{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        }
      },
      "seconds": 2.1984505653381348,
      "total_seconds": 2.4811854362487793,
      "stats": {
        "pings_per_sec": 454.8698563522299
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:43:23 remove worker.pid",
        "2020/05/31 21:43:23 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        }
      },
      "seconds": 10.111433506011963,
      "total_seconds": 10.348960161209106,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 245,
        "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": 243,
        "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": 2515,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 159,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 9,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1296,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2515
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:43:33 remove worker.pid",
        "2020/05/31 21:43:33 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.274684429168701,
      "total_seconds": 6.515297174453735,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1560,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 975,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1560
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:43:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:43:39 remove worker.pid",
        "2020/05/31 21:43:39 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "sandbox": "docker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        }
      },
      "seconds": 21.44346857070923,
      "total_seconds": 22.57083296775818,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1005,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 260,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5349,
        "Pause().cnt": 4,
        "Pause().ms-avg": 58,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2398,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5349
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:01 Kill function: install2",
        "2020/05/31 21:44:01 Destroy() [SB 7]",
        "2020/05/31 21:44:02 Kill function: install3",
        "2020/05/31 21:44:02 Destroy() [SB 9]",
        "2020/05/31 21:44:02 Kill function: echo",
        "2020/05/31 21:44:02 Destroy() [SB 0]",
        "2020/05/31 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:02 remove worker.pid",
        "2020/05/31 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.1923677921295166,
      "total_seconds": 0.42500853538513184,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 84,
        "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": 12,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 146,
        "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": 188,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 12,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 12,
        "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": 188
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:02 remove worker.pid",
        "2020/05/31 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.8769073486328125,
      "total_seconds": 1.111591100692749,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 873,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 711,
        "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": 873
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:04 remove worker.pid",
        "2020/05/31 21:44:04 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 31.6559956073761,
      "total_seconds": 32.04878330230713,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 174,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 79,
        "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": 6326,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 295,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4116,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6326
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:36 remove worker.pid",
        "2020/05/31 21:44:36 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "seconds": 5,
        "fork": false
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 5.131355047225952,
      "total_seconds": 5.353215932846069,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 151,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:41 remove worker.pid",
        "2020/05/31 21:44:41 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.181844472885132,
      "total_seconds": 10.408589839935303,
      "stats": {
        "sandboxes_per_sec": 44.2
      },
      "ol-stats": {
        "Create().cnt": 443,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 443,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 443,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 442,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 443,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 885,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 443,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 443,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 443,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 442,
        "childExit().ms-avg": 0,
        "fork().cnt": 442,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 442,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 460,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 442,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:44:51 remove worker.pid",
        "2020/05/31 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.363276720046997,
      "total_seconds": 10.598676919937134,
      "stats": {
        "sandboxes_per_sec": 44.9
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 73,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 899,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 49,
        "fork().cnt": 449,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:45:02 remove worker.pid",
        "2020/05/31 21:45:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.860820770263672,
      "total_seconds": 11.309024572372437,
      "stats": {
        "sandboxes_per_sec": 44.0
      },
      "ol-stats": {
        "Create().cnt": 473,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 473,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 473,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 472,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 473,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 913,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 473,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 473,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 473,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 472,
        "childExit().ms-avg": 0,
        "fork().cnt": 472,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 472,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 490,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 472,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:45:13 remove worker.pid",
        "2020/05/31 21:45:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 11.110077619552612,
      "total_seconds": 11.488295316696167,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 129,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 78,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 46,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 156,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 51,
        "fork().cnt": 449,
        "fork().ms-avg": 46,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:45:25 remove worker.pid",
        "2020/05/31 21:45:25 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 3000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpndt1k2f9",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        }
      },
      "seconds": 6.029282331466675,
      "total_seconds": 6.374531269073486,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 47,
        "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": 153,
        "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": 1676,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1679,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1676,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1675,
        "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": 1676,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:45:31 remove worker.pid",
        "2020/05/31 21:45:31 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.042473077774048,
      "total_seconds": 15.273287057876587,
      "stats": {
        "reqs_per_sec": 287.06666666666666
      },
      "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": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4306,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4309,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4306,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4305,
        "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": 4306,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:45:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:45:46 remove worker.pid",
        "2020/05/31 21:45:46 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.047403573989868,
      "total_seconds": 15.28072714805603,
      "stats": {
        "reqs_per_sec": 286.1333333333333
      },
      "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": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4292,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3837,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4292,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3833,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4292,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:46:02 remove worker.pid",
        "2020/05/31 21:46:02 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.065996646881104,
      "total_seconds": 15.299432516098022,
      "stats": {
        "reqs_per_sec": 256.8
      },
      "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": 8,
        "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": 5,
        "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": 3852,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3009,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3852,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3005,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 3852,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:46:17 remove worker.pid",
        "2020/05/31 21:46:17 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpm2r21l4g",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        }
      },
      "seconds": 2.8692026138305664,
      "total_seconds": 3.312270164489746,
      "stats": {
        "reqs_per_sec": 34.85333493322422
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 56,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 69,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:46:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:46:20 remove worker.pid",
        "2020/05/31 21:46:20 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "import_cache_tree": "",
        "sandbox": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "docker_runtime": "",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp5qpv1ol2",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 44.01264214515686,
      "total_seconds": 44.56309938430786,
      "stats": {
        "reqs_per_sec": 22.720759338829623
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 40,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 40
      },
      "errors": [],
      "worker_tail": [
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/31 21:47:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/31 21:47:05 remove worker.pid",
        "2020/05/31 21:47:05 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 304.8522729873657
}