{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.177288293838501,
      "total_seconds": 2.5089335441589355,
      "stats": {
        "pings_per_sec": 459.29133002070387
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:44:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:44:56 remove worker.pid",
        "2019/10/12 21:44:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "pip_mirror": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 11.071619033813477,
      "total_seconds": 11.308267593383789,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 259,
        "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": 258,
        "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": 2757,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1510,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2757
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:45:07 remove worker.pid",
        "2019/10/12 21:45:07 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.009918451309204,
      "total_seconds": 6.245717763900757,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 1494,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "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": 932,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1494
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:45:13 remove worker.pid",
        "2019/10/12 21:45:13 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "docker",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 20.858148336410522,
      "total_seconds": 22.28837752342224,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 952,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 270,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5203,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2470,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5203
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:45:35 Kill function: install3",
        "2019/10/12 21:45:35 Destroy() [SB 9]",
        "2019/10/12 21:45:35 Kill function: echo",
        "2019/10/12 21:45:35 Destroy() [SB 0]",
        "2019/10/12 21:45:35 Kill function: install",
        "2019/10/12 21:45:35 Destroy() [SB 6]",
        "2019/10/12 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:45:36 remove worker.pid",
        "2019/10/12 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.16931438446044922,
      "total_seconds": 0.3006439208984375,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 5,
        "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": 165,
        "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": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 165
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:45:36 remove worker.pid",
        "2019/10/12 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.7785947322845459,
      "total_seconds": 1.0112602710723877,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 73,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "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": 774,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 620,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 774
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:45:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:45:37 remove worker.pid",
        "2019/10/12 21:45:37 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "pip_mirror": "",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 49.52135634422302,
      "total_seconds": 49.76038336753845,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 101,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 9,
        "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": 9900,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 360,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "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": 33,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 6745,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9900
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:46:27 remove worker.pid",
        "2019/10/12 21:46:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "baseline": 0,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 5.229292869567871,
      "total_seconds": 5.352317571640015,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 143,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:46:32 remove worker.pid",
        "2019/10/12 21:46:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.163950443267822,
      "total_seconds": 10.400803804397583,
      "stats": {
        "sandboxes_per_sec": 46.4
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 929,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 0,
        "fork().cnt": 464,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:46:42 remove worker.pid",
        "2019/10/12 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.356487512588501,
      "total_seconds": 10.593980550765991,
      "stats": {
        "sandboxes_per_sec": 48.1
      },
      "ol-stats": {
        "Create().cnt": 482,
        "Create().ms-avg": 71,
        "Create()/acquire-cgroup.cnt": 482,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 482,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 481,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 482,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 963,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 482,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 482,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 482,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 481,
        "childExit().ms-avg": 48,
        "fork().cnt": 481,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 481,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 499,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 481,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:46:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:46:53 remove worker.pid",
        "2019/10/12 21:46:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.760083675384521,
      "total_seconds": 11.666544914245605,
      "stats": {
        "sandboxes_per_sec": 43.7
      },
      "ol-stats": {
        "Create().cnt": 470,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 470,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 470,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 469,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 470,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 470,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 470,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 470,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 469,
        "childExit().ms-avg": 0,
        "fork().cnt": 469,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 469,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 487,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 469,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:47:04 remove worker.pid",
        "2019/10/12 21:47:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 11.022449731826782,
      "total_seconds": 11.352264642715454,
      "stats": {
        "sandboxes_per_sec": 43.0
      },
      "ol-stats": {
        "Create().cnt": 463,
        "Create().ms-avg": 121,
        "Create()/acquire-cgroup.cnt": 463,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 463,
        "Create()/acquire-mem.ms-avg": 67,
        "Create()/fork-proc.cnt": 462,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 463,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 893,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 463,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 463,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 463,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 462,
        "childExit().ms-avg": 56,
        "fork().cnt": 462,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 462,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 480,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 462,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:47:16 remove worker.pid",
        "2019/10/12 21:47:16 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "pip_mirror": "",
        "sandbox": "sock",
        "registry": "/tmp/tmp0cink5by",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.033957004547119,
      "total_seconds": 6.273889780044556,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "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": 1697,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1700,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1697,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1696,
        "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": 4,
        "web-request.cnt": 1697,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:47:22 remove worker.pid",
        "2019/10/12 21:47:22 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.04402208328247,
      "total_seconds": 15.273752927780151,
      "stats": {
        "reqs_per_sec": 289.0
      },
      "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": 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": 4335,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4338,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4335,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4334,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4335,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:47:38 remove worker.pid",
        "2019/10/12 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.04651165008545,
      "total_seconds": 15.277741432189941,
      "stats": {
        "reqs_per_sec": 290.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4353,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3910,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4353,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3906,
        "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": 4353,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:47:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:47:53 remove worker.pid",
        "2019/10/12 21:47:53 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.065564155578613,
      "total_seconds": 15.296187400817871,
      "stats": {
        "reqs_per_sec": 269.46666666666664
      },
      "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": 5,
        "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": 4042,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3065,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4042,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3061,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 4042,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:48:08 remove worker.pid",
        "2019/10/12 21:48:08 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpljkjiqts",
        "pip_mirror": "",
        "sandbox": "sock",
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.726518392562866,
      "total_seconds": 3.155637502670288,
      "stats": {
        "reqs_per_sec": 36.67713821880429
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 4,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 56,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 4,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 64,
        "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": [
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:48:11 remove worker.pid",
        "2019/10/12 21:48:11 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmpm0hgclkh",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "sandbox_config": {},
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 41.990516901016235,
      "total_seconds": 42.56411528587341,
      "stats": {
        "reqs_per_sec": 23.814961778763085
      },
      "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": 132,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/12 21:48:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/12 21:48:54 remove worker.pid",
        "2019/10/12 21:48:54 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 317.3414611816406
}