{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {}
      },
      "seconds": 2.2510933876037598,
      "total_seconds": 2.677321195602417,
      "stats": {
        "pings_per_sec": 444.23261782537946
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:45:59 remove worker.pid",
        "2019/10/28 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {}
      },
      "seconds": 10.1432466506958,
      "total_seconds": 10.389034748077393,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 341,
        "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": 339,
        "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": 2525,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 50,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1266,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2525
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:46:09 remove worker.pid",
        "2019/10/28 21:46:09 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 5.889168739318848,
      "total_seconds": 6.126163721084595,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1464,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "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": 912,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1464
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:46:16 remove worker.pid",
        "2019/10/28 21:46:16 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "docker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {}
      },
      "seconds": 20.028474807739258,
      "total_seconds": 21.05432415008545,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 834,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 233,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4995,
        "Pause().cnt": 4,
        "Pause().ms-avg": 31,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2447,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4995
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:46:36 Kill function: install",
        "2019/10/28 21:46:36 Destroy() [SB 6]",
        "2019/10/28 21:46:36 Kill function: install2",
        "2019/10/28 21:46:36 Destroy() [SB 7]",
        "2019/10/28 21:46:36 Kill function: install3",
        "2019/10/28 21:46:36 Destroy() [SB 9]",
        "2019/10/28 21:46:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:46:37 remove worker.pid",
        "2019/10/28 21:46:37 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 0.196533203125,
      "total_seconds": 0.42877817153930664,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 81,
        "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": 18,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "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": 192,
        "Pause().cnt": 2,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 17,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 17,
        "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": 14,
        "web-request.cnt": 1,
        "web-request.ms-avg": 192
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:46:37 remove worker.pid",
        "2019/10/28 21:46:37 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 0.8220984935760498,
      "total_seconds": 1.0499403476715088,
      "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 818,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 658,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 818
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:46:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:46:38 remove worker.pid",
        "2019/10/28 21:46:38 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 32.8058066368103,
      "total_seconds": 33.18487811088562,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 341,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 168,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 234,
        "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": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 6557,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 250,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 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": 4039,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6557
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:47:11 remove worker.pid",
        "2019/10/28 21:47:11 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "fork": false,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock"
      },
      "seconds": 5.13902473449707,
      "total_seconds": 5.2616636753082275,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 149,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 7,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:47:17 remove worker.pid",
        "2019/10/28 21:47:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock"
      },
      "seconds": 10.17084550857544,
      "total_seconds": 10.397793054580688,
      "stats": {
        "sandboxes_per_sec": 46.2
      },
      "ol-stats": {
        "Create().cnt": 463,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 463,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 463,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 462,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 463,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 925,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 463,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 463,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 463,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 462,
        "childExit().ms-avg": 0,
        "fork().cnt": 462,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 462,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 480,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 462,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:47:27 remove worker.pid",
        "2019/10/28 21:47:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock"
      },
      "seconds": 10.456974506378174,
      "total_seconds": 10.68504548072815,
      "stats": {
        "sandboxes_per_sec": 47.0
      },
      "ol-stats": {
        "Create().cnt": 471,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 471,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 471,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 470,
        "Create()/fork-proc.ms-avg": 59,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 471,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 941,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 471,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 471,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 471,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 470,
        "childExit().ms-avg": 58,
        "fork().cnt": 470,
        "fork().ms-avg": 59,
        "forkRequest.cnt": 470,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 488,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 470,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:47:38 remove worker.pid",
        "2019/10/28 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock"
      },
      "seconds": 10.817184686660767,
      "total_seconds": 11.160017251968384,
      "stats": {
        "sandboxes_per_sec": 44.0
      },
      "ol-stats": {
        "Create().cnt": 473,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 473,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 473,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 472,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 473,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 913,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 473,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 473,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 473,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 472,
        "childExit().ms-avg": 0,
        "fork().cnt": 472,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 472,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 490,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 472,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:47:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:47:49 remove worker.pid",
        "2019/10/28 21:47:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock"
      },
      "seconds": 11.055884838104248,
      "total_seconds": 11.410239934921265,
      "stats": {
        "sandboxes_per_sec": 41.2
      },
      "ol-stats": {
        "Create().cnt": 445,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 445,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 445,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 444,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 161,
        "Create()/make-root-fs.cnt": 445,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 857,
        "Destroy().ms-avg": 45,
        "Destroy()/detach-root.cnt": 445,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 445,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 445,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 444,
        "childExit().ms-avg": 52,
        "fork().cnt": 444,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 444,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 462,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 444,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:00 remove worker.pid",
        "2019/10/28 21:48:00 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 3000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmpnjvpxmld",
        "sandbox_config": {}
      },
      "seconds": 6.0310282707214355,
      "total_seconds": 6.268716096878052,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1692,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1695,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1692,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1691,
        "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": 8,
        "web-request.cnt": 1692,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:06 remove worker.pid",
        "2019/10/28 21:48:06 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 15.042480707168579,
      "total_seconds": 15.393853664398193,
      "stats": {
        "reqs_per_sec": 285.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4278,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4281,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4278,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4277,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4278,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:22 remove worker.pid",
        "2019/10/28 21:48:22 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 15.044737339019775,
      "total_seconds": 15.275930643081665,
      "stats": {
        "reqs_per_sec": 284.1333333333333
      },
      "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": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 5,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4262,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3841,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4262,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3837,
        "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": 4262,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:37 remove worker.pid",
        "2019/10/28 21:48:37 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda"
      },
      "seconds": 15.066476106643677,
      "total_seconds": 15.299207210540771,
      "stats": {
        "reqs_per_sec": 268.3333333333333
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4025,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2867,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4025,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2863,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 4025,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:52 remove worker.pid",
        "2019/10/28 21:48:52 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmp9xr6tjb8",
        "sandbox_config": {}
      },
      "seconds": 2.701862335205078,
      "total_seconds": 3.161935567855835,
      "stats": {
        "reqs_per_sec": 37.01219081198808
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 67,
        "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": 23
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:48:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:48:56 remove worker.pid",
        "2019/10/28 21:48:56 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "package": false,
          "evictor": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmp1jcn4v2u",
        "server_mode": "lambda"
      },
      "seconds": 42.62151479721069,
      "total_seconds": 43.17810344696045,
      "stats": {
        "reqs_per_sec": 23.462346262148003
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "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": 979,
        "evict.ms-avg": 10,
        "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": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/28 21:49:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/28 21:49:39 remove worker.pid",
        "2019/10/28 21:49:39 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 311.11990308761597
}