{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 2.2721855640411377,
      "total_seconds": 2.9343392848968506,
      "stats": {
        "pings_per_sec": 440.1097487422
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:05 remove worker.pid",
        "2020/06/28 21:45:05 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 15.963440895080566,
      "total_seconds": 16.20472478866577,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 389,
        "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": 387,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3933,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 72,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 12,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2062,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3933
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:21 remove worker.pid",
        "2020/06/28 21:45:21 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.314033508300781,
      "total_seconds": 6.5551252365112305,
      "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": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1570,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 5,
        "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": 981,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1570
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:27 remove worker.pid",
        "2020/06/28 21:45:27 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox": "docker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 24.500088453292847,
      "total_seconds": 25.524522066116333,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1079,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 310,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6111,
        "Pause().cnt": 4,
        "Pause().ms-avg": 33,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2807,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6111
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:52 Kill function: install",
        "2020/06/28 21:45:52 Destroy() [SB 6]",
        "2020/06/28 21:45:53 Kill function: install2",
        "2020/06/28 21:45:53 Destroy() [SB 7]",
        "2020/06/28 21:45:53 Kill function: install3",
        "2020/06/28 21:45:53 Destroy() [SB 9]",
        "2020/06/28 21:45:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:53 remove worker.pid",
        "2020/06/28 21:45:53 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.18650269508361816,
      "total_seconds": 0.4252328872680664,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 80,
        "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": 9,
        "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": 182,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 14,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 9,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 182
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:53 remove worker.pid",
        "2020/06/28 21:45:53 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.8764998912811279,
      "total_seconds": 1.1128487586975098,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 872,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 707,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 872
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:45:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:45:55 remove worker.pid",
        "2020/06/28 21:45:55 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 47.66384220123291,
      "total_seconds": 47.91965961456299,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 125,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 168,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 19,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9528,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 371,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 6471,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9528
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:46:42 remove worker.pid",
        "2020/06/28 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": false,
        "baseline": 0,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 5.11912727355957,
      "total_seconds": 5.343288898468018,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 145,
        "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": 140,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:46:48 remove worker.pid",
        "2020/06/28 21:46:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.159786701202393,
      "total_seconds": 10.388635635375977,
      "stats": {
        "sandboxes_per_sec": 42.2
      },
      "ol-stats": {
        "Create().cnt": 423,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 423,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 423,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 422,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 423,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 845,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 423,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 423,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 423,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 422,
        "childExit().ms-avg": 0,
        "fork().cnt": 422,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 422,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 440,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 422,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:46:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:46:58 remove worker.pid",
        "2020/06/28 21:46:58 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.469699382781982,
      "total_seconds": 10.699259757995605,
      "stats": {
        "sandboxes_per_sec": 42.5
      },
      "ol-stats": {
        "Create().cnt": 426,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 426,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 426,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 425,
        "Create()/fork-proc.ms-avg": 71,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 426,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 851,
        "Destroy().ms-avg": 61,
        "Destroy()/detach-root.cnt": 426,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 426,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 426,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 425,
        "childExit().ms-avg": 78,
        "fork().cnt": 425,
        "fork().ms-avg": 71,
        "forkRequest.cnt": 425,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 443,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 425,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:47:09 remove worker.pid",
        "2020/06/28 21:47:09 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.864322423934937,
      "total_seconds": 11.212296724319458,
      "stats": {
        "sandboxes_per_sec": 42.8
      },
      "ol-stats": {
        "Create().cnt": 461,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 461,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 461,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 460,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 461,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 889,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 461,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 461,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 461,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 460,
        "childExit().ms-avg": 0,
        "fork().cnt": 460,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 460,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 478,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 460,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:47:20 remove worker.pid",
        "2020/06/28 21:47:20 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 11.016189575195312,
      "total_seconds": 11.365253925323486,
      "stats": {
        "sandboxes_per_sec": 40.6
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 49,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 845,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 54,
        "fork().cnt": 438,
        "fork().ms-avg": 49,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:47:32 remove worker.pid",
        "2020/06/28 21:47:32 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "registry_cache_ms": 3000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/tmp/tmpdcvw5z4j",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 6.036564826965332,
      "total_seconds": 6.280404806137085,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 64,
        "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": 219,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1586,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1589,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1586,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1585,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 7,
        "web-request.cnt": 1586,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:47:38 remove worker.pid",
        "2020/06/28 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.045376777648926,
      "total_seconds": 15.280673742294312,
      "stats": {
        "reqs_per_sec": 275.8666666666667
      },
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4138,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4141,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4138,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4137,
        "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": 4138,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:47:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:47:53 remove worker.pid",
        "2020/06/28 21:47:53 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.046618223190308,
      "total_seconds": 15.280604600906372,
      "stats": {
        "reqs_per_sec": 277.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4161,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3732,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4161,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3728,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4161,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:48:08 remove worker.pid",
        "2020/06/28 21:48:08 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.073291540145874,
      "total_seconds": 15.307305335998535,
      "stats": {
        "reqs_per_sec": 257.93333333333334
      },
      "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": 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": 3869,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2797,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3869,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2793,
        "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": 4,
        "web-request.cnt": 3869,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:48:24 remove worker.pid",
        "2020/06/28 21:48:24 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/tmp/tmpuk8fs7ph",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        }
      },
      "seconds": 3.1034252643585205,
      "total_seconds": 3.5483357906341553,
      "stats": {
        "reqs_per_sec": 32.22303546497259
      },
      "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": 140,
        "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": 26,
        "Pause().cnt": 200,
        "Pause().ms-avg": 11,
        "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": 12,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 65,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 26
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:48:27 remove worker.pid",
        "2020/06/28 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "registry": "/tmp/tmp_sr3ads4",
        "import_cache_tree": "",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "pip_mirror": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 46.226824045181274,
      "total_seconds": 46.79683208465576,
      "stats": {
        "reqs_per_sec": 21.63247618976739
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "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": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 5,
        "evict.cnt": 979,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/28 21:49:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/28 21:49:14 remove worker.pid",
        "2020/06/28 21:49:14 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 350.4389126300812
}