{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 2.235290288925171,
      "total_seconds": 2.483042001724243,
      "stats": {
        "pings_per_sec": 447.3730524310094
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:45:19 remove worker.pid",
        "2019/10/09 21:45:19 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 10.180544137954712,
      "total_seconds": 10.418010950088501,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 315,
        "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": 313,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2535,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1276,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2535
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:45:30 remove worker.pid",
        "2019/10/09 21:45:30 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 6.143239736557007,
      "total_seconds": 6.378589630126953,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1528,
        "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": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 955,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1528
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:45:36 remove worker.pid",
        "2019/10/09 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker"
      },
      "seconds": 21.155357360839844,
      "total_seconds": 22.28186821937561,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 991,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 259,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5277,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2474,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5277
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:45:57 Kill function: install",
        "2019/10/09 21:45:57 Destroy() [SB 6]",
        "2019/10/09 21:45:58 Kill function: install2",
        "2019/10/09 21:45:58 Destroy() [SB 7]",
        "2019/10/09 21:45:58 Kill function: install3",
        "2019/10/09 21:45:58 Destroy() [SB 9]",
        "2019/10/09 21:45:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:45:58 remove worker.pid",
        "2019/10/09 21:45:58 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 0.17465734481811523,
      "total_seconds": 0.40445494651794434,
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "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": 170,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 170
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:45:59 remove worker.pid",
        "2019/10/09 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 0.8398075103759766,
      "total_seconds": 1.0707085132598877,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "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": 836,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 675,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 3,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 836
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:46:00 remove worker.pid",
        "2019/10/09 21:46:00 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 29.875636100769043,
      "total_seconds": 30.123788356781006,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 204,
        "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": 147,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 111,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 44,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5970,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 263,
        "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": 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": 3840,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5970
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:46:30 remove worker.pid",
        "2019/10/09 21:46:30 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "baseline": 0,
        "fork": false
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 5.186061859130859,
      "total_seconds": 5.408033609390259,
      "stats": {
        "sandboxes_per_sec": 5.8
      },
      "ol-stats": {
        "Create().cnt": 29,
        "Create().ms-avg": 161,
        "Create()/acquire-cgroup.cnt": 29,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 29,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 29,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 29,
        "Create()/make-root-fs.ms-avg": 21,
        "Destroy().cnt": 58,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 29,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 29,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 29,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 46,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:46:35 remove worker.pid",
        "2019/10/09 21:46:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 10.246554613113403,
      "total_seconds": 10.473941087722778,
      "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": 134,
        "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": 5,
        "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": [
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:46:46 remove worker.pid",
        "2019/10/09 21:46:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 10.348806142807007,
      "total_seconds": 10.586320877075195,
      "stats": {
        "sandboxes_per_sec": 44.3
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 59,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 887,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 443,
        "childExit().ms-avg": 58,
        "fork().cnt": 443,
        "fork().ms-avg": 59,
        "forkRequest.cnt": 443,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 461,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 443,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:46:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:46:56 remove worker.pid",
        "2019/10/09 21:46:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 10.824623823165894,
      "total_seconds": 11.167659997940063,
      "stats": {
        "sandboxes_per_sec": 41.6
      },
      "ol-stats": {
        "Create().cnt": 449,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 449,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 449,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 448,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 449,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 865,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 449,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 449,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 449,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 448,
        "childExit().ms-avg": 0,
        "fork().cnt": 448,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 448,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 466,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 448,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:47:07 remove worker.pid",
        "2019/10/09 21:47:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "sock",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 11.118858814239502,
      "total_seconds": 11.471392631530762,
      "stats": {
        "sandboxes_per_sec": 39.9
      },
      "ol-stats": {
        "Create().cnt": 432,
        "Create().ms-avg": 131,
        "Create()/acquire-cgroup.cnt": 432,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 432,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 431,
        "Create()/fork-proc.ms-avg": 53,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 191,
        "Create()/make-root-fs.cnt": 432,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 831,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 432,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 432,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 432,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 431,
        "childExit().ms-avg": 56,
        "fork().cnt": 431,
        "fork().ms-avg": 53,
        "forkRequest.cnt": 431,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 449,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 431,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:47:19 remove worker.pid",
        "2019/10/09 21:47:19 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/tmp/tmpwfgcji4a",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 3000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 6.032529354095459,
      "total_seconds": 6.262741804122925,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 48,
        "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": 154,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1699,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1702,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1699,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1698,
        "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": 14,
        "web-request.cnt": 1699,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:47:25 remove worker.pid",
        "2019/10/09 21:47:25 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 15.041358232498169,
      "total_seconds": 15.270989418029785,
      "stats": {
        "reqs_per_sec": 286.1333333333333
      },
      "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": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4292,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4295,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4292,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4291,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "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": 4292,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:47:41 remove worker.pid",
        "2019/10/09 21:47:41 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 15.043272018432617,
      "total_seconds": 15.273003101348877,
      "stats": {
        "reqs_per_sec": 285.46666666666664
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4282,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3877,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4282,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3873,
        "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": 2,
        "web-request.cnt": 4282,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:47:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:47:56 remove worker.pid",
        "2019/10/09 21:47:56 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 15.063629627227783,
      "total_seconds": 15.293795824050903,
      "stats": {
        "reqs_per_sec": 254.26666666666668
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3814,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2770,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3814,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2766,
        "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": 3,
        "web-request.cnt": 3814,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:48:11 remove worker.pid",
        "2019/10/09 21:48:11 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/tmp/tmpfy407cuj",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 2.8537039756774902,
      "total_seconds": 3.2925612926483154,
      "stats": {
        "reqs_per_sec": 35.042469832157565
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 54,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:48:15 remove worker.pid",
        "2019/10/09 21:48:15 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/tmp/tmpgpf31_xx",
        "sandbox_config": {},
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "pip_mirror": "",
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock"
      },
      "seconds": 42.85748338699341,
      "total_seconds": 43.55183386802673,
      "stats": {
        "reqs_per_sec": 23.333162213626775
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "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": 139,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "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": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 12,
        "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": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/09 21:48:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/09 21:48:59 remove worker.pid",
        "2019/10/09 21:48:59 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 310.3895061016083
}