{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 2.128809690475464,
      "total_seconds": 2.3621015548706055,
      "stats": {
        "pings_per_sec": 469.75123244762415
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:46:22 remove worker.pid",
        "2019/10/05 21:46:22 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 14.141339778900146,
      "total_seconds": 14.376991271972656,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 493,
        "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": 491,
        "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": 3525,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 94,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 161,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1493,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3525
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:46:36 remove worker.pid",
        "2019/10/05 21:46:36 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 6.275883913040161,
      "total_seconds": 6.509203195571899,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 85,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 127,
        "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": 0,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1510,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 39,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 949,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1510
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:46:42 remove worker.pid",
        "2019/10/05 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "sandbox": "docker",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 27.59194278717041,
      "total_seconds": 31.120948314666748,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1451,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 610,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6887,
        "Pause().cnt": 4,
        "Pause().ms-avg": 217,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2792,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6887
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:47:12 Kill function: install",
        "2019/10/05 21:47:12 Destroy() [SB 6]",
        "2019/10/05 21:47:13 Kill function: install2",
        "2019/10/05 21:47:13 Destroy() [SB 7]",
        "2019/10/05 21:47:13 Kill function: install3",
        "2019/10/05 21:47:13 Destroy() [SB 9]",
        "2019/10/05 21:47:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:47:13 remove worker.pid",
        "2019/10/05 21:47:13 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 0.16943955421447754,
      "total_seconds": 0.2970094680786133,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 166,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 10,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 166
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:47:14 remove worker.pid",
        "2019/10/05 21:47:14 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 0.6933884620666504,
      "total_seconds": 0.9234292507171631,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 67,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 120,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 3,
        "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": 690,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 545,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 690
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:47:15 remove worker.pid",
        "2019/10/05 21:47:15 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 32.024139404296875,
      "total_seconds": 32.27203416824341,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 167,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 130,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 84,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 6401,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 333,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4145,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6401
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:47:47 remove worker.pid",
        "2019/10/05 21:47:47 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 5,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 5.168150424957275,
      "total_seconds": 5.388481616973877,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 143,
        "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": 4,
        "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": [
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:47:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:47:52 remove worker.pid",
        "2019/10/05 21:47:52 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 10.231520652770996,
      "total_seconds": 10.46858024597168,
      "stats": {
        "sandboxes_per_sec": 47.4
      },
      "ol-stats": {
        "Create().cnt": 475,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 475,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 475,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 474,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 129,
        "Create()/make-root-fs.cnt": 475,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 949,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 475,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 475,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 475,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 474,
        "childExit().ms-avg": 0,
        "fork().cnt": 474,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 474,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 492,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 474,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:03 remove worker.pid",
        "2019/10/05 21:48:03 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 10.364071369171143,
      "total_seconds": 10.60512113571167,
      "stats": {
        "sandboxes_per_sec": 49.7
      },
      "ol-stats": {
        "Create().cnt": 498,
        "Create().ms-avg": 62,
        "Create()/acquire-cgroup.cnt": 498,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 498,
        "Create()/acquire-mem.ms-avg": 20,
        "Create()/fork-proc.cnt": 497,
        "Create()/fork-proc.ms-avg": 39,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 124,
        "Create()/make-root-fs.cnt": 498,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 995,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 498,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 498,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 498,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 497,
        "childExit().ms-avg": 37,
        "fork().cnt": 497,
        "fork().ms-avg": 39,
        "forkRequest.cnt": 497,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 515,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 497,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:13 remove worker.pid",
        "2019/10/05 21:48:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 10.702044248580933,
      "total_seconds": 11.052230596542358,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 0,
        "fork().cnt": 453,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:24 remove worker.pid",
        "2019/10/05 21:48:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 10.934510707855225,
      "total_seconds": 11.276941537857056,
      "stats": {
        "sandboxes_per_sec": 46.1
      },
      "ol-stats": {
        "Create().cnt": 494,
        "Create().ms-avg": 110,
        "Create()/acquire-cgroup.cnt": 494,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 494,
        "Create()/acquire-mem.ms-avg": 64,
        "Create()/fork-proc.cnt": 493,
        "Create()/fork-proc.ms-avg": 43,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 169,
        "Create()/make-root-fs.cnt": 494,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 955,
        "Destroy().ms-avg": 39,
        "Destroy()/detach-root.cnt": 494,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 494,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 494,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 493,
        "childExit().ms-avg": 45,
        "fork().cnt": 493,
        "fork().ms-avg": 43,
        "forkRequest.cnt": 493,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 511,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 493,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:36 remove worker.pid",
        "2019/10/05 21:48:36 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmptye829bh",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 6.028828144073486,
      "total_seconds": 6.177636384963989,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 38,
        "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": 123,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1867,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1870,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1867,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1866,
        "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": 1867,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:42 remove worker.pid",
        "2019/10/05 21:48:42 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 15.041321039199829,
      "total_seconds": 15.311781406402588,
      "stats": {
        "reqs_per_sec": 316.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 39,
        "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": 123,
        "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": 4743,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4746,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4743,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4742,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4743,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:48:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:48:57 remove worker.pid",
        "2019/10/05 21:48:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 15.040433645248413,
      "total_seconds": 15.269736051559448,
      "stats": {
        "reqs_per_sec": 304.93333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 39,
        "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": 123,
        "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": 4574,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4116,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4574,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4112,
        "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": 4574,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:49:13 remove worker.pid",
        "2019/10/05 21:49:13 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 15.057717084884644,
      "total_seconds": 15.61536979675293,
      "stats": {
        "reqs_per_sec": 308.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 40,
        "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": 125,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 10,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4629,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3284,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4629,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3280,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 4629,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:49:28 remove worker.pid",
        "2019/10/05 21:49:28 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmpf6aouyjp",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 2.664444923400879,
      "total_seconds": 2.9859468936920166,
      "stats": {
        "reqs_per_sec": 37.5315447039527
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 21,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 56,
        "evict.ms-avg": 8,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 67,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:49:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:49:31 remove worker.pid",
        "2019/10/05 21:49:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry": "/tmp/tmp7cy1tppb",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        }
      },
      "seconds": 38.34279823303223,
      "total_seconds": 38.96282148361206,
      "stats": {
        "reqs_per_sec": 26.080533511585067
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 127,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1983,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 34,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 982,
        "evict.ms-avg": 9,
        "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": 1,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 35
      },
      "errors": [],
      "worker_tail": [
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/05 21:50:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/05 21:50:10 remove worker.pid",
        "2019/10/05 21:50:10 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 350.1743130683899
}