{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 2.141838312149048,
      "total_seconds": 2.331338405609131,
      "stats": {
        "pings_per_sec": 466.8931205045731
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:43:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:43:50 remove worker.pid",
        "2020/06/07 21:43:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 11.44662857055664,
      "total_seconds": 11.68327784538269,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 347,
        "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": 346,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2849,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 88,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 45,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1368,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2849
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:44:02 remove worker.pid",
        "2020/06/07 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 6.00158429145813,
      "total_seconds": 6.23686408996582,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "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": 137,
        "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": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "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": 932,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1492
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:44:08 remove worker.pid",
        "2020/06/07 21:44:08 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "docker",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 19.96852159500122,
      "total_seconds": 21.39196228981018,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 854,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 316,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4980,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2451,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4980
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:44:29 Kill function: install3",
        "2020/06/07 21:44:29 Destroy() [SB 9]",
        "2020/06/07 21:44:29 Kill function: echo",
        "2020/06/07 21:44:29 Destroy() [SB 0]",
        "2020/06/07 21:44:29 Kill function: install",
        "2020/06/07 21:44:29 Destroy() [SB 6]",
        "2020/06/07 21:44:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:44:29 remove worker.pid",
        "2020/06/07 21:44:29 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 0.1847367286682129,
      "total_seconds": 0.419619083404541,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 3,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 181,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 3,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 3,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 181
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:44:30 remove worker.pid",
        "2020/06/07 21:44:30 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 0.8097479343414307,
      "total_seconds": 1.0434434413909912,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 806,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 648,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 806
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:44:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:44:31 remove worker.pid",
        "2020/06/07 21:44:31 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 39.06265902519226,
      "total_seconds": 39.294984102249146,
      "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": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 151,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 23,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "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": 7808,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 403,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 5202,
        "web-request.cnt": 5,
        "web-request.ms-avg": 7808
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:10 remove worker.pid",
        "2020/06/07 21:45:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 5.114783763885498,
      "total_seconds": 5.337076902389526,
      "stats": {
        "sandboxes_per_sec": 5.6
      },
      "ol-stats": {
        "Create().cnt": 28,
        "Create().ms-avg": 145,
        "Create()/acquire-cgroup.cnt": 28,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 28,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 28,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 28,
        "Create()/make-root-fs.ms-avg": 7,
        "Destroy().cnt": 56,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 28,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 28,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 28,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 45,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:15 remove worker.pid",
        "2020/06/07 21:45:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 10.16850233078003,
      "total_seconds": 10.401183128356934,
      "stats": {
        "sandboxes_per_sec": 44.5
      },
      "ol-stats": {
        "Create().cnt": 446,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 446,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 446,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 445,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 446,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 446,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 446,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 446,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 445,
        "childExit().ms-avg": 0,
        "fork().cnt": 445,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 445,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 463,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 445,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:26 remove worker.pid",
        "2020/06/07 21:45:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 10.295613765716553,
      "total_seconds": 10.522673606872559,
      "stats": {
        "sandboxes_per_sec": 46.8
      },
      "ol-stats": {
        "Create().cnt": 469,
        "Create().ms-avg": 62,
        "Create()/acquire-cgroup.cnt": 469,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 469,
        "Create()/acquire-mem.ms-avg": 20,
        "Create()/fork-proc.cnt": 468,
        "Create()/fork-proc.ms-avg": 39,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 469,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 937,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 469,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 469,
        "Destroy()/kill-procs.ms-avg": 19,
        "Destroy()/remove-root.cnt": 469,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 468,
        "childExit().ms-avg": 38,
        "fork().cnt": 468,
        "fork().ms-avg": 39,
        "forkRequest.cnt": 468,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 486,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 468,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:36 remove worker.pid",
        "2020/06/07 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 10.801072597503662,
      "total_seconds": 11.52922797203064,
      "stats": {
        "sandboxes_per_sec": 45.4
      },
      "ol-stats": {
        "Create().cnt": 487,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 487,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 487,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 486,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 487,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 941,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 487,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 487,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 487,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 486,
        "childExit().ms-avg": 0,
        "fork().cnt": 486,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 486,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 504,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 486,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:48 remove worker.pid",
        "2020/06/07 21:45:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500
      },
      "seconds": 11.037044525146484,
      "total_seconds": 11.38616681098938,
      "stats": {
        "sandboxes_per_sec": 43.0
      },
      "ol-stats": {
        "Create().cnt": 463,
        "Create().ms-avg": 115,
        "Create()/acquire-cgroup.cnt": 463,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 463,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 462,
        "Create()/fork-proc.ms-avg": 44,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 168,
        "Create()/make-root-fs.cnt": 463,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 893,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 463,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 463,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 463,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 462,
        "childExit().ms-avg": 47,
        "fork().cnt": 462,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 462,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 480,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 462,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:45:59 remove worker.pid",
        "2020/06/07 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/tmp/tmpcsxyxj7x",
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 6.028111696243286,
      "total_seconds": 6.471581220626831,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 151,
        "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": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1695,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1698,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1695,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1694,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 1695,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:46:06 remove worker.pid",
        "2020/06/07 21:46:06 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.043673038482666,
      "total_seconds": 15.273638486862183,
      "stats": {
        "reqs_per_sec": 289.73333333333335
      },
      "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": 137,
        "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": 4346,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4349,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4346,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4345,
        "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": 4346,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:46:21 remove worker.pid",
        "2020/06/07 21:46:21 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.048171758651733,
      "total_seconds": 15.278160810470581,
      "stats": {
        "reqs_per_sec": 288.3333333333333
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4325,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4066,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4325,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4062,
        "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": 4325,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:46:36 remove worker.pid",
        "2020/06/07 21:46:36 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 15.065202236175537,
      "total_seconds": 15.29471731185913,
      "stats": {
        "reqs_per_sec": 271.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "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": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4075,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2945,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4075,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2941,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4,
        "web-request.cnt": 4075,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:46:52 remove worker.pid",
        "2020/06/07 21:46:52 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry": "/tmp/tmppi4493x9",
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 2.6934704780578613,
      "total_seconds": 3.1236515045166016,
      "stats": {
        "reqs_per_sec": 37.12724960308412
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 156,
        "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": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 55,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 67,
        "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": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:46:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:46:55 remove worker.pid",
        "2020/06/07 21:46:55 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "registry": "/tmp/tmpyfj62wfo",
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000
      },
      "seconds": 42.184715032577515,
      "total_seconds": 42.74730396270752,
      "stats": {
        "reqs_per_sec": 23.705291762336735
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 11,
        "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": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/07 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/07 21:47:38 remove worker.pid",
        "2020/06/07 21:47:38 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 309.07453870773315
}