{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 2.2051215171813965,
      "total_seconds": 2.3914999961853027,
      "stats": {
        "pings_per_sec": 453.4939642317154
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:42:39 remove worker.pid",
        "2020/06/02 21:42:39 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 9.747638702392578,
      "total_seconds": 9.985718011856079,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 279,
        "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": 277,
        "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": 2426,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 78,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1235,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2426
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:42:48 remove worker.pid",
        "2020/06/02 21:42:48 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.099573373794556,
      "total_seconds": 6.342701435089111,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1517,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 947,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1517
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:42:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:42:55 remove worker.pid",
        "2020/06/02 21:42:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "docker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 19.758530139923096,
      "total_seconds": 20.78632140159607,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 899,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 231,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4928,
        "Pause().cnt": 4,
        "Pause().ms-avg": 26,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2295,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4928
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:43:15 Kill function: install",
        "2020/06/02 21:43:15 Destroy() [SB 6]",
        "2020/06/02 21:43:15 Kill function: install2",
        "2020/06/02 21:43:15 Destroy() [SB 7]",
        "2020/06/02 21:43:15 Kill function: install3",
        "2020/06/02 21:43:15 Destroy() [SB 9]",
        "2020/06/02 21:43:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:43:16 remove worker.pid",
        "2020/06/02 21:43:16 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.18108820915222168,
      "total_seconds": 0.41361069679260254,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "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": 138,
        "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": 177,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "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": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 177
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:43:16 remove worker.pid",
        "2020/06/02 21:43:16 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.8445234298706055,
      "total_seconds": 1.0748143196105957,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "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": 840,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 680,
        "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": 840
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:43:17 remove worker.pid",
        "2020/06/02 21:43:17 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 28.495706796646118,
      "total_seconds": 28.757612943649292,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 150,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 154,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 52,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5695,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 312,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3703,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5695
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:43:46 remove worker.pid",
        "2020/06/02 21:43:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 5,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 5.1615283489227295,
      "total_seconds": 5.284187316894531,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:43:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:43:51 remove worker.pid",
        "2020/06/02 21:43:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.245625734329224,
      "total_seconds": 10.47933316230774,
      "stats": {
        "sandboxes_per_sec": 45.0
      },
      "ol-stats": {
        "Create().cnt": 451,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 451,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 451,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 450,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 451,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 901,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 451,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 451,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 451,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 450,
        "childExit().ms-avg": 0,
        "fork().cnt": 450,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 450,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 468,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 450,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:02 remove worker.pid",
        "2020/06/02 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.355040550231934,
      "total_seconds": 10.589112520217896,
      "stats": {
        "sandboxes_per_sec": 46.1
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 923,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 57,
        "fork().cnt": 461,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:12 remove worker.pid",
        "2020/06/02 21:44:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.788158893585205,
      "total_seconds": 11.123568058013916,
      "stats": {
        "sandboxes_per_sec": 44.4
      },
      "ol-stats": {
        "Create().cnt": 477,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 477,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 477,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 476,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 477,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 921,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 477,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 477,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 477,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 476,
        "childExit().ms-avg": 0,
        "fork().cnt": 476,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 476,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 494,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 476,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:23 remove worker.pid",
        "2020/06/02 21:44:23 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 11.092600345611572,
      "total_seconds": 11.443599700927734,
      "stats": {
        "sandboxes_per_sec": 42.0
      },
      "ol-stats": {
        "Create().cnt": 453,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 453,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 453,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 452,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 177,
        "Create()/make-root-fs.cnt": 453,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 873,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 453,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 453,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 453,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 452,
        "childExit().ms-avg": 55,
        "fork().cnt": 452,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 452,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 470,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 452,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:35 remove worker.pid",
        "2020/06/02 21:44:35 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "registry_cache_ms": 3000,
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/tmp/tmp4m0xa1a6",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.0301737785339355,
      "total_seconds": 6.279705286026001,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 47,
        "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": 154,
        "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": 1709,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1712,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1709,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1708,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1709,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:41 remove worker.pid",
        "2020/06/02 21:44:41 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.042869806289673,
      "total_seconds": 15.272939205169678,
      "stats": {
        "reqs_per_sec": 284.73333333333335
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4271,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4274,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4271,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4270,
        "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": 4271,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:44:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:44:56 remove worker.pid",
        "2020/06/02 21:44:56 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.045134544372559,
      "total_seconds": 15.27578091621399,
      "stats": {
        "reqs_per_sec": 286.6666666666667
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4300,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3843,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4300,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3839,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4300,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:45:12 remove worker.pid",
        "2020/06/02 21:45:12 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.064329862594604,
      "total_seconds": 15.295967102050781,
      "stats": {
        "reqs_per_sec": 264.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 3960,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3030,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3960,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3026,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3960,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:45:27 remove worker.pid",
        "2020/06/02 21:45:27 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/tmp/tmpzy2hj20c",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 2.8031933307647705,
      "total_seconds": 3.2455954551696777,
      "stats": {
        "reqs_per_sec": 35.673943714441336
      },
      "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": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 57,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:45:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:45:30 remove worker.pid",
        "2020/06/02 21:45:30 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "registry": "/tmp/tmptg9yv220",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 42.16903519630432,
      "total_seconds": 42.739750146865845,
      "stats": {
        "reqs_per_sec": 23.71410993340448
      },
      "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": 135,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/02 21:46:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/02 21:46:13 remove worker.pid",
        "2020/06/02 21:46:13 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 281.83705615997314
}