{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.1342923641204834,
      "total_seconds": 2.4304795265197754,
      "stats": {
        "pings_per_sec": 468.5437667361835
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:46:32 remove worker.pid",
        "2020/05/05 21:46:32 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 12.22145390510559,
      "total_seconds": 12.458296298980713,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 306,
        "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": 304,
        "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": 3045,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 69,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 15,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1608,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3045
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:46:44 remove worker.pid",
        "2020/05/05 21:46:44 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.198180913925171,
      "total_seconds": 6.434423923492432,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "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": 139,
        "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": 1541,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "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": 964,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1542
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:46:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:46:51 remove worker.pid",
        "2020/05/05 21:46:51 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "docker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 22.020872116088867,
      "total_seconds": 22.94323992729187,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 994,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 309,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5493,
        "Pause().cnt": 4,
        "Pause().ms-avg": 26,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2529,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5493
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:47:13 Kill function: echo",
        "2020/05/05 21:47:13 Destroy() [SB 0]",
        "2020/05/05 21:47:13 Kill function: install",
        "2020/05/05 21:47:13 Destroy() [SB 6]",
        "2020/05/05 21:47:13 Kill function: install2",
        "2020/05/05 21:47:13 Destroy() [SB 7]",
        "2020/05/05 21:47:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:47:14 remove worker.pid",
        "2020/05/05 21:47:14 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.18519949913024902,
      "total_seconds": 0.41642093658447266,
      "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 181,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 9,
        "web-request.cnt": 1,
        "web-request.ms-avg": 181
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:47:14 remove worker.pid",
        "2020/05/05 21:47:14 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.8337826728820801,
      "total_seconds": 1.0674502849578857,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 829,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 666,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 830
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:47:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:47:15 remove worker.pid",
        "2020/05/05 21:47:15 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 51.487030029296875,
      "total_seconds": 51.736719369888306,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 98,
        "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": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 10293,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 280,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 7103,
        "web-request.cnt": 5,
        "web-request.ms-avg": 10293
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:07 remove worker.pid",
        "2020/05/05 21:48:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 5.103316783905029,
      "total_seconds": 5.324042081832886,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 140,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:12 remove worker.pid",
        "2020/05/05 21:48:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.248117446899414,
      "total_seconds": 10.475365400314331,
      "stats": {
        "sandboxes_per_sec": 48.8
      },
      "ol-stats": {
        "Create().cnt": 489,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 489,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 489,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 488,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 489,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 977,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 489,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 489,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 489,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 488,
        "childExit().ms-avg": 0,
        "fork().cnt": 488,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 488,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 506,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 488,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:23 remove worker.pid",
        "2020/05/05 21:48:23 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.375195264816284,
      "total_seconds": 10.615404605865479,
      "stats": {
        "sandboxes_per_sec": 48.4
      },
      "ol-stats": {
        "Create().cnt": 485,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 485,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 485,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 484,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 485,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 969,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 485,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 485,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 485,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 484,
        "childExit().ms-avg": 53,
        "fork().cnt": 484,
        "fork().ms-avg": 56,
        "forkRequest.cnt": 484,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 502,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 484,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:33 remove worker.pid",
        "2020/05/05 21:48:33 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.784603834152222,
      "total_seconds": 11.120127439498901,
      "stats": {
        "sandboxes_per_sec": 48.7
      },
      "ol-stats": {
        "Create().cnt": 520,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 520,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 520,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 519,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 520,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1007,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 520,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 520,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 520,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 519,
        "childExit().ms-avg": 0,
        "fork().cnt": 519,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 519,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 537,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 519,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:44 remove worker.pid",
        "2020/05/05 21:48:44 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.999167919158936,
      "total_seconds": 11.347646713256836,
      "stats": {
        "sandboxes_per_sec": 44.6
      },
      "ol-stats": {
        "Create().cnt": 479,
        "Create().ms-avg": 109,
        "Create()/acquire-cgroup.cnt": 479,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 479,
        "Create()/acquire-mem.ms-avg": 61,
        "Create()/fork-proc.cnt": 478,
        "Create()/fork-proc.ms-avg": 44,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 159,
        "Create()/make-root-fs.cnt": 479,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 925,
        "Destroy().ms-avg": 37,
        "Destroy()/detach-root.cnt": 479,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 479,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 479,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 478,
        "childExit().ms-avg": 45,
        "fork().cnt": 478,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 478,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 496,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 478,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:48:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:48:56 remove worker.pid",
        "2020/05/05 21:48:56 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 3000,
        "registry": "/tmp/tmp27gpjpzj",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.033359050750732,
      "total_seconds": 6.275119781494141,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 66,
        "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": 233,
        "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": 1678,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1681,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1678,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1677,
        "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": 1678,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:49:02 remove worker.pid",
        "2020/05/05 21:49:02 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.041973114013672,
      "total_seconds": 15.273282289505005,
      "stats": {
        "reqs_per_sec": 286.26666666666665
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4294,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4297,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4294,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4293,
        "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": 4294,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:49:17 remove worker.pid",
        "2020/05/05 21:49:17 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.047651767730713,
      "total_seconds": 15.276867389678955,
      "stats": {
        "reqs_per_sec": 289.3333333333333
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 4340,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3979,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4340,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3975,
        "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": 4340,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:49:33 remove worker.pid",
        "2020/05/05 21:49:33 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.062603235244751,
      "total_seconds": 15.29434061050415,
      "stats": {
        "reqs_per_sec": 278.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4179,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2874,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4179,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2870,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 2,
        "web-request.cnt": 4179,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:49:48 remove worker.pid",
        "2020/05/05 21:49:48 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmpij__s97a",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "package": false,
          "evictor": false,
          "cgroups": false,
          "memory": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.724501371383667,
      "total_seconds": 3.161099672317505,
      "stats": {
        "reqs_per_sec": 36.70430116277869
      },
      "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": 141,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 55,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 65,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:49:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:49:51 remove worker.pid",
        "2020/05/05 21:49:51 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmp3xvb672z",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000",
        "pip_mirror": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 42.47462320327759,
      "total_seconds": 43.43197011947632,
      "stats": {
        "reqs_per_sec": 23.54348439756596
      },
      "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "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": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/05 21:50:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/05 21:50:34 remove worker.pid",
        "2020/05/05 21:50:34 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 330.1243760585785
}