{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        }
      },
      "seconds": 2.241534471511841,
      "total_seconds": 2.5157582759857178,
      "stats": {
        "pings_per_sec": 446.12742343496836
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:43:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:43:57 remove worker.pid",
        "2019/09/29 21:43:57 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        }
      },
      "seconds": 9.841921329498291,
      "total_seconds": 10.081646919250488,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 263,
        "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": 262,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "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": 2450,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 47,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1307,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2450
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:44:07 remove worker.pid",
        "2019/09/29 21:44:07 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 6.283143520355225,
      "total_seconds": 6.520630359649658,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 95,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "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": 1562,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "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": 5,
        "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": 975,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1562
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:44:14 remove worker.pid",
        "2019/09/29 21:44:14 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "docker",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        }
      },
      "seconds": 21.549257278442383,
      "total_seconds": 22.673393487930298,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 977,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 293,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5373,
        "Pause().cnt": 4,
        "Pause().ms-avg": 53,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2601,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5373
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:44:36 Kill function: echo",
        "2019/09/29 21:44:36 Destroy() [SB 0]",
        "2019/09/29 21:44:36 Kill function: install",
        "2019/09/29 21:44:36 Destroy() [SB 6]",
        "2019/09/29 21:44:36 Kill function: install2",
        "2019/09/29 21:44:36 Destroy() [SB 7]",
        "2019/09/29 21:44:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:44:36 remove worker.pid",
        "2019/09/29 21:44:36 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 0.20045852661132812,
      "total_seconds": 0.4342217445373535,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 88,
        "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": 9,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 156,
        "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": 196,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 9,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 9,
        "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": 196
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:44:37 remove worker.pid",
        "2019/09/29 21:44:37 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 0.9101362228393555,
      "total_seconds": 1.1445655822753906,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "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": 1,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 905,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 735,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 906
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:44:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:44:38 remove worker.pid",
        "2019/09/29 21:44:38 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 31.215656042099,
      "total_seconds": 31.468586921691895,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 99,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 153,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 6238,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 280,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4222,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6238
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:10 remove worker.pid",
        "2019/09/29 21:45:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "seconds": 5,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 5.097290754318237,
      "total_seconds": 5.321281671524048,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 152,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 147,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:15 remove worker.pid",
        "2019/09/29 21:45:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 10.2643301486969,
      "total_seconds": 10.493886232376099,
      "stats": {
        "sandboxes_per_sec": 41.9
      },
      "ol-stats": {
        "Create().cnt": 420,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 420,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 420,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 419,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 420,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 839,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 420,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 420,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 420,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 419,
        "childExit().ms-avg": 0,
        "fork().cnt": 419,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 419,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 437,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 419,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:25 remove worker.pid",
        "2019/09/29 21:45:25 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 10.382475137710571,
      "total_seconds": 10.6127188205719,
      "stats": {
        "sandboxes_per_sec": 43.9
      },
      "ol-stats": {
        "Create().cnt": 440,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 440,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 440,
        "Create()/acquire-mem.ms-avg": 20,
        "Create()/fork-proc.cnt": 439,
        "Create()/fork-proc.ms-avg": 55,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 440,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 879,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 440,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 440,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 440,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 439,
        "childExit().ms-avg": 53,
        "fork().cnt": 439,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 439,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 457,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 439,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:36 remove worker.pid",
        "2019/09/29 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 10.863483905792236,
      "total_seconds": 11.211307048797607,
      "stats": {
        "sandboxes_per_sec": 41.3
      },
      "ol-stats": {
        "Create().cnt": 446,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 446,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 446,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 445,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 446,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 859,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 446,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 446,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 446,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 445,
        "childExit().ms-avg": 0,
        "fork().cnt": 445,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 445,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 463,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 445,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:47 remove worker.pid",
        "2019/09/29 21:45:47 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 11.034654140472412,
      "total_seconds": 11.39846134185791,
      "stats": {
        "sandboxes_per_sec": 38.1
      },
      "ol-stats": {
        "Create().cnt": 414,
        "Create().ms-avg": 106,
        "Create()/acquire-cgroup.cnt": 414,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 414,
        "Create()/acquire-mem.ms-avg": 75,
        "Create()/fork-proc.cnt": 413,
        "Create()/fork-proc.ms-avg": 26,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 200,
        "Create()/make-root-fs.cnt": 414,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 795,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 414,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 414,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 414,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 413,
        "childExit().ms-avg": 23,
        "fork().cnt": 413,
        "fork().ms-avg": 26,
        "forkRequest.cnt": 413,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 431,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 413,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:45:59 remove worker.pid",
        "2019/09/29 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 3000,
        "worker_port": "5000",
        "registry": "/tmp/tmpp11qerof",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        }
      },
      "seconds": 6.031132698059082,
      "total_seconds": 6.276949167251587,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 54,
        "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": 186,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1658,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1661,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1658,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1657,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1658,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:46:05 remove worker.pid",
        "2019/09/29 21:46:05 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 15.044444799423218,
      "total_seconds": 15.278523683547974,
      "stats": {
        "reqs_per_sec": 281.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 4223,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4226,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4223,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4222,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "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": 4223,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:46:20 remove worker.pid",
        "2019/09/29 21:46:20 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 15.050489902496338,
      "total_seconds": 15.281778812408447,
      "stats": {
        "reqs_per_sec": 283.2
      },
      "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": 141,
        "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": 4248,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3930,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4248,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3926,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4248,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:46:35 remove worker.pid",
        "2019/09/29 21:46:35 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 15.067636251449585,
      "total_seconds": 15.300596952438354,
      "stats": {
        "reqs_per_sec": 244.26666666666668
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 9,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3664,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2879,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3664,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2875,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 9,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 8,
        "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": 5,
        "web-request.cnt": 3664,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:46:51 remove worker.pid",
        "2019/09/29 21:46:51 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/tmp/tmpadbp7zan",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        }
      },
      "seconds": 3.014248847961426,
      "total_seconds": 3.4583804607391357,
      "stats": {
        "reqs_per_sec": 33.17635689097896
      },
      "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": 142,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 152,
        "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": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 51,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:46:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:46:54 remove worker.pid",
        "2019/09/29 21:46:54 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/tmp/tmp60yo5801",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "import_cache_tree": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        }
      },
      "seconds": 46.08613896369934,
      "total_seconds": 46.655799865722656,
      "stats": {
        "reqs_per_sec": 21.69852417015304
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "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": 139,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/29 21:47:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/29 21:47:41 remove worker.pid",
        "2019/09/29 21:47:41 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 290.02746868133545
}