{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "cgroups": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        }
      },
      "seconds": 2.2158281803131104,
      "total_seconds": 2.45121693611145,
      "stats": {
        "pings_per_sec": 451.30275442581427
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:20 remove worker.pid",
        "2019/12/07 21:44:20 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "cgroups": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        }
      },
      "seconds": 9.411715269088745,
      "total_seconds": 9.650235176086426,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 271,
        "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": 270,
        "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": 2341,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 49,
        "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": 1210,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2341
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:30 remove worker.pid",
        "2019/12/07 21:44:30 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 6.294219255447388,
      "total_seconds": 6.535300254821777,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 100,
        "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": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 7,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "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": 1565,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "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": 977,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1565
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:37 remove worker.pid",
        "2019/12/07 21:44:37 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "cgroups": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "sandbox": "docker",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        }
      },
      "seconds": 20.250560522079468,
      "total_seconds": 21.27606773376465,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 927,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 265,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5051,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2335,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5051
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:57 Kill function: install",
        "2019/12/07 21:44:57 Destroy() [SB 6]",
        "2019/12/07 21:44:57 Kill function: install2",
        "2019/12/07 21:44:57 Destroy() [SB 7]",
        "2019/12/07 21:44:58 Kill function: install3",
        "2019/12/07 21:44:58 Destroy() [SB 9]",
        "2019/12/07 21:44:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:58 remove worker.pid",
        "2019/12/07 21:44:58 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 0.18892574310302734,
      "total_seconds": 0.42194676399230957,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 82,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 147,
        "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": 185,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 185
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:58 remove worker.pid",
        "2019/12/07 21:44:58 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 0.8325722217559814,
      "total_seconds": 1.0682144165039062,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 828,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 668,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 828
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:44:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:44:59 remove worker.pid",
        "2019/12/07 21:44:59 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 46.63869786262512,
      "total_seconds": 46.876503229141235,
      "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": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 6,
        "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": 9324,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 259,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 6430,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9324
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:45:46 remove worker.pid",
        "2019/12/07 21:45:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "fork": false,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 5.166754961013794,
      "total_seconds": 5.291256427764893,
      "stats": {
        "sandboxes_per_sec": 5.8
      },
      "ol-stats": {
        "Create().cnt": 29,
        "Create().ms-avg": 154,
        "Create()/acquire-cgroup.cnt": 29,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 29,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 29,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 29,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 58,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 29,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 29,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 29,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 46,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:45:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:45:52 remove worker.pid",
        "2019/12/07 21:45:52 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 10.184479713439941,
      "total_seconds": 10.419142961502075,
      "stats": {
        "sandboxes_per_sec": 45.7
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 915,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 0,
        "fork().cnt": 457,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:02 remove worker.pid",
        "2019/12/07 21:46:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 10.396685361862183,
      "total_seconds": 10.624956607818604,
      "stats": {
        "sandboxes_per_sec": 46.3
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 61,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 927,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 61,
        "fork().cnt": 463,
        "fork().ms-avg": 61,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:13 remove worker.pid",
        "2019/12/07 21:46:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 10.77904200553894,
      "total_seconds": 11.136082172393799,
      "stats": {
        "sandboxes_per_sec": 43.4
      },
      "ol-stats": {
        "Create().cnt": 467,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 467,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 467,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 466,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 467,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 901,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 467,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 467,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 467,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 466,
        "childExit().ms-avg": 0,
        "fork().cnt": 466,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 466,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 484,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 466,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:24 remove worker.pid",
        "2019/12/07 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": ""
      },
      "seconds": 11.077746391296387,
      "total_seconds": 11.536148309707642,
      "stats": {
        "sandboxes_per_sec": 41.8
      },
      "ol-stats": {
        "Create().cnt": 451,
        "Create().ms-avg": 124,
        "Create()/acquire-cgroup.cnt": 451,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 451,
        "Create()/acquire-mem.ms-avg": 75,
        "Create()/fork-proc.cnt": 450,
        "Create()/fork-proc.ms-avg": 46,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 451,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 869,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 451,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 451,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 451,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 450,
        "childExit().ms-avg": 47,
        "fork().cnt": 450,
        "fork().ms-avg": 45,
        "forkRequest.cnt": 450,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 468,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 450,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:35 remove worker.pid",
        "2019/12/07 21:46:35 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 3000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "cgroups": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "registry": "/tmp/tmpk7a53uim",
        "docker_runtime": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        }
      },
      "seconds": 6.035742282867432,
      "total_seconds": 6.380831003189087,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1699,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1702,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1699,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1698,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1699,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:42 remove worker.pid",
        "2019/12/07 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 15.043673038482666,
      "total_seconds": 15.275983810424805,
      "stats": {
        "reqs_per_sec": 286.46666666666664
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4297,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4300,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4297,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4296,
        "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": 4297,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:46:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:46:57 remove worker.pid",
        "2019/12/07 21:46:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 15.047111511230469,
      "total_seconds": 15.27805781364441,
      "stats": {
        "reqs_per_sec": 286.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4303,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3916,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4303,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3912,
        "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": 1,
        "web-request.cnt": 4303,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:47:12 remove worker.pid",
        "2019/12/07 21:47:12 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 15.069617509841919,
      "total_seconds": 15.3015615940094,
      "stats": {
        "reqs_per_sec": 273.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 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": 4104,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3023,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4104,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3019,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 3,
        "web-request.cnt": 4104,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:47:27 remove worker.pid",
        "2019/12/07 21:47:27 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "cgroups": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "registry": "/tmp/tmpoqm5urcq",
        "docker_runtime": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        }
      },
      "seconds": 2.806411027908325,
      "total_seconds": 3.2434282302856445,
      "stats": {
        "reqs_per_sec": 35.63328951283122
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "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": 6,
        "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": 150,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 49,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 69,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:47:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:47:31 remove worker.pid",
        "2019/12/07 21:47:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "registry": "/tmp/tmp69z7059h",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "docker_runtime": ""
      },
      "seconds": 44.20113205909729,
      "total_seconds": 44.753657817840576,
      "stats": {
        "reqs_per_sec": 22.623868366030788
      },
      "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": 141,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 6,
        "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": 40,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "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": 40
      },
      "errors": [],
      "worker_tail": [
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/07 21:48:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/07 21:48:16 remove worker.pid",
        "2019/12/07 21:48:16 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 314.5370213985443
}