{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 2.2204103469848633,
      "total_seconds": 2.5816807746887207,
      "stats": {
        "pings_per_sec": 450.3715564481682
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:46:18 remove worker.pid",
        "2021/01/18 21:46:18 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "docker_runtime": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500
      },
      "seconds": 14.474897384643555,
      "total_seconds": 14.712356805801392,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 524,
        "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": 522,
        "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": 3607,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 176,
        "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": 1551,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3607
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:46:32 remove worker.pid",
        "2021/01/18 21:46:32 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 5.985735177993774,
      "total_seconds": 6.223114013671875,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "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": 1488,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "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": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 927,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1488
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:46:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:46:39 remove worker.pid",
        "2021/01/18 21:46:39 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 22.021835327148438,
      "total_seconds": 23.04404640197754,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1269,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 306,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5493,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2168,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5493
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:47:01 Kill function: echo",
        "2021/01/18 21:47:01 Destroy() [SB 0]",
        "2021/01/18 21:47:01 Kill function: install",
        "2021/01/18 21:47:01 Destroy() [SB 6]",
        "2021/01/18 21:47:02 Kill function: install2",
        "2021/01/18 21:47:02 Destroy() [SB 7]",
        "2021/01/18 21:47:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:47:02 remove worker.pid",
        "2021/01/18 21:47:02 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 0.1864759922027588,
      "total_seconds": 0.4186091423034668,
      "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": 11,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 182,
        "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": 11,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 182
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:47:02 remove worker.pid",
        "2021/01/18 21:47:02 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 0.8798959255218506,
      "total_seconds": 1.1091914176940918,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "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": 876,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 708,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 876
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:47:03 remove worker.pid",
        "2021/01/18 21:47:03 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 46.36654472351074,
      "total_seconds": 46.62068510055542,
      "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": 182,
        "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": 9269,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 702,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 31,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 5321,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9269
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:47:50 remove worker.pid",
        "2021/01/18 21:47:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "baseline": 0,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 5.057933807373047,
      "total_seconds": 5.180607080459595,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 147,
        "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": 4,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:47:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:47:55 remove worker.pid",
        "2021/01/18 21:47:55 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.178730249404907,
      "total_seconds": 10.405768394470215,
      "stats": {
        "sandboxes_per_sec": 41.0
      },
      "ol-stats": {
        "Create().cnt": 411,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 411,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 411,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 410,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 411,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 821,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 411,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 411,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 411,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 410,
        "childExit().ms-avg": 0,
        "fork().cnt": 410,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 410,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 428,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 410,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:48:05 remove worker.pid",
        "2021/01/18 21:48:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.358651399612427,
      "total_seconds": 10.586071729660034,
      "stats": {
        "sandboxes_per_sec": 44.3
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 90,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 70,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 887,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 443,
        "childExit().ms-avg": 69,
        "fork().cnt": 443,
        "fork().ms-avg": 70,
        "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": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:48:16 remove worker.pid",
        "2021/01/18 21:48:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.849464416503906,
      "total_seconds": 11.189410924911499,
      "stats": {
        "sandboxes_per_sec": 41.5
      },
      "ol-stats": {
        "Create().cnt": 448,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 448,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 448,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 447,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 448,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 863,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 448,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 448,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 448,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 447,
        "childExit().ms-avg": 0,
        "fork().cnt": 447,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 447,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 465,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 447,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:48:27 remove worker.pid",
        "2021/01/18 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 11.088510513305664,
      "total_seconds": 11.44602370262146,
      "stats": {
        "sandboxes_per_sec": 40.7
      },
      "ol-stats": {
        "Create().cnt": 440,
        "Create().ms-avg": 133,
        "Create()/acquire-cgroup.cnt": 440,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 440,
        "Create()/acquire-mem.ms-avg": 77,
        "Create()/fork-proc.cnt": 439,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 174,
        "Create()/make-root-fs.cnt": 440,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 847,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 440,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 440,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 440,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 439,
        "childExit().ms-avg": 55,
        "fork().cnt": 439,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 439,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 457,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 439,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:48:39 remove worker.pid",
        "2021/01/18 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "docker_runtime": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmp4trycti4",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 3000,
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500
      },
      "seconds": 6.0344321727752686,
      "total_seconds": 6.374189853668213,
      "stats": null,
      "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": 140,
        "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": 1665,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1668,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1665,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1664,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1665,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:48:45 remove worker.pid",
        "2021/01/18 21:48:45 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.041512966156006,
      "total_seconds": 15.272530555725098,
      "stats": {
        "reqs_per_sec": 286.93333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4304,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4307,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4304,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4303,
        "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": 4304,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:49:00 remove worker.pid",
        "2021/01/18 21:49:00 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.046010255813599,
      "total_seconds": 15.275672197341919,
      "stats": {
        "reqs_per_sec": 277.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4156,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3740,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4156,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3736,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "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": 4156,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:49:16 remove worker.pid",
        "2021/01/18 21:49:16 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.063105344772339,
      "total_seconds": 15.292998313903809,
      "stats": {
        "reqs_per_sec": 253.86666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 5,
        "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": 1,
        "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": 3808,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2818,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3808,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2814,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 5,
        "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": 4,
        "web-request.cnt": 3808,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:49:31 remove worker.pid",
        "2021/01/18 21:49:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "docker_runtime": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpdojwz0ge",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500
      },
      "seconds": 2.9333438873291016,
      "total_seconds": 3.3619420528411865,
      "stats": {
        "reqs_per_sec": 34.09107460543701
      },
      "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": 154,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 53,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:49:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:49:34 remove worker.pid",
        "2021/01/18 21:49:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmp5gz8im8i",
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 43.32216119766235,
      "total_seconds": 43.941699266433716,
      "stats": {
        "reqs_per_sec": 23.082889132284244
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "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": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/18 21:50:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/18 21:50:18 remove worker.pid",
        "2021/01/18 21:50:18 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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