{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 2.200638771057129,
      "total_seconds": 2.5724499225616455,
      "stats": {
        "pings_per_sec": 454.41765084185766
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:46:36 remove worker.pid",
        "2019/09/07 21:46:36 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 11.565163612365723,
      "total_seconds": 11.803893089294434,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 340,
        "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": 338,
        "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": 2879,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 66,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1449,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2879
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:46:48 remove worker.pid",
        "2019/09/07 21:46:48 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 6.829300403594971,
      "total_seconds": 7.064944744110107,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 3,
        "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": 1699,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 61,
        "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": 1056,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1699
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:46:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:46:55 remove worker.pid",
        "2019/09/07 21:46:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "docker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 26.96644377708435,
      "total_seconds": 27.99442768096924,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1164,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 263,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6731,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3077,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6731
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:47:22 Kill function: install",
        "2019/09/07 21:47:22 Destroy() [SB 6]",
        "2019/09/07 21:47:22 Kill function: install2",
        "2019/09/07 21:47:22 Destroy() [SB 7]",
        "2019/09/07 21:47:23 Kill function: install3",
        "2019/09/07 21:47:23 Destroy() [SB 9]",
        "2019/09/07 21:47:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:47:23 remove worker.pid",
        "2019/09/07 21:47:23 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 0.17953038215637207,
      "total_seconds": 0.4102137088775635,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 175,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 175
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:47:23 remove worker.pid",
        "2019/09/07 21:47:23 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 0.8555481433868408,
      "total_seconds": 1.0846943855285645,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 851,
        "Pause().cnt": 2,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 693,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 851
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:47:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:47:24 remove worker.pid",
        "2019/09/07 21:47:24 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 59.29160499572754,
      "total_seconds": 59.52509593963623,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 104,
        "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": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 9,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 110,
        "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": 107,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 11854,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 323,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 19,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 8180,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11854
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:48:24 remove worker.pid",
        "2019/09/07 21:48:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": false,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 5.043359279632568,
      "total_seconds": 5.166097402572632,
      "stats": {
        "sandboxes_per_sec": 5.4
      },
      "ol-stats": {
        "Create().cnt": 27,
        "Create().ms-avg": 167,
        "Create()/acquire-cgroup.cnt": 27,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 27,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 27,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 27,
        "Create()/make-root-fs.ms-avg": 26,
        "Destroy().cnt": 54,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 27,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 27,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 27,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 44,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:48:29 remove worker.pid",
        "2019/09/07 21:48:29 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 10.256046533584595,
      "total_seconds": 10.498533010482788,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 0,
        "fork().cnt": 438,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:48:40 remove worker.pid",
        "2019/09/07 21:48:40 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 10.387818098068237,
      "total_seconds": 10.618763208389282,
      "stats": {
        "sandboxes_per_sec": 46.4
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 59,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 38,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 929,
        "Destroy().ms-avg": 52,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 21,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 35,
        "fork().cnt": 464,
        "fork().ms-avg": 38,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:48:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:48:50 remove worker.pid",
        "2019/09/07 21:48:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 10.796176671981812,
      "total_seconds": 11.166707754135132,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 0,
        "fork().cnt": 461,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:49:01 remove worker.pid",
        "2019/09/07 21:49:01 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 11.214059591293335,
      "total_seconds": 11.672088861465454,
      "stats": {
        "sandboxes_per_sec": 41.1
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 127,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 53,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 308,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 45,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 443,
        "childExit().ms-avg": 55,
        "fork().cnt": 443,
        "fork().ms-avg": 53,
        "forkRequest.cnt": 443,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 461,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 443,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:49:13 remove worker.pid",
        "2019/09/07 21:49:13 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/tmp/tmplh4xqr73",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 6.033681631088257,
      "total_seconds": 6.280898094177246,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 47,
        "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": 158,
        "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": 1703,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1706,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1703,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1702,
        "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": 2,
        "web-request.cnt": 1703,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:49:19 remove worker.pid",
        "2019/09/07 21:49:19 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 15.04056429862976,
      "total_seconds": 15.271923780441284,
      "stats": {
        "reqs_per_sec": 285.46666666666664
      },
      "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": 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": 4282,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4285,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4282,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4281,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4282,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:49:35 remove worker.pid",
        "2019/09/07 21:49:35 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 15.044593095779419,
      "total_seconds": 15.272995710372925,
      "stats": {
        "reqs_per_sec": 285.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4288,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3850,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4288,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3846,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 4288,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:49:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:49:50 remove worker.pid",
        "2019/09/07 21:49:50 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 15.064104080200195,
      "total_seconds": 15.295442581176758,
      "stats": {
        "reqs_per_sec": 247.13333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 3707,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2733,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3707,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2729,
        "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": 4,
        "web-request.cnt": 3707,
        "web-request.ms-avg": 4
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:50:05 remove worker.pid",
        "2019/09/07 21:50:05 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/tmp/tmp3n37p36u",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 2.8025362491607666,
      "total_seconds": 3.2453348636627197,
      "stats": {
        "reqs_per_sec": 35.682323072445605
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 52,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "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": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:50:08 remove worker.pid",
        "2019/09/07 21:50:08 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/tmp/tmp8567myeq",
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": ""
      },
      "seconds": 43.36757802963257,
      "total_seconds": 43.93007826805115,
      "stats": {
        "reqs_per_sec": 23.058715488768463
      },
      "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": 150,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/07 21:50:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/07 21:50:52 remove worker.pid",
        "2019/09/07 21:50:52 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 353.99727058410645
}