{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 2.2288899421691895,
      "total_seconds": 3.307497024536133,
      "stats": {
        "pings_per_sec": 448.65852907147894
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:47:40 remove worker.pid",
        "2020/01/25 21:47:40 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 11.498479843139648,
      "total_seconds": 11.737317323684692,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 405,
        "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": 403,
        "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": 2854,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 59,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1326,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2854
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:47:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:47:52 remove worker.pid",
        "2020/01/25 21:47:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 7.448911428451538,
      "total_seconds": 7.687560796737671,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 202,
        "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": 5,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 110,
        "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": 1854,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 4,
        "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": 972,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1854
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:48:00 remove worker.pid",
        "2020/01/25 21:48:00 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "sandbox": "docker",
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 25.706612825393677,
      "total_seconds": 26.73904323577881,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1170,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 328,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6415,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3016,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6415
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:48:26 Kill function: install",
        "2020/01/25 21:48:26 Destroy() [SB 6]",
        "2020/01/25 21:48:26 Kill function: install2",
        "2020/01/25 21:48:26 Destroy() [SB 7]",
        "2020/01/25 21:48:26 Kill function: install3",
        "2020/01/25 21:48:26 Destroy() [SB 9]",
        "2020/01/25 21:48:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:48:26 remove worker.pid",
        "2020/01/25 21:48:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 0.2244870662689209,
      "total_seconds": 0.45699095726013184,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 95,
        "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": 175,
        "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": 220,
        "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": 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": 12,
        "web-request.cnt": 1,
        "web-request.ms-avg": 220
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:48:27 remove worker.pid",
        "2020/01/25 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 0.8533010482788086,
      "total_seconds": 1.0861871242523193,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 849,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 688,
        "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": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 849
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:48:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:48:28 remove worker.pid",
        "2020/01/25 21:48:28 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 78.04304504394531,
      "total_seconds": 78.26403713226318,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 137,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 195,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 14,
        "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": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 15604,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 1076,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 84,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 10239,
        "web-request.cnt": 5,
        "web-request.ms-avg": 15604
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:49:46 remove worker.pid",
        "2020/01/25 21:49:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": false,
        "baseline": 0,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 5.094116449356079,
      "total_seconds": 5.417442798614502,
      "stats": {
        "sandboxes_per_sec": 5.2
      },
      "ol-stats": {
        "Create().cnt": 26,
        "Create().ms-avg": 146,
        "Create()/acquire-cgroup.cnt": 26,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 26,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 26,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 26,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 52,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 26,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 26,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 26,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 43,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:49:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:49:52 remove worker.pid",
        "2020/01/25 21:49:52 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 10.355267763137817,
      "total_seconds": 10.602553129196167,
      "stats": {
        "sandboxes_per_sec": 43.2
      },
      "ol-stats": {
        "Create().cnt": 433,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 433,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 433,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 432,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 433,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 865,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 433,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 433,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 433,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 432,
        "childExit().ms-avg": 0,
        "fork().cnt": 432,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 432,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 450,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 432,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:02 remove worker.pid",
        "2020/01/25 21:50:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 10.364484548568726,
      "total_seconds": 10.591309309005737,
      "stats": {
        "sandboxes_per_sec": 41.8
      },
      "ol-stats": {
        "Create().cnt": 419,
        "Create().ms-avg": 81,
        "Create()/acquire-cgroup.cnt": 419,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 419,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 418,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 419,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 837,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 419,
        "Destroy()/detach-root.ms-avg": 4,
        "Destroy()/kill-procs.cnt": 419,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 419,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 418,
        "childExit().ms-avg": 62,
        "fork().cnt": 418,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 418,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 436,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 418,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:13 remove worker.pid",
        "2020/01/25 21:50:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 10.846005201339722,
      "total_seconds": 11.1940336227417,
      "stats": {
        "sandboxes_per_sec": 43.1
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 895,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 0,
        "fork().cnt": 463,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:24 remove worker.pid",
        "2020/01/25 21:50:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 11.076499938964844,
      "total_seconds": 11.424922466278076,
      "stats": {
        "sandboxes_per_sec": 41.6
      },
      "ol-stats": {
        "Create().cnt": 449,
        "Create().ms-avg": 120,
        "Create()/acquire-cgroup.cnt": 449,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 449,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 448,
        "Create()/fork-proc.ms-avg": 48,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 449,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 865,
        "Destroy().ms-avg": 45,
        "Destroy()/detach-root.cnt": 449,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 449,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 449,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 448,
        "childExit().ms-avg": 53,
        "fork().cnt": 448,
        "fork().ms-avg": 48,
        "forkRequest.cnt": 448,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 466,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 448,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:35 remove worker.pid",
        "2020/01/25 21:50:35 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpihypj00i",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 6.02978777885437,
      "total_seconds": 6.2744221687316895,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 1662,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1665,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1662,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1661,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1662,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:42 remove worker.pid",
        "2020/01/25 21:50:42 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 15.041751861572266,
      "total_seconds": 15.273507118225098,
      "stats": {
        "reqs_per_sec": 284.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4269,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4272,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4269,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4268,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4269,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:50:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:50:57 remove worker.pid",
        "2020/01/25 21:50:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 15.044321775436401,
      "total_seconds": 15.275592803955078,
      "stats": {
        "reqs_per_sec": 272.3333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 4085,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3688,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4085,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3684,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4085,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:51:12 remove worker.pid",
        "2020/01/25 21:51:12 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 15.065284490585327,
      "total_seconds": 15.29538631439209,
      "stats": {
        "reqs_per_sec": 254.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3819,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2987,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3819,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2983,
        "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": 4,
        "web-request.cnt": 3819,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:51:28 remove worker.pid",
        "2020/01/25 21:51:28 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpq80n7y28",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "pip_mirror": "",
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 2.7867307662963867,
      "total_seconds": 3.2492644786834717,
      "stats": {
        "reqs_per_sec": 35.884624492997446
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 6,
        "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 156,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 55,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:51:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:51:31 remove worker.pid",
        "2020/01/25 21:51:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "import_cache_tree": "",
        "registry": "/tmp/tmpcnjjjw60",
        "server_mode": "lambda",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 43.57071542739868,
      "total_seconds": 44.11822199821472,
      "stats": {
        "reqs_per_sec": 22.951209009035068
      },
      "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": 1983,
        "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": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 982,
        "evict.ms-avg": 11,
        "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": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/25 21:52:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/25 21:52:15 remove worker.pid",
        "2020/01/25 21:52:15 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 411.9057734012604
}