{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 2.2556588649749756,
      "total_seconds": 2.593888282775879,
      "stats": {
        "pings_per_sec": 443.33389988017956
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:43:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:43:50 remove worker.pid",
        "2019/11/07 21:43:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 9.701873302459717,
      "total_seconds": 9.961926937103271,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 299,
        "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": 297,
        "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": 2415,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 48,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1216,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2415
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:00 remove worker.pid",
        "2019/11/07 21:44:00 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 6.084724426269531,
      "total_seconds": 6.3243019580841064,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1513,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 943,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1513
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:06 remove worker.pid",
        "2019/11/07 21:44:06 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "sandbox": "docker",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 18.200866222381592,
      "total_seconds": 19.324712991714478,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 803,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 253,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4537,
        "Pause().cnt": 4,
        "Pause().ms-avg": 26,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2205,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4537
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:25 Kill function: echo",
        "2019/11/07 21:44:25 Destroy() [SB 0]",
        "2019/11/07 21:44:25 Kill function: install",
        "2019/11/07 21:44:25 Destroy() [SB 6]",
        "2019/11/07 21:44:25 Kill function: install2",
        "2019/11/07 21:44:25 Destroy() [SB 7]",
        "2019/11/07 21:44:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:26 remove worker.pid",
        "2019/11/07 21:44:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 0.19812941551208496,
      "total_seconds": 0.4287264347076416,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 85,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 161,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 194,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "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": 194
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:26 remove worker.pid",
        "2019/11/07 21:44:26 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 0.8582262992858887,
      "total_seconds": 1.0926146507263184,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 854,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 690,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 854
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:27 remove worker.pid",
        "2019/11/07 21:44:27 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 30.32892346382141,
      "total_seconds": 30.56925678253174,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 176,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 83,
        "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": 6061,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 260,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3958,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6061
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:44:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:44:58 remove worker.pid",
        "2019/11/07 21:44:58 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 5.199253559112549,
      "total_seconds": 5.421121120452881,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 149,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 10,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:03 remove worker.pid",
        "2019/11/07 21:45:03 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 10.176118612289429,
      "total_seconds": 10.402528285980225,
      "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": 135,
        "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": [
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:13 remove worker.pid",
        "2019/11/07 21:45:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 10.386421918869019,
      "total_seconds": 10.721906423568726,
      "stats": {
        "sandboxes_per_sec": 44.6
      },
      "ol-stats": {
        "Create().cnt": 447,
        "Create().ms-avg": 100,
        "Create()/acquire-cgroup.cnt": 447,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 447,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 446,
        "Create()/fork-proc.ms-avg": 78,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 447,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 893,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 447,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 447,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 447,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 446,
        "childExit().ms-avg": 78,
        "fork().cnt": 446,
        "fork().ms-avg": 78,
        "forkRequest.cnt": 446,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 464,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 446,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:24 remove worker.pid",
        "2019/11/07 21:45:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 10.848970174789429,
      "total_seconds": 11.191760301589966,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 0,
        "fork().cnt": 461,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:35 remove worker.pid",
        "2019/11/07 21:45:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 11.058229923248291,
      "total_seconds": 11.40956163406372,
      "stats": {
        "sandboxes_per_sec": 41.0
      },
      "ol-stats": {
        "Create().cnt": 443,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 443,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 443,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 442,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 148,
        "Create()/make-root-fs.cnt": 443,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 853,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 443,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 443,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 443,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 442,
        "childExit().ms-avg": 54,
        "fork().cnt": 442,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 442,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 460,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 442,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:47 remove worker.pid",
        "2019/11/07 21:45:47 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 3000,
        "registry": "/tmp/tmp4knfp07b",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 6.032978057861328,
      "total_seconds": 6.272745132446289,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 52,
        "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": 178,
        "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": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1702,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1705,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1702,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1701,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1702,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:45:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:45:53 remove worker.pid",
        "2019/11/07 21:45:53 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 15.043518543243408,
      "total_seconds": 15.273483991622925,
      "stats": {
        "reqs_per_sec": 288.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4326,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4329,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4326,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4325,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4326,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:46:08 remove worker.pid",
        "2019/11/07 21:46:08 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 15.044189929962158,
      "total_seconds": 15.274574041366577,
      "stats": {
        "reqs_per_sec": 285.3333333333333
      },
      "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": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4280,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3860,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4280,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3856,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4280,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:46:24 remove worker.pid",
        "2019/11/07 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 15.06772518157959,
      "total_seconds": 15.29807162284851,
      "stats": {
        "reqs_per_sec": 254.46666666666667
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3817,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3003,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3817,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2999,
        "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": 3,
        "web-request.cnt": 3817,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:46:39 remove worker.pid",
        "2019/11/07 21:46:39 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmphe7ge251",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 2.9585976600646973,
      "total_seconds": 3.3999032974243164,
      "stats": {
        "reqs_per_sec": 33.80011557609024
      },
      "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": 137,
        "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": 2,
        "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": 10,
        "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": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "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": [
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:46:42 remove worker.pid",
        "2019/11/07 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "server_mode": "lambda",
        "sandbox_config": {},
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "registry": "/tmp/tmpz6owpy5t",
        "docker_runtime": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "mem_pool_mb": 500,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        }
      },
      "seconds": 43.84057664871216,
      "total_seconds": 44.39693021774292,
      "stats": {
        "reqs_per_sec": 22.809933709859216
      },
      "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": 137,
        "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": 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": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 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": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/07 21:47:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/07 21:47:27 remove worker.pid",
        "2019/11/07 21:47:27 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 286.1628613471985
}