{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 2.201096296310425,
      "total_seconds": 2.6283724308013916,
      "stats": {
        "pings_per_sec": 454.323193619399
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:05 remove worker.pid",
        "2019/11/17 21:46:05 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 9.140331506729126,
      "total_seconds": 9.373405694961548,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 294,
        "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": 293,
        "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": 2274,
        "Pause().cnt": 4,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 9,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1146,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2274
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:15 remove worker.pid",
        "2019/11/17 21:46:15 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 5.717517614364624,
      "total_seconds": 5.953298807144165,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 89,
        "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": 134,
        "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": 1421,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 41,
        "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": 885,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1421
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:21 remove worker.pid",
        "2019/11/17 21:46:21 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "docker",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 19.882787942886353,
      "total_seconds": 20.907387733459473,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 795,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 300,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4960,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2460,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4960
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:41 Kill function: install",
        "2019/11/17 21:46:41 Destroy() [SB 6]",
        "2019/11/17 21:46:41 Kill function: install2",
        "2019/11/17 21:46:41 Destroy() [SB 7]",
        "2019/11/17 21:46:42 Kill function: install3",
        "2019/11/17 21:46:42 Destroy() [SB 9]",
        "2019/11/17 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:42 remove worker.pid",
        "2019/11/17 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 0.19749808311462402,
      "total_seconds": 0.42757320404052734,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 85,
        "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": 155,
        "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": 193,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "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": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 193
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:42 remove worker.pid",
        "2019/11/17 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 0.7854437828063965,
      "total_seconds": 1.0186688899993896,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "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": 134,
        "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": 781,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 624,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 781
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:46:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:46:43 remove worker.pid",
        "2019/11/17 21:46:43 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 50.70589637756348,
      "total_seconds": 50.97280025482178,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 169,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 80,
        "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": 10137,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 235,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 6874,
        "web-request.cnt": 5,
        "web-request.ms-avg": 10137
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:47:34 remove worker.pid",
        "2019/11/17 21:47:34 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "baseline": 0,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 5.117157459259033,
      "total_seconds": 5.23796010017395,
      "stats": {
        "sandboxes_per_sec": 6.6
      },
      "ol-stats": {
        "Create().cnt": 33,
        "Create().ms-avg": 137,
        "Create()/acquire-cgroup.cnt": 33,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 33,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 33,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 33,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 66,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 33,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 33,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 33,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 50,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:47:40 remove worker.pid",
        "2019/11/17 21:47:40 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 10.142932891845703,
      "total_seconds": 10.367777109146118,
      "stats": {
        "sandboxes_per_sec": 45.8
      },
      "ol-stats": {
        "Create().cnt": 459,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 459,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 459,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 458,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 130,
        "Create()/make-root-fs.cnt": 459,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 917,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 459,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 459,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 459,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 458,
        "childExit().ms-avg": 0,
        "fork().cnt": 458,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 458,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 476,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 458,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:47:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:47:50 remove worker.pid",
        "2019/11/17 21:47:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 10.382331609725952,
      "total_seconds": 10.618165969848633,
      "stats": {
        "sandboxes_per_sec": 49.0
      },
      "ol-stats": {
        "Create().cnt": 491,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 491,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 491,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 490,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 491,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 981,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 491,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 491,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 491,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 490,
        "childExit().ms-avg": 54,
        "fork().cnt": 490,
        "fork().ms-avg": 56,
        "forkRequest.cnt": 490,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 508,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 490,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:48:00 remove worker.pid",
        "2019/11/17 21:48:00 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 10.742114067077637,
      "total_seconds": 11.075649499893188,
      "stats": {
        "sandboxes_per_sec": 40.8
      },
      "ol-stats": {
        "Create().cnt": 441,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 441,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 441,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 440,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 441,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 849,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 441,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 441,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 441,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 440,
        "childExit().ms-avg": 0,
        "fork().cnt": 440,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 440,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 458,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 440,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:48:12 remove worker.pid",
        "2019/11/17 21:48:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 11.069132566452026,
      "total_seconds": 11.416201829910278,
      "stats": {
        "sandboxes_per_sec": 41.2
      },
      "ol-stats": {
        "Create().cnt": 445,
        "Create().ms-avg": 127,
        "Create()/acquire-cgroup.cnt": 445,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 445,
        "Create()/acquire-mem.ms-avg": 75,
        "Create()/fork-proc.cnt": 444,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 196,
        "Create()/make-root-fs.cnt": 445,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 857,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 445,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 445,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 445,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 444,
        "childExit().ms-avg": 53,
        "fork().cnt": 444,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 444,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 462,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 444,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:48:23 remove worker.pid",
        "2019/11/17 21:48:23 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 3000,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry": "/tmp/tmp5fbhrmlh",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 6.029407024383545,
      "total_seconds": 6.373542785644531,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 48,
        "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": 156,
        "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": 1706,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1709,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1706,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1705,
        "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": 3,
        "web-request.cnt": 1706,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:48:29 remove worker.pid",
        "2019/11/17 21:48:29 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 15.04236364364624,
      "total_seconds": 15.273097276687622,
      "stats": {
        "reqs_per_sec": 285.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4278,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4281,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4278,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4277,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 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": 4278,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:48:45 remove worker.pid",
        "2019/11/17 21:48:45 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 15.045064210891724,
      "total_seconds": 15.275964498519897,
      "stats": {
        "reqs_per_sec": 288.8
      },
      "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": 135,
        "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": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4332,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3969,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4332,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3965,
        "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": 4332,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:49:00 remove worker.pid",
        "2019/11/17 21:49:00 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 15.06184983253479,
      "total_seconds": 15.291756629943848,
      "stats": {
        "reqs_per_sec": 277.73333333333335
      },
      "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": 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": 4166,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3039,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4166,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3035,
        "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": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 4166,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:49:15 remove worker.pid",
        "2019/11/17 21:49:15 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpcy4d55yd",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 2.4627490043640137,
      "total_seconds": 2.889510154724121,
      "stats": {
        "reqs_per_sec": 40.60539278755664
      },
      "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": 129,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "Destroy().ms-avg": 3,
        "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": 21,
        "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": 63,
        "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": 1,
        "web-request.cnt": 100,
        "web-request.ms-avg": 21
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:49:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:49:18 remove worker.pid",
        "2019/11/17 21:49:18 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "registry": "/tmp/tmprkn5der2",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        }
      },
      "seconds": 42.501559019088745,
      "total_seconds": 43.05253982543945,
      "stats": {
        "reqs_per_sec": 23.52857797270913
      },
      "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": 129,
        "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": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/17 21:50:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/17 21:50:01 remove worker.pid",
        "2019/11/17 21:50:01 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 342.97268772125244
}