{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 2.3329384326934814,
      "total_seconds": 2.563373565673828,
      "stats": {
        "pings_per_sec": 428.64765335485475
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:45:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:45:47 remove worker.pid",
        "2019/09/17 21:45:47 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 12.931865930557251,
      "total_seconds": 13.17227840423584,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 299,
        "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": 297,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3224,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 61,
        "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": 1745,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3224
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:46:00 remove worker.pid",
        "2019/09/17 21:46:00 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 7.5691046714782715,
      "total_seconds": 7.809279441833496,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1884,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 60,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 5,
        "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": 1179,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1884
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:46:08 remove worker.pid",
        "2019/09/17 21:46:08 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "docker"
      },
      "seconds": 19.3907310962677,
      "total_seconds": 21.116249561309814,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 896,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 330,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4835,
        "Pause().cnt": 4,
        "Pause().ms-avg": 26,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2244,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4835
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:46:28 Kill function: echo",
        "2019/09/17 21:46:28 Destroy() [SB 0]",
        "2019/09/17 21:46:29 Kill function: install",
        "2019/09/17 21:46:29 Destroy() [SB 6]",
        "2019/09/17 21:46:29 Kill function: install2",
        "2019/09/17 21:46:29 Destroy() [SB 7]",
        "2019/09/17 21:46:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:46:29 remove worker.pid",
        "2019/09/17 21:46:29 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 0.1821911334991455,
      "total_seconds": 0.41541385650634766,
      "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": 178,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "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": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 178
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:46:29 remove worker.pid",
        "2019/09/17 21:46:29 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 0.8514499664306641,
      "total_seconds": 1.0842323303222656,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 847,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 681,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 847
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:46:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:46:30 remove worker.pid",
        "2019/09/17 21:46:30 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 58.655704736709595,
      "total_seconds": 58.89095902442932,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 103,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 147,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 9,
        "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": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 11727,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 311,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 8105,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11727
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:47:29 remove worker.pid",
        "2019/09/17 21:47:29 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "seconds": 5,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 5.109616756439209,
      "total_seconds": 5.333101987838745,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 147,
        "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": 142,
        "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": [
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:47:35 remove worker.pid",
        "2019/09/17 21:47:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 10.175671815872192,
      "total_seconds": 10.424155473709106,
      "stats": {
        "sandboxes_per_sec": 43.2
      },
      "ol-stats": {
        "Create().cnt": 433,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 433,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 433,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 432,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 433,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 865,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 433,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 433,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 433,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 432,
        "childExit().ms-avg": 0,
        "fork().cnt": 432,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 432,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 450,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 432,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:47:45 remove worker.pid",
        "2019/09/17 21:47:45 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 10.396107912063599,
      "total_seconds": 10.63213300704956,
      "stats": {
        "sandboxes_per_sec": 45.0
      },
      "ol-stats": {
        "Create().cnt": 451,
        "Create().ms-avg": 90,
        "Create()/acquire-cgroup.cnt": 451,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 451,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 450,
        "Create()/fork-proc.ms-avg": 68,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 451,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 901,
        "Destroy().ms-avg": 54,
        "Destroy()/detach-root.cnt": 451,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 451,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 451,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 450,
        "childExit().ms-avg": 71,
        "fork().cnt": 450,
        "fork().ms-avg": 68,
        "forkRequest.cnt": 450,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 468,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 450,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:47:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:47:56 remove worker.pid",
        "2019/09/17 21:47:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 11.10831332206726,
      "total_seconds": 11.447974920272827,
      "stats": {
        "sandboxes_per_sec": 44.1
      },
      "ol-stats": {
        "Create().cnt": 474,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 474,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 474,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 473,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 474,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 915,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 474,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 474,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 474,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 473,
        "childExit().ms-avg": 0,
        "fork().cnt": 473,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 473,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 491,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 473,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:48:07 remove worker.pid",
        "2019/09/17 21:48:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 11.089036226272583,
      "total_seconds": 11.88525938987732,
      "stats": {
        "sandboxes_per_sec": 40.8
      },
      "ol-stats": {
        "Create().cnt": 441,
        "Create().ms-avg": 130,
        "Create()/acquire-cgroup.cnt": 441,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 441,
        "Create()/acquire-mem.ms-avg": 72,
        "Create()/fork-proc.cnt": 440,
        "Create()/fork-proc.ms-avg": 54,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 158,
        "Create()/make-root-fs.cnt": 441,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 849,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 441,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 441,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 441,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 440,
        "childExit().ms-avg": 58,
        "fork().cnt": 440,
        "fork().ms-avg": 54,
        "forkRequest.cnt": 440,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 458,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 440,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:48:19 remove worker.pid",
        "2019/09/17 21:48:19 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 3000,
        "worker_port": "5000",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpa4f4o0_u",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 6.0387351512908936,
      "total_seconds": 6.286755561828613,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 1668,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1671,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1668,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1667,
        "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": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 6,
        "web-request.cnt": 1668,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:48:25 remove worker.pid",
        "2019/09/17 21:48:25 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 15.043782472610474,
      "total_seconds": 15.277235507965088,
      "stats": {
        "reqs_per_sec": 277.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4168,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4171,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4168,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4167,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4168,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:48:41 remove worker.pid",
        "2019/09/17 21:48:41 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 15.049659252166748,
      "total_seconds": 15.281851053237915,
      "stats": {
        "reqs_per_sec": 286.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4300,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3892,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4300,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3888,
        "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": 4300,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:48:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:48:56 remove worker.pid",
        "2019/09/17 21:48:56 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 15.070290803909302,
      "total_seconds": 15.302398920059204,
      "stats": {
        "reqs_per_sec": 256.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 3842,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2936,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3842,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2932,
        "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": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3842,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:49:11 remove worker.pid",
        "2019/09/17 21:49:11 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpfztj086a",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 3.0328547954559326,
      "total_seconds": 3.4854111671447754,
      "stats": {
        "reqs_per_sec": 32.97253274216625
      },
      "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": 141,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 26,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "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": [
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:49:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:49:15 remove worker.pid",
        "2019/09/17 21:49:15 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "docker_runtime": "",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpmp8jzeb9",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock"
      },
      "seconds": 45.512797355651855,
      "total_seconds": 46.07907438278198,
      "stats": {
        "reqs_per_sec": 21.971855401745614
      },
      "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": 137,
        "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": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 979,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 41
      },
      "errors": [],
      "worker_tail": [
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/09/17 21:50:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/09/17 21:50:01 remove worker.pid",
        "2019/09/17 21:50:01 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 343.7747383117676
}