{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 2.1708438396453857,
      "total_seconds": 2.388953685760498,
      "stats": {
        "pings_per_sec": 460.6547126976078
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:02 remove worker.pid",
        "2020/03/08 21:45:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 10.794831991195679,
      "total_seconds": 11.034280061721802,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 287,
        "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": 283,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 2688,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 66,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1416,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2688
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:13 remove worker.pid",
        "2020/03/08 21:45:13 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 6.073004245758057,
      "total_seconds": 6.3106443881988525,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "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": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1510,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 943,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1510
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:19 remove worker.pid",
        "2020/03/08 21:45:19 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "docker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 20.571225881576538,
      "total_seconds": 21.598718881607056,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 863,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 259,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5132,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2515,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5132
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:40 Kill function: echo",
        "2020/03/08 21:45:40 Destroy() [SB 0]",
        "2020/03/08 21:45:40 Kill function: install",
        "2020/03/08 21:45:40 Destroy() [SB 6]",
        "2020/03/08 21:45:41 Kill function: install2",
        "2020/03/08 21:45:41 Destroy() [SB 7]",
        "2020/03/08 21:45:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:41 remove worker.pid",
        "2020/03/08 21:45:41 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 0.19795656204223633,
      "total_seconds": 0.42983365058898926,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 86,
        "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": 162,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 194,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 194
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:41 remove worker.pid",
        "2020/03/08 21:45:41 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 0.8360347747802734,
      "total_seconds": 1.067922592163086,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 832,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 669,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 832
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:45:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:45:42 remove worker.pid",
        "2020/03/08 21:45:42 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 46.77496647834778,
      "total_seconds": 47.03538179397583,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 126,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 37,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 69,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 66,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9351,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 429,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 6269,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9351
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:46:29 remove worker.pid",
        "2020/03/08 21:46:29 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "seconds": 5,
        "fork": false
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 5.093605041503906,
      "total_seconds": 5.314755201339722,
      "stats": {
        "sandboxes_per_sec": 5.8
      },
      "ol-stats": {
        "Create().cnt": 29,
        "Create().ms-avg": 157,
        "Create()/acquire-cgroup.cnt": 29,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 29,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 29,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 29,
        "Create()/make-root-fs.ms-avg": 17,
        "Destroy().cnt": 58,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 29,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 29,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 29,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 46,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:46:35 remove worker.pid",
        "2020/03/08 21:46:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 10.157807350158691,
      "total_seconds": 10.384459257125854,
      "stats": {
        "sandboxes_per_sec": 46.3
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 927,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 0,
        "fork().cnt": 463,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:46:45 remove worker.pid",
        "2020/03/08 21:46:45 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 0,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 10.335742712020874,
      "total_seconds": 10.570860385894775,
      "stats": {
        "sandboxes_per_sec": 46.3
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 59,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 927,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 52,
        "fork().cnt": 463,
        "fork().ms-avg": 59,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:46:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:46:56 remove worker.pid",
        "2020/03/08 21:46:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 32,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 10.716126918792725,
      "total_seconds": 11.054694414138794,
      "stats": {
        "sandboxes_per_sec": 39.1
      },
      "ol-stats": {
        "Create().cnt": 424,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 424,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 424,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 423,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 424,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 815,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 424,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 424,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 424,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 423,
        "childExit().ms-avg": 0,
        "fork().cnt": 423,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 423,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 441,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 423,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:47:07 remove worker.pid",
        "2020/03/08 21:47:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 32,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 10.922844409942627,
      "total_seconds": 11.295269966125488,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 118,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 69,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 45,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 172,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 49,
        "fork().cnt": 461,
        "fork().ms-avg": 45,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:47:18 remove worker.pid",
        "2020/03/08 21:47:18 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/tmp/tmp96bfirbn",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry_cache_ms": 3000
      },
      "seconds": 6.029357671737671,
      "total_seconds": 6.278399229049683,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 48,
        "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": 163,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1705,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1708,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1705,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1704,
        "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": 1705,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:47:24 remove worker.pid",
        "2020/03/08 21:47:24 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 15.043811082839966,
      "total_seconds": 15.272535562515259,
      "stats": {
        "reqs_per_sec": 290.06666666666666
      },
      "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": 138,
        "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": 4351,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4354,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4351,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4350,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 4,
        "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": 4351,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:47:40 remove worker.pid",
        "2020/03/08 21:47:40 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 15.047912359237671,
      "total_seconds": 15.278929948806763,
      "stats": {
        "reqs_per_sec": 292.73333333333335
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "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": 136,
        "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": 4391,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4085,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4391,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4081,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4391,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:47:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:47:55 remove worker.pid",
        "2020/03/08 21:47:55 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 15.062603950500488,
      "total_seconds": 15.293588876724243,
      "stats": {
        "reqs_per_sec": 267.93333333333334
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4019,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3034,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4019,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3030,
        "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": 5,
        "web-request.cnt": 4019,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:48:10 remove worker.pid",
        "2020/03/08 21:48:10 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/tmp/tmp2_m_eh3o",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 2.652644157409668,
      "total_seconds": 3.082771062850952,
      "stats": {
        "reqs_per_sec": 37.698610043156116
      },
      "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": 132,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 65,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:48:13 remove worker.pid",
        "2020/03/08 21:48:13 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/tmp/tmp3pzbse_0",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "pip_mirror": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000
      },
      "seconds": 41.95865535736084,
      "total_seconds": 42.53183698654175,
      "stats": {
        "reqs_per_sec": 23.833001161516055
      },
      "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": 133,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1983,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 982,
        "evict.ms-avg": 10,
        "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": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/08 21:48:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/08 21:48:56 remove worker.pid",
        "2020/03/08 21:48:56 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 313.69448947906494
}