{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        }
      },
      "seconds": 2.1838605403900146,
      "total_seconds": 2.5990898609161377,
      "stats": {
        "pings_per_sec": 457.9114962936858
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:52:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:52:58 remove worker.pid",
        "2021/04/28 21:52:58 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        }
      },
      "seconds": 18.83086133003235,
      "total_seconds": 19.07112717628479,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 729,
        "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": 727,
        "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": 4680,
        "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": 52,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1933,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4680
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:53:18 remove worker.pid",
        "2021/04/28 21:53:18 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 5.909027338027954,
      "total_seconds": 6.148752927780151,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "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": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 0,
        "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": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 915,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1469
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:53:24 remove worker.pid",
        "2021/04/28 21:53:24 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "docker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        }
      },
      "seconds": 26.15338659286499,
      "total_seconds": 27.279744148254395,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1227,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 399,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6527,
        "Pause().cnt": 4,
        "Pause().ms-avg": 31,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2997,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6527
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:53:50 Kill function: install3",
        "2021/04/28 21:53:50 Destroy() [SB 9]",
        "2021/04/28 21:53:51 Kill function: echo",
        "2021/04/28 21:53:51 Destroy() [SB 0]",
        "2021/04/28 21:53:51 Kill function: install",
        "2021/04/28 21:53:51 Destroy() [SB 6]",
        "2021/04/28 21:53:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:53:51 remove worker.pid",
        "2021/04/28 21:53:51 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 0.17707490921020508,
      "total_seconds": 0.4064762592315674,
      "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": 135,
        "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": 173,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "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": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 173
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:53:51 remove worker.pid",
        "2021/04/28 21:53:51 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 0.8368101119995117,
      "total_seconds": 1.0691547393798828,
      "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": 5,
        "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": 832,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 672,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 833
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:53:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:53:53 remove worker.pid",
        "2021/04/28 21:53:53 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 105.06427335739136,
      "total_seconds": 105.51241898536682,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 237,
        "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": 7,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 325,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 25,
        "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": 2,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 21008,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 1165,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 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": 7,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 12369,
        "web-request.cnt": 5,
        "web-request.ms-avg": 21008
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:55:38 remove worker.pid",
        "2021/04/28 21:55:38 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock"
      },
      "seconds": 5.085860252380371,
      "total_seconds": 5.308080196380615,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 140,
        "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": 135,
        "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": [
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:55:43 remove worker.pid",
        "2021/04/28 21:55:43 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock"
      },
      "seconds": 10.15609860420227,
      "total_seconds": 10.38338327407837,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 430,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 430,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 430,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 429,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 430,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 859,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 430,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 430,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 430,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 429,
        "childExit().ms-avg": 0,
        "fork().cnt": 429,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 429,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 447,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 429,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:55:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:55:54 remove worker.pid",
        "2021/04/28 21:55:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock"
      },
      "seconds": 10.421449184417725,
      "total_seconds": 10.65566086769104,
      "stats": {
        "sandboxes_per_sec": 41.9
      },
      "ol-stats": {
        "Create().cnt": 420,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 420,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 420,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 419,
        "Create()/fork-proc.ms-avg": 75,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 420,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 839,
        "Destroy().ms-avg": 59,
        "Destroy()/detach-root.cnt": 420,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 420,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 420,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 419,
        "childExit().ms-avg": 72,
        "fork().cnt": 419,
        "fork().ms-avg": 75,
        "forkRequest.cnt": 419,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 437,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 419,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:56:04 remove worker.pid",
        "2021/04/28 21:56:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock"
      },
      "seconds": 10.838002681732178,
      "total_seconds": 11.182525873184204,
      "stats": {
        "sandboxes_per_sec": 45.2
      },
      "ol-stats": {
        "Create().cnt": 485,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 485,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 485,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 484,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 485,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 937,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 485,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 485,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 485,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 484,
        "childExit().ms-avg": 0,
        "fork().cnt": 484,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 484,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 502,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 484,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:56:16 remove worker.pid",
        "2021/04/28 21:56:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock"
      },
      "seconds": 11.067000389099121,
      "total_seconds": 11.419328451156616,
      "stats": {
        "sandboxes_per_sec": 42.5
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 117,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 66,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 47,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 189,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 883,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 50,
        "fork().cnt": 457,
        "fork().ms-avg": 47,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:56:27 remove worker.pid",
        "2021/04/28 21:56:27 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 3000,
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/tmp/tmp348o8fm4",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        }
      },
      "seconds": 6.033545732498169,
      "total_seconds": 6.265945196151733,
      "stats": null,
      "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": 140,
        "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": 1710,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1713,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1710,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1709,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1710,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:56:34 remove worker.pid",
        "2021/04/28 21:56:34 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 15.0445077419281,
      "total_seconds": 15.275638818740845,
      "stats": {
        "reqs_per_sec": 288.3333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 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": 4325,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4328,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4325,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4324,
        "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": 4325,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:56:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:56:49 remove worker.pid",
        "2021/04/28 21:56:49 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 15.044766902923584,
      "total_seconds": 15.27435827255249,
      "stats": {
        "reqs_per_sec": 291.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 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": 4374,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3860,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4374,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3856,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4374,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:57:04 remove worker.pid",
        "2021/04/28 21:57:04 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock"
      },
      "seconds": 15.06243896484375,
      "total_seconds": 15.294044971466064,
      "stats": {
        "reqs_per_sec": 261.8
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3927,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3012,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3927,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3008,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4,
        "web-request.cnt": 3927,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:57:20 remove worker.pid",
        "2021/04/28 21:57:20 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/tmp/tmps1gcnge2",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        }
      },
      "seconds": 2.815516233444214,
      "total_seconds": 3.267740488052368,
      "stats": {
        "reqs_per_sec": 35.517850236806616
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "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": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "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": 24
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:57:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:57:23 remove worker.pid",
        "2021/04/28 21:57:23 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "registry": "/tmp/tmpii2970er",
        "sandbox": "sock"
      },
      "seconds": 45.16890001296997,
      "total_seconds": 45.727564096450806,
      "stats": {
        "reqs_per_sec": 22.139145040482852
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "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": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 981,
        "evict.ms-avg": 10,
        "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": 4,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/28 21:58:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/28 21:58:09 remove worker.pid",
        "2021/04/28 21:58:09 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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