{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock"
      },
      "seconds": 2.1728413105010986,
      "total_seconds": 2.405644416809082,
      "stats": {
        "pings_per_sec": 460.23123352233193
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:46:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:46:58 remove worker.pid",
        "2019/09/10 21:46:58 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock"
      },
      "seconds": 13.492822647094727,
      "total_seconds": 13.731256484985352,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 359,
        "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": 358,
        "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": 3355,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 63,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1734,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3355
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:47:11 remove worker.pid",
        "2019/09/10 21:47:11 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.203479290008545,
      "total_seconds": 6.440326452255249,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "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": 139,
        "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": 1543,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 59,
        "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": 953,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1543
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:47:18 remove worker.pid",
        "2019/09/10 21:47:18 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "docker"
      },
      "seconds": 26.00770902633667,
      "total_seconds": 27.034496307373047,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1150,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 263,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6491,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3254,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6491
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:47:44 Kill function: install3",
        "2019/09/10 21:47:44 Destroy() [SB 9]",
        "2019/09/10 21:47:44 Kill function: echo",
        "2019/09/10 21:47:44 Destroy() [SB 0]",
        "2019/09/10 21:47:45 Kill function: install",
        "2019/09/10 21:47:45 Destroy() [SB 6]",
        "2019/09/10 21:47:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:47:45 remove worker.pid",
        "2019/09/10 21:47:45 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.5755820274353027,
      "total_seconds": 0.8027937412261963,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 277,
        "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": 410,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "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": 571,
        "Pause().cnt": 2,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 410,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 410,
        "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": 571
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:47:46 remove worker.pid",
        "2019/09/10 21:47:46 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.816842794418335,
      "total_seconds": 1.0486230850219727,
      "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": 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": 813,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 651,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 813
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:47:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:47:47 remove worker.pid",
        "2019/09/10 21:47:47 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 34.26965618133545,
      "total_seconds": 34.66482090950012,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 164,
        "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": 52,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 52,
        "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": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 6850,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 366,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 52,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 52,
        "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": 4469,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6850
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:48:21 remove worker.pid",
        "2019/09/10 21:48:21 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": false,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 5.155540466308594,
      "total_seconds": 5.278527021408081,
      "stats": {
        "sandboxes_per_sec": 3.8
      },
      "ol-stats": {
        "Create().cnt": 19,
        "Create().ms-avg": 235,
        "Create()/acquire-cgroup.cnt": 19,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 19,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 19,
        "Create()/fresh-proc.ms-avg": 147,
        "Create()/make-root-fs.cnt": 19,
        "Create()/make-root-fs.ms-avg": 86,
        "Destroy().cnt": 38,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 19,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 19,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 19,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 36,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:48:27 remove worker.pid",
        "2019/09/10 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.166112184524536,
      "total_seconds": 10.402376413345337,
      "stats": {
        "sandboxes_per_sec": 45.8
      },
      "ol-stats": {
        "Create().cnt": 459,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 459,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 459,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 458,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 459,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 917,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 459,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 459,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 459,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 458,
        "childExit().ms-avg": 0,
        "fork().cnt": 458,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 458,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 476,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 458,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:48:37 remove worker.pid",
        "2019/09/10 21:48:37 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.376528978347778,
      "total_seconds": 10.616742610931396,
      "stats": {
        "sandboxes_per_sec": 46.9
      },
      "ol-stats": {
        "Create().cnt": 470,
        "Create().ms-avg": 81,
        "Create()/acquire-cgroup.cnt": 470,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 470,
        "Create()/acquire-mem.ms-avg": 20,
        "Create()/fork-proc.cnt": 469,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 470,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 939,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 470,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 470,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 470,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 469,
        "childExit().ms-avg": 56,
        "fork().cnt": 469,
        "fork().ms-avg": 56,
        "forkRequest.cnt": 469,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 487,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 469,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:48:48 remove worker.pid",
        "2019/09/10 21:48:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.772566556930542,
      "total_seconds": 11.6814284324646,
      "stats": {
        "sandboxes_per_sec": 41.9
      },
      "ol-stats": {
        "Create().cnt": 452,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 452,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 452,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 451,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 452,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 871,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 452,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 452,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 452,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 451,
        "childExit().ms-avg": 0,
        "fork().cnt": 451,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 451,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 469,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 451,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:48:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:48:59 remove worker.pid",
        "2019/09/10 21:48:59 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 11.030637979507446,
      "total_seconds": 11.378296613693237,
      "stats": {
        "sandboxes_per_sec": 39.9
      },
      "ol-stats": {
        "Create().cnt": 432,
        "Create().ms-avg": 129,
        "Create()/acquire-cgroup.cnt": 432,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 432,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 431,
        "Create()/fork-proc.ms-avg": 51,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 166,
        "Create()/make-root-fs.cnt": 432,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 831,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 432,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 432,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 432,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 431,
        "childExit().ms-avg": 57,
        "fork().cnt": 431,
        "fork().ms-avg": 51,
        "forkRequest.cnt": 431,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 449,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 431,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:49:11 remove worker.pid",
        "2019/09/10 21:49:11 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmp2pb0yp6b",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock"
      },
      "seconds": 6.031005382537842,
      "total_seconds": 6.37619686126709,
      "stats": null,
      "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": 138,
        "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": 1709,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1712,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1709,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1708,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1709,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:49:17 remove worker.pid",
        "2019/09/10 21:49:17 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.042410850524902,
      "total_seconds": 15.271894216537476,
      "stats": {
        "reqs_per_sec": 289.06666666666666
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4336,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4339,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4336,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4335,
        "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": 4336,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:49:32 remove worker.pid",
        "2019/09/10 21:49:32 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.050353288650513,
      "total_seconds": 15.282535791397095,
      "stats": {
        "reqs_per_sec": 289.73333333333335
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "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": 4346,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3850,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4346,
        "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": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4346,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:49:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:49:48 remove worker.pid",
        "2019/09/10 21:49:48 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.06164813041687,
      "total_seconds": 15.292507886886597,
      "stats": {
        "reqs_per_sec": 261.1333333333333
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 3917,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2881,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3917,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2877,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 3917,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:50:03 remove worker.pid",
        "2019/09/10 21:50:03 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpr1pn0hnc",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock"
      },
      "seconds": 2.743929386138916,
      "total_seconds": 3.1846277713775635,
      "stats": {
        "reqs_per_sec": 36.44441270053944
      },
      "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": 151,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 50,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:50:06 remove worker.pid",
        "2019/09/10 21:50:06 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/tmp/tmpnrzmdbju",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 43.25443077087402,
      "total_seconds": 43.800201416015625,
      "stats": {
        "reqs_per_sec": 23.119032859730304
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "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": 274,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 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": 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": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/10 21:50:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/10 21:50:50 remove worker.pid",
        "2019/09/10 21:50:50 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 344.2910740375519
}