{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 2.2700905799865723,
      "total_seconds": 2.3771281242370605,
      "stats": {
        "pings_per_sec": 440.5171636951943
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:47:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:47:45 remove worker.pid",
        "2021/01/26 21:47:45 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 16.61309003829956,
      "total_seconds": 16.856963396072388,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 874,
        "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": 872,
        "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": 4139,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 111,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 15,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1358,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4139
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:48:02 remove worker.pid",
        "2021/01/26 21:48:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 6.029639005661011,
      "total_seconds": 6.266571998596191,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 1499,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "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": 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": 932,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1499
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:48:08 remove worker.pid",
        "2021/01/26 21:48:08 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "import_cache_tree": "",
        "sandbox_config": {}
      },
      "seconds": 19.56067156791687,
      "total_seconds": 20.588597297668457,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1050,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 329,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4879,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2047,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4879
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:48:28 Kill function: install",
        "2021/01/26 21:48:28 Destroy() [SB 6]",
        "2021/01/26 21:48:28 Kill function: install2",
        "2021/01/26 21:48:28 Destroy() [SB 7]",
        "2021/01/26 21:48:28 Kill function: install3",
        "2021/01/26 21:48:28 Destroy() [SB 9]",
        "2021/01/26 21:48:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:48:29 remove worker.pid",
        "2021/01/26 21:48:29 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 0.18349981307983398,
      "total_seconds": 0.41704559326171875,
      "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": 3,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 179,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 3,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 2,
        "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": 179
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:48:29 remove worker.pid",
        "2021/01/26 21:48:29 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 0.8428704738616943,
      "total_seconds": 1.0752835273742676,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "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": 839,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 675,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 839
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:48:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:48:30 remove worker.pid",
        "2021/01/26 21:48:30 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 84.17488598823547,
      "total_seconds": 84.4273087978363,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 154,
        "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": 8,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 222,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 16831,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 572,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 7,
        "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": 3,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 10130,
        "web-request.cnt": 5,
        "web-request.ms-avg": 16831
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:49:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:49:54 remove worker.pid",
        "2021/01/26 21:49:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "baseline": 0,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 5.152641296386719,
      "total_seconds": 5.374851703643799,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 141,
        "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": 136,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:00 remove worker.pid",
        "2021/01/26 21:50:00 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 10.170989990234375,
      "total_seconds": 10.397994041442871,
      "stats": {
        "sandboxes_per_sec": 41.6
      },
      "ol-stats": {
        "Create().cnt": 417,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 417,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 417,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 416,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 417,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 833,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 417,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 417,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 417,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 416,
        "childExit().ms-avg": 0,
        "fork().cnt": 416,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 416,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 434,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 416,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:10 remove worker.pid",
        "2021/01/26 21:50:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 10.333884000778198,
      "total_seconds": 10.568804264068604,
      "stats": {
        "sandboxes_per_sec": 44.2
      },
      "ol-stats": {
        "Create().cnt": 443,
        "Create().ms-avg": 89,
        "Create()/acquire-cgroup.cnt": 443,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 443,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 442,
        "Create()/fork-proc.ms-avg": 67,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 443,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 885,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 443,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 443,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 443,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 442,
        "childExit().ms-avg": 69,
        "fork().cnt": 442,
        "fork().ms-avg": 67,
        "forkRequest.cnt": 442,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 460,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 442,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:21 remove worker.pid",
        "2021/01/26 21:50:21 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 10.824140787124634,
      "total_seconds": 11.168317317962646,
      "stats": {
        "sandboxes_per_sec": 46.2
      },
      "ol-stats": {
        "Create().cnt": 495,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 495,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 495,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 494,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 495,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 957,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 495,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 495,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 495,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 494,
        "childExit().ms-avg": 0,
        "fork().cnt": 494,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 494,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 512,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 494,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:32 remove worker.pid",
        "2021/01/26 21:50:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 10.943550825119019,
      "total_seconds": 11.64108681678772,
      "stats": {
        "sandboxes_per_sec": 40.9
      },
      "ol-stats": {
        "Create().cnt": 442,
        "Create().ms-avg": 132,
        "Create()/acquire-cgroup.cnt": 442,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 442,
        "Create()/acquire-mem.ms-avg": 78,
        "Create()/fork-proc.cnt": 441,
        "Create()/fork-proc.ms-avg": 49,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 442,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 851,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 442,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 442,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 442,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 441,
        "childExit().ms-avg": 53,
        "fork().cnt": 441,
        "fork().ms-avg": 49,
        "forkRequest.cnt": 441,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 459,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 441,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:44 remove worker.pid",
        "2021/01/26 21:50:44 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/tmp/tmpuu9u9kfg",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "registry_cache_ms": 3000,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 6.0312254428863525,
      "total_seconds": 6.373043060302734,
      "stats": null,
      "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": 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": 1672,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1675,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1672,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1671,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1672,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:50:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:50:50 remove worker.pid",
        "2021/01/26 21:50:50 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.048200130462646,
      "total_seconds": 15.280428409576416,
      "stats": {
        "reqs_per_sec": 282.46666666666664
      },
      "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": 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": 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": 4237,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4240,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4237,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4236,
        "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": 4237,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:51:05 remove worker.pid",
        "2021/01/26 21:51:05 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.04607629776001,
      "total_seconds": 15.279014110565186,
      "stats": {
        "reqs_per_sec": 284.8
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4272,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3992,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4272,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3988,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4272,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:51:21 remove worker.pid",
        "2021/01/26 21:51:21 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.068645715713501,
      "total_seconds": 15.30037784576416,
      "stats": {
        "reqs_per_sec": 269.0
      },
      "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": 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": 4035,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3016,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4035,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3012,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 4035,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:51:36 remove worker.pid",
        "2021/01/26 21:51:36 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/tmp/tmphrxpkoav",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        }
      },
      "seconds": 2.883669137954712,
      "total_seconds": 3.3409674167633057,
      "stats": {
        "reqs_per_sec": 34.6792464218432
      },
      "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": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "Destroy().ms-avg": 5,
        "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": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 4,
        "evict.cnt": 57,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 64,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:51:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:51:39 remove worker.pid",
        "2021/01/26 21:51:39 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "registry": "/tmp/tmpn8gjwvnj",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "worker_port": "5000",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 43.74293088912964,
      "total_seconds": 44.29567265510559,
      "stats": {
        "reqs_per_sec": 22.860849662349448
      },
      "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": 1983,
        "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": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 982,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/26 21:52:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/26 21:52:24 remove worker.pid",
        "2021/01/26 21:52:24 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 384.3641519546509
}