{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 2.1984808444976807,
      "total_seconds": 2.402059316635132,
      "stats": {
        "pings_per_sec": 454.86403544255364
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:44:38 remove worker.pid",
        "2019/09/04 21:44:38 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 9.634183645248413,
      "total_seconds": 9.872289657592773,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 284,
        "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": 282,
        "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": 2394,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 62,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 10,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1244,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2394
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:44:48 remove worker.pid",
        "2019/09/04 21:44:48 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 6.3173675537109375,
      "total_seconds": 6.554043292999268,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 95,
        "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": 142,
        "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": 1571,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 61,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 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": 970,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1571
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:44:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:44:54 remove worker.pid",
        "2019/09/04 21:44:54 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "docker",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 21.625778436660767,
      "total_seconds": 23.753810167312622,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 984,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 332,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5395,
        "Pause().cnt": 4,
        "Pause().ms-avg": 264,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2565,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5395
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:45:17 Kill function: echo",
        "2019/09/04 21:45:17 Destroy() [SB 0]",
        "2019/09/04 21:45:17 Kill function: install",
        "2019/09/04 21:45:17 Destroy() [SB 6]",
        "2019/09/04 21:45:18 Kill function: install2",
        "2019/09/04 21:45:18 Destroy() [SB 7]",
        "2019/09/04 21:45:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:45:18 remove worker.pid",
        "2019/09/04 21:45:18 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 0.18165850639343262,
      "total_seconds": 0.41327810287475586,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 79,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 177,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 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": 177
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:45:18 remove worker.pid",
        "2019/09/04 21:45:18 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 0.8614828586578369,
      "total_seconds": 1.094102144241333,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 857,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 696,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 857
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:45:19 remove worker.pid",
        "2019/09/04 21:45:19 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 28.99863338470459,
      "total_seconds": 29.252664804458618,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 122,
        "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": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 182,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 7,
        "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": 5795,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 296,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "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": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3883,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5795
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:45:49 remove worker.pid",
        "2019/09/04 21:45:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "baseline": 0,
        "fork": false
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 5.11220908164978,
      "total_seconds": 5.334402322769165,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 146,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 5,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:45:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:45:54 remove worker.pid",
        "2019/09/04 21:45:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.175629377365112,
      "total_seconds": 10.408819675445557,
      "stats": {
        "sandboxes_per_sec": 43.0
      },
      "ol-stats": {
        "Create().cnt": 431,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 431,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 431,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 430,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 431,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 861,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 431,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 431,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 431,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 430,
        "childExit().ms-avg": 0,
        "fork().cnt": 430,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 430,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 448,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 430,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:04 remove worker.pid",
        "2019/09/04 21:46:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.366334438323975,
      "total_seconds": 10.601362943649292,
      "stats": {
        "sandboxes_per_sec": 45.1
      },
      "ol-stats": {
        "Create().cnt": 452,
        "Create().ms-avg": 84,
        "Create()/acquire-cgroup.cnt": 452,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 452,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 451,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 452,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 903,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 452,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 452,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 452,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 451,
        "childExit().ms-avg": 55,
        "fork().cnt": 451,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 451,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 469,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 451,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:15 remove worker.pid",
        "2019/09/04 21:46:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.788580656051636,
      "total_seconds": 11.12453317642212,
      "stats": {
        "sandboxes_per_sec": 42.4
      },
      "ol-stats": {
        "Create().cnt": 457,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 457,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 457,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 456,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 457,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 881,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 457,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 457,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 457,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 456,
        "childExit().ms-avg": 0,
        "fork().cnt": 456,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 456,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 474,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 456,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:26 remove worker.pid",
        "2019/09/04 21:46:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "sandbox_config": {},
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 11.108939409255981,
      "total_seconds": 11.457387924194336,
      "stats": {
        "sandboxes_per_sec": 40.5
      },
      "ol-stats": {
        "Create().cnt": 438,
        "Create().ms-avg": 123,
        "Create()/acquire-cgroup.cnt": 438,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 438,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 437,
        "Create()/fork-proc.ms-avg": 46,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 187,
        "Create()/make-root-fs.cnt": 438,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 843,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 438,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 438,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 438,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 437,
        "childExit().ms-avg": 50,
        "fork().cnt": 437,
        "fork().ms-avg": 46,
        "forkRequest.cnt": 437,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 455,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 437,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:38 remove worker.pid",
        "2019/09/04 21:46:38 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmp4tp9q32h",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 6.031283617019653,
      "total_seconds": 6.278710126876831,
      "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": 143,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 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": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1697,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:44 remove worker.pid",
        "2019/09/04 21:46:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.040273904800415,
      "total_seconds": 15.272283554077148,
      "stats": {
        "reqs_per_sec": 289.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4337,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4340,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4337,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4336,
        "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": 4337,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:46:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:46:59 remove worker.pid",
        "2019/09/04 21:46:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.046817541122437,
      "total_seconds": 15.277135848999023,
      "stats": {
        "reqs_per_sec": 282.4
      },
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "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": 4236,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3864,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4236,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3860,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4236,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:47:14 remove worker.pid",
        "2019/09/04 21:47:14 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.06256628036499,
      "total_seconds": 15.293952703475952,
      "stats": {
        "reqs_per_sec": 254.6
      },
      "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": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3819,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2943,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3819,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2939,
        "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": 4,
        "web-request.cnt": 3819,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:47:30 remove worker.pid",
        "2019/09/04 21:47:30 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmphra9ku23",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 2.815324068069458,
      "total_seconds": 3.2670974731445312,
      "stats": {
        "reqs_per_sec": 35.52034679708707
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "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": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 52,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:47:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:47:33 remove worker.pid",
        "2019/09/04 21:47:33 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmpqm03yzrf",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 43.45208787918091,
      "total_seconds": 44.00253915786743,
      "stats": {
        "reqs_per_sec": 23.013869004697508
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/04 21:48:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/04 21:48:17 remove worker.pid",
        "2019/09/04 21:48:17 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 289.0141134262085
}