:47:23 remove worker.pid",
        "2021/01/19 21:47:23 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 0.19054913520812988,
      "total_seconds": 0.4262392520904541,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 80,
        "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": 144,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 3,
        "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": 186,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 15,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 186
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:47:23 remove worker.pid",
        "2021/01/19 21:47:23 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 0.9205474853515625,
      "total_seconds": 1.153791904449463,
      "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 916,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 746,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 2,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 916
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:47:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:47:24 remove worker.pid",
        "2021/01/19 21:47:24 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 83.28970623016357,
      "total_seconds": 83.80258464813232,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 312,
        "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": 156,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 209,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 16654,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 411,
        "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": 3,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 10120,
        "web-request.cnt": 5,
        "web-request.ms-avg": 16654
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:48:48 remove worker.pid",
        "2021/01/19 21:48:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 5.152729749679565,
      "total_seconds": 5.381253004074097,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 146,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:48:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:48:53 remove worker.pid",
        "2021/01/19 21:48:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.269898653030396,
      "total_seconds": 10.500414371490479,
      "stats": {
        "sandboxes_per_sec": 38.6
      },
      "ol-stats": {
        "Create().cnt": 387,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 387,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 387,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 386,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 387,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 773,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 387,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 387,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 387,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 386,
        "childExit().ms-avg": 0,
        "fork().cnt": 386,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 386,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 404,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 386,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:04 remove worker.pid",
        "2021/01/19 21:49:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.347553968429565,
      "total_seconds": 10.588708877563477,
      "stats": {
        "sandboxes_per_sec": 40.6
      },
      "ol-stats": {
        "Create().cnt": 407,
        "Create().ms-avg": 106,
        "Create()/acquire-cgroup.cnt": 407,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 407,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 406,
        "Create()/fork-proc.ms-avg": 87,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 407,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 813,
        "Destroy().ms-avg": 68,
        "Destroy()/detach-root.cnt": 407,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 407,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 407,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 406,
        "childExit().ms-avg": 94,
        "fork().cnt": 406,
        "fork().ms-avg": 87,
        "forkRequest.cnt": 406,
        "forkRequest.ms-avg": 13,
        "fresh-cgroup.cnt": 424,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 406,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:14 remove worker.pid",
        "2021/01/19 21:49:14 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.921570777893066,
      "total_seconds": 11.265142440795898,
      "stats": {
        "sandboxes_per_sec": 39.9
      },
      "ol-stats": {
        "Create().cnt": 432,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 432,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 432,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 431,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 432,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 831,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 432,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 432,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 432,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 431,
        "childExit().ms-avg": 0,
        "fork().cnt": 431,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 431,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 449,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 431,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:26 remove worker.pid",
        "2021/01/19 21:49:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 11.231355667114258,
      "total_seconds": 11.586373805999756,
      "stats": {
        "sandboxes_per_sec": 38.1
      },
      "ol-stats": {
        "Create().cnt": 414,
        "Create().ms-avg": 144,
        "Create()/acquire-cgroup.cnt": 414,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 414,
        "Create()/acquire-mem.ms-avg": 80,
        "Create()/fork-proc.cnt": 413,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 157,
        "Create()/make-root-fs.cnt": 414,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 795,
        "Destroy().ms-avg": 58,
        "Destroy()/detach-root.cnt": 414,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 414,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 414,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 413,
        "childExit().ms-avg": 68,
        "fork().cnt": 413,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 413,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 431,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 413,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:37 remove worker.pid",
        "2021/01/19 21:49:37 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpzhu_zsgx",
        "server_mode": "lambda",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.0339272022247314,
      "total_seconds": 6.2746546268463135,
      "stats": null,
      "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": 6,
        "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": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1611,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1614,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1611,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1610,
        "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": 1611,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:44 remove worker.pid",
        "2021/01/19 21:49:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.048098087310791,
      "total_seconds": 15.280750274658203,
      "stats": {
        "reqs_per_sec": 275.1333333333333
      },
      "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": 141,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 4,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4127,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4130,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4127,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4126,
        "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": 1,
        "web-request.cnt": 4127,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:49:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:49:59 remove worker.pid",
        "2021/01/19 21:49:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.054003477096558,
      "total_seconds": 15.289116144180298,
      "stats": {
        "reqs_per_sec": 270.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 143,
        "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": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4063,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3676,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4063,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3672,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4063,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:50:14 remove worker.pid",
        "2021/01/19 21:50:14 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        }
      },
      "seconds": 15.073955059051514,
      "total_seconds": 15.307917356491089,
      "stats": {
        "reqs_per_sec": 241.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 142,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "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": 3616,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2712,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3616,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2708,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 3616,
        "web-request.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:50:29 remove worker.pid",
        "2021/01/19 21:50:29 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/tmp/tmp2xbh_ze2"
      },
      "seconds": 3.2380824089050293,
      "total_seconds": 3.692758321762085,
      "stats": {
        "reqs_per_sec": 30.88396474829589
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 28,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 7,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 52,
        "evict.ms-avg": 13,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 69,
        "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": 28
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:50:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:50:33 remove worker.pid",
        "2021/01/19 21:50:33 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "import_cache_tree": "",
        "pip_mirror": "",
        "registry": "/tmp/tmp5l7n_wzk"
      },
      "seconds": 48.55148267745972,
      "total_seconds": 49.491939306259155,
      "stats": {
        "reqs_per_sec": 20.596705681287187
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 7,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 44,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 5,
        "evict.cnt": 981,
        "evict.ms-avg": 15,
        "fork().cnt": 1000,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 6,
        "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": 44
      },
      "errors": [],
      "worker_tail": [
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/19 21:51:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/19 21:51:23 remove worker.pid",
        "2021/01/19 21:51:23 exiting",
        ""
      ]
    }
  ],
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