{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 2.185767412185669,
      "total_seconds": 2.3953380584716797,
      "stats": {
        "pings_per_sec": 457.5095113958406
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:43:40 remove worker.pid",
        "2019/11/16 21:43:40 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 9.376153469085693,
      "total_seconds": 9.613613367080688,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 308,
        "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": 306,
        "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": 2334,
        "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": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1146,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2334
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:43:50 remove worker.pid",
        "2019/11/16 21:43:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 5.937463760375977,
      "total_seconds": 6.174616813659668,
      "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": 6,
        "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": 1476,
        "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": 6,
        "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": 920,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1476
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:43:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:43:56 remove worker.pid",
        "2019/11/16 21:43:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "docker",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 19.2581467628479,
      "total_seconds": 20.287754774093628,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 830,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 242,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4803,
        "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": 2354,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4803
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:44:16 Kill function: install2",
        "2019/11/16 21:44:16 Destroy() [SB 7]",
        "2019/11/16 21:44:16 Kill function: install3",
        "2019/11/16 21:44:16 Destroy() [SB 9]",
        "2019/11/16 21:44:16 Kill function: echo",
        "2019/11/16 21:44:16 Destroy() [SB 0]",
        "2019/11/16 21:44:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:44:17 remove worker.pid",
        "2019/11/16 21:44:17 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 0.173781156539917,
      "total_seconds": 0.4050467014312744,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 73,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 4,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 170,
        "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": 4,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 3,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 170
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:44:17 remove worker.pid",
        "2019/11/16 21:44:17 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 0.8231806755065918,
      "total_seconds": 1.0533440113067627,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 819,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 660,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 819
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:44:18 remove worker.pid",
        "2019/11/16 21:44:18 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 26.886489152908325,
      "total_seconds": 27.152844429016113,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 115,
        "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": 178,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 5373,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 371,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3538,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5373
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:44:45 remove worker.pid",
        "2019/11/16 21:44:45 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 5.135946989059448,
      "total_seconds": 5.3574206829071045,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 142,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:44:51 remove worker.pid",
        "2019/11/16 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 10.25491213798523,
      "total_seconds": 10.489134550094604,
      "stats": {
        "sandboxes_per_sec": 44.4
      },
      "ol-stats": {
        "Create().cnt": 445,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 445,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 445,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 444,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 445,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 889,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 445,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 445,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 445,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 444,
        "childExit().ms-avg": 0,
        "fork().cnt": 444,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 444,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 462,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 444,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:01 remove worker.pid",
        "2019/11/16 21:45:01 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 10.370343208312988,
      "total_seconds": 10.605480194091797,
      "stats": {
        "sandboxes_per_sec": 46.6
      },
      "ol-stats": {
        "Create().cnt": 467,
        "Create().ms-avg": 79,
        "Create()/acquire-cgroup.cnt": 467,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 467,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 466,
        "Create()/fork-proc.ms-avg": 58,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 467,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 933,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 467,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 467,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 467,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 466,
        "childExit().ms-avg": 56,
        "fork().cnt": 466,
        "fork().ms-avg": 58,
        "forkRequest.cnt": 466,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 484,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 466,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:12 remove worker.pid",
        "2019/11/16 21:45:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 10.75555944442749,
      "total_seconds": 11.094985008239746,
      "stats": {
        "sandboxes_per_sec": 45.3
      },
      "ol-stats": {
        "Create().cnt": 486,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 486,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 486,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 485,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 486,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 939,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 486,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 486,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 486,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 485,
        "childExit().ms-avg": 0,
        "fork().cnt": 485,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 485,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 503,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 485,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:23 remove worker.pid",
        "2019/11/16 21:45:23 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 10.943516969680786,
      "total_seconds": 11.39998483657837,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 124,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 71,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 51,
        "fork().cnt": 449,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:34 remove worker.pid",
        "2019/11/16 21:45:34 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "registry": "/tmp/tmp_fnfieh7",
        "registry_cache_ms": 3000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 6.031047105789185,
      "total_seconds": 6.275486707687378,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1686,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1689,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1686,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1685,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1686,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:40 remove worker.pid",
        "2019/11/16 21:45:40 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 15.043522596359253,
      "total_seconds": 15.275676488876343,
      "stats": {
        "reqs_per_sec": 288.26666666666665
      },
      "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": 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": 4324,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4327,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4324,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4323,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4324,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:45:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:45:56 remove worker.pid",
        "2019/11/16 21:45:56 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 15.048298358917236,
      "total_seconds": 15.277925252914429,
      "stats": {
        "reqs_per_sec": 293.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4405,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3894,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4405,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3890,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4405,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:46:11 remove worker.pid",
        "2019/11/16 21:46:11 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 15.062211036682129,
      "total_seconds": 15.29319953918457,
      "stats": {
        "reqs_per_sec": 269.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "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": 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": 4045,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3004,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4045,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3000,
        "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": 4045,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:46:26 remove worker.pid",
        "2019/11/16 21:46:26 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "registry": "/tmp/tmph_0lci4i",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 2.728928565979004,
      "total_seconds": 3.19976806640625,
      "stats": {
        "reqs_per_sec": 36.64474169906923
      },
      "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": 138,
        "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": 65,
        "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": [
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:46:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:46:29 remove worker.pid",
        "2019/11/16 21:46:29 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "docker_runtime": "",
        "import_cache_tree": "",
        "registry": "/tmp/tmp5utuktkc",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        }
      },
      "seconds": 41.89983797073364,
      "total_seconds": 42.44835066795349,
      "stats": {
        "reqs_per_sec": 23.866460840474403
      },
      "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": 154,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/16 21:47:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/16 21:47:12 remove worker.pid",
        "2019/11/16 21:47:12 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 277.6963038444519
}