{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 2.349656105041504,
      "total_seconds": 2.6610593795776367,
      "stats": {
        "pings_per_sec": 425.59816866022396
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:48:36 remove worker.pid",
        "2021/04/22 21:48:36 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 14.537681102752686,
      "total_seconds": 14.77756381034851,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 585,
        "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": 583,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "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": 3622,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 124,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 29,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1480,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3622
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:48:50 remove worker.pid",
        "2021/04/22 21:48:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 5.911424160003662,
      "total_seconds": 6.153479337692261,
      "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": 6,
        "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": 3,
        "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": 1469,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 913,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1469
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:48:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:48:56 remove worker.pid",
        "2021/04/22 21:48:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "sandbox": "docker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 23.552934885025024,
      "total_seconds": 25.280624628067017,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1361,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 384,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5875,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2228,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5875
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:49:20 Kill function: install",
        "2021/04/22 21:49:20 Destroy() [SB 6]",
        "2021/04/22 21:49:21 Kill function: install2",
        "2021/04/22 21:49:21 Destroy() [SB 7]",
        "2021/04/22 21:49:22 Kill function: install3",
        "2021/04/22 21:49:22 Destroy() [SB 9]",
        "2021/04/22 21:49:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:49:22 remove worker.pid",
        "2021/04/22 21:49:22 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 0.1880171298980713,
      "total_seconds": 0.42418527603149414,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 184,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "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": 10,
        "web-request.cnt": 1,
        "web-request.ms-avg": 184
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:49:22 remove worker.pid",
        "2021/04/22 21:49:22 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 0.8683671951293945,
      "total_seconds": 1.101114273071289,
      "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": 8,
        "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": 864,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 697,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "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": 6,
        "web-request.cnt": 1,
        "web-request.ms-avg": 864
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:49:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:49:23 remove worker.pid",
        "2021/04/22 21:49:23 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 48.69639992713928,
      "total_seconds": 48.96495318412781,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 113,
        "Create()/acquire-cgroup.cnt": 14,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 14,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 165,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9735,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 553,
        "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": 31,
        "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": 29,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 5692,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9735
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:50:12 remove worker.pid",
        "2021/04/22 21:50:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "baseline": 0,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 5.056342363357544,
      "total_seconds": 5.181671857833862,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 143,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:50:18 remove worker.pid",
        "2021/04/22 21:50:18 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.262014150619507,
      "total_seconds": 10.490960836410522,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 418,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 418,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 418,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 417,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 418,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 835,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 418,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 418,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 418,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 417,
        "childExit().ms-avg": 0,
        "fork().cnt": 417,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 417,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 435,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 417,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:50:28 remove worker.pid",
        "2021/04/22 21:50:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.405183792114258,
      "total_seconds": 10.64247989654541,
      "stats": {
        "sandboxes_per_sec": 43.3
      },
      "ol-stats": {
        "Create().cnt": 434,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 434,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 434,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 433,
        "Create()/fork-proc.ms-avg": 70,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 434,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 434,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 434,
        "Destroy()/kill-procs.ms-avg": 17,
        "Destroy()/remove-root.cnt": 434,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 433,
        "childExit().ms-avg": 75,
        "fork().cnt": 433,
        "fork().ms-avg": 70,
        "forkRequest.cnt": 433,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 451,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 433,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:50:39 remove worker.pid",
        "2021/04/22 21:50:39 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 10.853894233703613,
      "total_seconds": 11.189974784851074,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 461,
        "childExit().ms-avg": 0,
        "fork().cnt": 461,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:50:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:50:50 remove worker.pid",
        "2021/04/22 21:50:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 11.292028665542603,
      "total_seconds": 11.742650032043457,
      "stats": {
        "sandboxes_per_sec": 39.6
      },
      "ol-stats": {
        "Create().cnt": 429,
        "Create().ms-avg": 137,
        "Create()/acquire-cgroup.cnt": 429,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 429,
        "Create()/acquire-mem.ms-avg": 78,
        "Create()/fork-proc.cnt": 428,
        "Create()/fork-proc.ms-avg": 55,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 320,
        "Create()/make-root-fs.cnt": 429,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 825,
        "Destroy().ms-avg": 54,
        "Destroy()/detach-root.cnt": 429,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 429,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 429,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 428,
        "childExit().ms-avg": 61,
        "fork().cnt": 428,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 428,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 446,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 428,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:01 remove worker.pid",
        "2021/04/22 21:51:01 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 3000,
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/tmp/tmpcxymejq7",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 6.036658048629761,
      "total_seconds": 6.2793848514556885,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 54,
        "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": 182,
        "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": 1637,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1640,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1637,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1636,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 1637,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:08 remove worker.pid",
        "2021/04/22 21:51:08 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.043798208236694,
      "total_seconds": 15.277732372283936,
      "stats": {
        "reqs_per_sec": 278.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "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": 4183,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4186,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4183,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4182,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4183,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:23 remove worker.pid",
        "2021/04/22 21:51:23 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.045437812805176,
      "total_seconds": 15.276422023773193,
      "stats": {
        "reqs_per_sec": 279.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4194,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3816,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4194,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3812,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4194,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:38 remove worker.pid",
        "2021/04/22 21:51:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 15.070200443267822,
      "total_seconds": 15.302996158599854,
      "stats": {
        "reqs_per_sec": 260.46666666666664
      },
      "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": 1,
        "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": 3907,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2892,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3907,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2888,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 3907,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:54 remove worker.pid",
        "2021/04/22 21:51:54 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "registry": "/tmp/tmp90d1zf0r",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "docker_runtime": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 3.087071180343628,
      "total_seconds": 3.5293257236480713,
      "stats": {
        "reqs_per_sec": 32.393495758644086
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 27,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 7,
        "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": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "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": 27
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:51:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:51:57 remove worker.pid",
        "2021/04/22 21:51:57 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox_config": {},
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/tmp/tmp5ghcc10d",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "mem_pool_mb": 500
      },
      "seconds": 45.942402839660645,
      "total_seconds": 46.502121448516846,
      "stats": {
        "reqs_per_sec": 21.76639704099755
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 981,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/22 21:52:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/22 21:52:44 remove worker.pid",
        "2021/04/22 21:52:44 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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