{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 2.4026989936828613,
      "total_seconds": 2.613546133041382,
      "stats": {
        "pings_per_sec": 416.2021281926735
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:44:51 remove worker.pid",
        "2019/09/14 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "server_mode": "lambda",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 9.689874172210693,
      "total_seconds": 9.927323341369629,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 248,
        "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": 246,
        "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": 2413,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 67,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 12,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1285,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2413
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:45:01 remove worker.pid",
        "2019/09/14 21:45:01 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 6.4329845905303955,
      "total_seconds": 6.669122695922852,
      "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": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1600,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 60,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 992,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1600
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:45:07 remove worker.pid",
        "2019/09/14 21:45:07 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "docker",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "server_mode": "lambda",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 21.223753929138184,
      "total_seconds": 22.349881172180176,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 908,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 315,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5295,
        "Pause().cnt": 4,
        "Pause().ms-avg": 98,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2512,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5295
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:45:29 Kill function: install3",
        "2019/09/14 21:45:29 Destroy() [SB 9]",
        "2019/09/14 21:45:29 Kill function: echo",
        "2019/09/14 21:45:29 Destroy() [SB 0]",
        "2019/09/14 21:45:29 Kill function: install",
        "2019/09/14 21:45:29 Destroy() [SB 6]",
        "2019/09/14 21:45:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:45:30 remove worker.pid",
        "2019/09/14 21:45:30 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 0.1755359172821045,
      "total_seconds": 0.40900635719299316,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 171,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 171
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:45:30 remove worker.pid",
        "2019/09/14 21:45:30 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 0.8186702728271484,
      "total_seconds": 1.0523836612701416,
      "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": 814,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 654,
        "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": 814
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:45:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:45:31 remove worker.pid",
        "2019/09/14 21:45:31 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 36.69327688217163,
      "total_seconds": 36.94552683830261,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 114,
        "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": 144,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 22,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 7334,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 260,
        "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": 5,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4979,
        "web-request.cnt": 5,
        "web-request.ms-avg": 7334
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:08 remove worker.pid",
        "2019/09/14 21:46:08 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "baseline": 0,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 5.115323781967163,
      "total_seconds": 5.337634801864624,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 147,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:13 remove worker.pid",
        "2019/09/14 21:46:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 10.15055537223816,
      "total_seconds": 10.385211706161499,
      "stats": {
        "sandboxes_per_sec": 47.5
      },
      "ol-stats": {
        "Create().cnt": 476,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 476,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 476,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 475,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 476,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 951,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 476,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 476,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 476,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 475,
        "childExit().ms-avg": 0,
        "fork().cnt": 475,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 475,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 493,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 475,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:24 remove worker.pid",
        "2019/09/14 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 10.370071411132812,
      "total_seconds": 10.603082180023193,
      "stats": {
        "sandboxes_per_sec": 47.7
      },
      "ol-stats": {
        "Create().cnt": 478,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 478,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 478,
        "Create()/acquire-mem.ms-avg": 13,
        "Create()/fork-proc.cnt": 477,
        "Create()/fork-proc.ms-avg": 59,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 478,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 955,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 478,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 478,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 478,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 477,
        "childExit().ms-avg": 58,
        "fork().cnt": 477,
        "fork().ms-avg": 59,
        "forkRequest.cnt": 477,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 495,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 477,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:34 remove worker.pid",
        "2019/09/14 21:46:34 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 10.757537603378296,
      "total_seconds": 11.09164810180664,
      "stats": {
        "sandboxes_per_sec": 46.3
      },
      "ol-stats": {
        "Create().cnt": 496,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 496,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 496,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 495,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 496,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 959,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 496,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 496,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 496,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 495,
        "childExit().ms-avg": 0,
        "fork().cnt": 495,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 495,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 513,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 495,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:46 remove worker.pid",
        "2019/09/14 21:46:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 11.030137062072754,
      "total_seconds": 11.381049871444702,
      "stats": {
        "sandboxes_per_sec": 43.2
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 112,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 40,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 165,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 897,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 44,
        "fork().cnt": 464,
        "fork().ms-avg": 40,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:46:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:46:57 remove worker.pid",
        "2019/09/14 21:46:57 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 3000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "registry": "/tmp/tmpwwvlnd7z",
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 6.0312769412994385,
      "total_seconds": 6.2783424854278564,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 52,
        "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": 177,
        "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": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1706,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1709,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1706,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1705,
        "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": 2,
        "web-request.cnt": 1706,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:47:03 remove worker.pid",
        "2019/09/14 21:47:03 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 15.048452138900757,
      "total_seconds": 15.277930736541748,
      "stats": {
        "reqs_per_sec": 287.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4311,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4314,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4311,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4310,
        "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": 4311,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:47:19 remove worker.pid",
        "2019/09/14 21:47:19 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 15.04932975769043,
      "total_seconds": 15.279614210128784,
      "stats": {
        "reqs_per_sec": 294.0
      },
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4410,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4114,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4410,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4110,
        "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": 4410,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:47:34 remove worker.pid",
        "2019/09/14 21:47:34 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 15.064504861831665,
      "total_seconds": 15.294484853744507,
      "stats": {
        "reqs_per_sec": 265.8
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 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": 3987,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3025,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3987,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3021,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "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": 5,
        "web-request.cnt": 3987,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:47:49 remove worker.pid",
        "2019/09/14 21:47:49 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "registry": "/tmp/tmpa3xj7e2k",
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 2.735384702682495,
      "total_seconds": 3.190002202987671,
      "stats": {
        "reqs_per_sec": 36.55821268573913
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 6,
        "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 52,
        "evict.ms-avg": 9,
        "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": 23
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:47:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:47:52 remove worker.pid",
        "2019/09/14 21:47:52 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmpidw2fo55",
        "import_cache_tree": "",
        "worker_port": "5000"
      },
      "seconds": 41.24085235595703,
      "total_seconds": 41.78847336769104,
      "stats": {
        "reqs_per_sec": 24.247816880532056
      },
      "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": 201,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "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": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "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": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/14 21:48:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/14 21:48:34 remove worker.pid",
        "2019/09/14 21:48:34 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 309.00803995132446
}