{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 2.1872196197509766,
      "total_seconds": 2.382887125015259,
      "stats": {
        "pings_per_sec": 457.2058441365911
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:42:41 remove worker.pid",
        "2020/01/04 21:42:41 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 8.95335841178894,
      "total_seconds": 9.194397687911987,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 256,
        "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": 254,
        "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": 2226,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1165,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2226
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:42:50 remove worker.pid",
        "2020/01/04 21:42:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 5.998707056045532,
      "total_seconds": 6.2366297245025635,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 1492,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 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": 930,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1492
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:42:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:42:56 remove worker.pid",
        "2020/01/04 21:42:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "docker",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 20.094935417175293,
      "total_seconds": 21.123228073120117,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 879,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 257,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5012,
        "Pause().cnt": 4,
        "Pause().ms-avg": 33,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2438,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5013
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:43:17 Kill function: install",
        "2020/01/04 21:43:17 Destroy() [SB 6]",
        "2020/01/04 21:43:17 Kill function: install2",
        "2020/01/04 21:43:17 Destroy() [SB 7]",
        "2020/01/04 21:43:17 Kill function: install3",
        "2020/01/04 21:43:17 Destroy() [SB 9]",
        "2020/01/04 21:43:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:43:18 remove worker.pid",
        "2020/01/04 21:43:18 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 0.18900203704833984,
      "total_seconds": 0.4223175048828125,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 82,
        "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 148,
        "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": 185,
        "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": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 185
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:43:18 remove worker.pid",
        "2020/01/04 21:43:18 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 0.8650870323181152,
      "total_seconds": 1.0977520942687988,
      "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": 8,
        "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": 861,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 699,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 861
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:43:19 remove worker.pid",
        "2020/01/04 21:43:19 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 28.696586847305298,
      "total_seconds": 28.935279369354248,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 119,
        "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": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 24,
        "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": 5735,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 283,
        "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": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3815,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5735
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:43:48 remove worker.pid",
        "2020/01/04 21:43:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "baseline": 0,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 5.102102518081665,
      "total_seconds": 5.3262763023376465,
      "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": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:43:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:43:53 remove worker.pid",
        "2020/01/04 21:43:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 10.184483289718628,
      "total_seconds": 10.411832332611084,
      "stats": {
        "sandboxes_per_sec": 44.6
      },
      "ol-stats": {
        "Create().cnt": 447,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 447,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 447,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 446,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 447,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 893,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 447,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 447,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 447,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 446,
        "childExit().ms-avg": 0,
        "fork().cnt": 446,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 446,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 464,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 446,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:04 remove worker.pid",
        "2020/01/04 21:44:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 10.326910734176636,
      "total_seconds": 10.570201873779297,
      "stats": {
        "sandboxes_per_sec": 44.5
      },
      "ol-stats": {
        "Create().cnt": 446,
        "Create().ms-avg": 89,
        "Create()/acquire-cgroup.cnt": 446,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 446,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 445,
        "Create()/fork-proc.ms-avg": 68,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 446,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 446,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 446,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 446,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 445,
        "childExit().ms-avg": 68,
        "fork().cnt": 445,
        "fork().ms-avg": 68,
        "forkRequest.cnt": 445,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 463,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 445,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:14 remove worker.pid",
        "2020/01/04 21:44:14 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 10.88013243675232,
      "total_seconds": 11.223656177520752,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 0,
        "fork().cnt": 453,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:25 remove worker.pid",
        "2020/01/04 21:44:25 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 11.026951789855957,
      "total_seconds": 11.479853391647339,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 125,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 76,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 45,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 47,
        "fork().cnt": 449,
        "fork().ms-avg": 45,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:37 remove worker.pid",
        "2020/01/04 21:44:37 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 3000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/tmp/tmpvnjem1ro",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 6.032065391540527,
      "total_seconds": 6.275039434432983,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 50,
        "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": 168,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1663,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1666,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1663,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1662,
        "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": 2,
        "web-request.cnt": 1663,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:43 remove worker.pid",
        "2020/01/04 21:44:43 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 15.04145622253418,
      "total_seconds": 15.274653673171997,
      "stats": {
        "reqs_per_sec": 286.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 4299,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4302,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4299,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4298,
        "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": 4299,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:44:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:44:59 remove worker.pid",
        "2020/01/04 21:44:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 15.045353651046753,
      "total_seconds": 15.2778480052948,
      "stats": {
        "reqs_per_sec": 276.6
      },
      "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": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4149,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3639,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4149,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3635,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4149,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:45:14 remove worker.pid",
        "2020/01/04 21:45:14 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 15.069029808044434,
      "total_seconds": 15.301466941833496,
      "stats": {
        "reqs_per_sec": 256.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 3848,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2921,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3848,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2917,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 3848,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:45:29 remove worker.pid",
        "2020/01/04 21:45:29 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "sandbox_config": {},
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/tmp/tmpf0vorjts",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 2.9863059520721436,
      "total_seconds": 3.421717643737793,
      "stats": {
        "reqs_per_sec": 33.486473211805034
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 159,
        "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": 58,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 26
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:45:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:45:33 remove worker.pid",
        "2020/01/04 21:45:33 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "sandbox": "sock",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "worker_port": "5000",
        "registry": "/tmp/tmphfcmyntf",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "pip_mirror": ""
      },
      "seconds": 44.45659947395325,
      "total_seconds": 45.03205728530884,
      "stats": {
        "reqs_per_sec": 22.493862795408443
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "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": 40,
        "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": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 40
      },
      "errors": [],
      "worker_tail": [
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/01/04 21:46:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/01/04 21:46:18 remove worker.pid",
        "2020/01/04 21:46:18 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 280.60368633270264
}