{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 2.3625192642211914,
      "total_seconds": 2.661498546600342,
      "stats": {
        "pings_per_sec": 423.2807735566581
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:46:42 remove worker.pid",
        "2020/03/06 21:46:42 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 13.28630542755127,
      "total_seconds": 13.527218103408813,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 319,
        "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": 316,
        "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": 3306,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 80,
        "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": 1759,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3306
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:46:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:46:55 remove worker.pid",
        "2020/03/06 21:46:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.41124153137207,
      "total_seconds": 6.650349378585815,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 95,
        "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": 142,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1594,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "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": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 995,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1594
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:47:02 remove worker.pid",
        "2020/03/06 21:47:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "docker",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 31.283227920532227,
      "total_seconds": 32.91410541534424,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1108,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 754,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7807,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 4099,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7807
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:47:34 Kill function: install",
        "2020/03/06 21:47:34 Destroy() [SB 6]",
        "2020/03/06 21:47:34 Kill function: install2",
        "2020/03/06 21:47:34 Destroy() [SB 7]",
        "2020/03/06 21:47:34 Kill function: install3",
        "2020/03/06 21:47:34 Destroy() [SB 9]",
        "2020/03/06 21:47:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:47:35 remove worker.pid",
        "2020/03/06 21:47:35 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.2264719009399414,
      "total_seconds": 0.4606332778930664,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 98,
        "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": 19,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 168,
        "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": 222,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 14,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 19,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 18,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 222
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:47:35 remove worker.pid",
        "2020/03/06 21:47:35 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.8933994770050049,
      "total_seconds": 1.1259875297546387,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 79,
        "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": 142,
        "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": 889,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 697,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 25,
        "web-request.cnt": 1,
        "web-request.ms-avg": 889
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:47:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:47:36 remove worker.pid",
        "2020/03/06 21:47:36 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 131.5163538455963,
      "total_seconds": 131.77795124053955,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 153,
        "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": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 190,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 32,
        "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": 26299,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 294,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 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": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 18475,
        "web-request.cnt": 5,
        "web-request.ms-avg": 26299
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:49:48 remove worker.pid",
        "2020/03/06 21:49:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "seconds": 5,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "server_mode": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 5.069832801818848,
      "total_seconds": 5.195244312286377,
      "stats": {
        "sandboxes_per_sec": 5.8
      },
      "ol-stats": {
        "Create().cnt": 29,
        "Create().ms-avg": 146,
        "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": 141,
        "Create()/make-root-fs.cnt": 29,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 1,
        "Destroy()/remove-root.cnt": 29,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 46,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:49:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:49:53 remove worker.pid",
        "2020/03/06 21:49:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "server_mode": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.190419673919678,
      "total_seconds": 10.426140069961548,
      "stats": {
        "sandboxes_per_sec": 39.8
      },
      "ol-stats": {
        "Create().cnt": 399,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 399,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 399,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 398,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 399,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 797,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 399,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 399,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 399,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 398,
        "childExit().ms-avg": 0,
        "fork().cnt": 398,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 398,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 416,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 398,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:04 remove worker.pid",
        "2020/03/06 21:50:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "procs": 15,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "server_mode": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.926337718963623,
      "total_seconds": 11.166821479797363,
      "stats": {
        "sandboxes_per_sec": 41.1
      },
      "ol-stats": {
        "Create().cnt": 412,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 412,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 412,
        "Create()/acquire-mem.ms-avg": 20,
        "Create()/fork-proc.cnt": 411,
        "Create()/fork-proc.ms-avg": 65,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 569,
        "Create()/make-root-fs.cnt": 412,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 823,
        "Destroy().ms-avg": 55,
        "Destroy()/detach-root.cnt": 412,
        "Destroy()/detach-root.ms-avg": 2,
        "Destroy()/kill-procs.cnt": 412,
        "Destroy()/kill-procs.ms-avg": 17,
        "Destroy()/remove-root.cnt": 412,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 411,
        "childExit().ms-avg": 63,
        "fork().cnt": 411,
        "fork().ms-avg": 65,
        "forkRequest.cnt": 411,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 429,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 411,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:15 remove worker.pid",
        "2020/03/06 21:50:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "procs": 1,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "server_mode": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.89766788482666,
      "total_seconds": 11.23971176147461,
      "stats": {
        "sandboxes_per_sec": 41.1
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 443,
        "childExit().ms-avg": 0,
        "fork().cnt": 443,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 443,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 461,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 443,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:26 remove worker.pid",
        "2020/03/06 21:50:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "procs": 15,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "server_mode": "sock",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 11.13928771018982,
      "total_seconds": 11.493447065353394,
      "stats": {
        "sandboxes_per_sec": 38.7
      },
      "ol-stats": {
        "Create().cnt": 420,
        "Create().ms-avg": 139,
        "Create()/acquire-cgroup.cnt": 420,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 420,
        "Create()/acquire-mem.ms-avg": 79,
        "Create()/fork-proc.cnt": 419,
        "Create()/fork-proc.ms-avg": 55,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 170,
        "Create()/make-root-fs.cnt": 420,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 807,
        "Destroy().ms-avg": 52,
        "Destroy()/detach-root.cnt": 420,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 420,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 420,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 419,
        "childExit().ms-avg": 60,
        "fork().cnt": 419,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 419,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 437,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 419,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:38 remove worker.pid",
        "2020/03/06 21:50:38 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp008svxw2",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 3000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.033079624176025,
      "total_seconds": 6.269735336303711,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 145,
        "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": 1612,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1615,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1612,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1611,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1612,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:44 remove worker.pid",
        "2020/03/06 21:50:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.045825958251953,
      "total_seconds": 15.28432297706604,
      "stats": {
        "reqs_per_sec": 269.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 147,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4043,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4046,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4043,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4042,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4043,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:50:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:50:59 remove worker.pid",
        "2020/03/06 21:50:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.051844358444214,
      "total_seconds": 15.303838014602661,
      "stats": {
        "reqs_per_sec": 269.06666666666666
      },
      "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": 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": 4036,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3731,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4036,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3727,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4036,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:51:15 remove worker.pid",
        "2020/03/06 21:51:15 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.07009243965149,
      "total_seconds": 15.302948951721191,
      "stats": {
        "reqs_per_sec": 245.86666666666667
      },
      "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": 138,
        "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": 1,
        "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": 3688,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2768,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3688,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2764,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "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": 5,
        "web-request.cnt": 3688,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:51:30 remove worker.pid",
        "2020/03/06 21:51:30 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpkuy8e2bn",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 3.1972813606262207,
      "total_seconds": 3.6535940170288086,
      "stats": {
        "reqs_per_sec": 31.276865655837433
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "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": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 27,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 7,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 11,
        "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": 27
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:51:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:51:34 remove worker.pid",
        "2020/03/06 21:51:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmph18ou3qk",
        "docker_runtime": "",
        "server_mode": "lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 47.82783651351929,
      "total_seconds": 48.39632964134216,
      "stats": {
        "reqs_per_sec": 20.908342099013097
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 1981,
        "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": 43,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 980,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 43
      },
      "errors": [],
      "worker_tail": [
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/06 21:52:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/06 21:52:22 remove worker.pid",
        "2020/03/06 21:52:22 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 449.4998495578766
}