{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "pip_mirror": "",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 2.191263437271118,
      "total_seconds": 2.293231964111328,
      "stats": {
        "pings_per_sec": 456.3620958797972
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:46:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:46:46 remove worker.pid",
        "2020/07/07 21:46:46 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 14.428215742111206,
      "total_seconds": 14.665731191635132,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 301,
        "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": 299,
        "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": 3559,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 69,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1963,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3559
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:47:00 remove worker.pid",
        "2020/07/07 21:47:00 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 6.258174180984497,
      "total_seconds": 6.4939703941345215,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1556,
        "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": 974,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1556
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:47:07 remove worker.pid",
        "2020/07/07 21:47:07 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "sandbox_config": {},
        "sandbox": "docker",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 22.797104120254517,
      "total_seconds": 23.825818061828613,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1036,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 219,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5688,
        "Pause().cnt": 4,
        "Pause().ms-avg": 154,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2754,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5688
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:47:30 Kill function: install3",
        "2020/07/07 21:47:30 Destroy() [SB 9]",
        "2020/07/07 21:47:30 Kill function: echo",
        "2020/07/07 21:47:30 Destroy() [SB 0]",
        "2020/07/07 21:47:31 Kill function: install",
        "2020/07/07 21:47:31 Destroy() [SB 6]",
        "2020/07/07 21:47:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:47:31 remove worker.pid",
        "2020/07/07 21:47:31 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 0.1757364273071289,
      "total_seconds": 0.4078056812286377,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "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": 172,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 172
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:47:31 remove worker.pid",
        "2020/07/07 21:47:31 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 0.8508620262145996,
      "total_seconds": 1.0832829475402832,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 847,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 688,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "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": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 847
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:47:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:47:32 remove worker.pid",
        "2020/07/07 21:47:32 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 75.93112826347351,
      "total_seconds": 76.30798983573914,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 100,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 5,
        "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": 3,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 15182,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 1987,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "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": 9373,
        "web-request.cnt": 5,
        "web-request.ms-avg": 15182
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:48:49 remove worker.pid",
        "2020/07/07 21:48:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "baseline": 0,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 5.211970806121826,
      "total_seconds": 5.433435916900635,
      "stats": {
        "sandboxes_per_sec": 6.6
      },
      "ol-stats": {
        "Create().cnt": 33,
        "Create().ms-avg": 139,
        "Create()/acquire-cgroup.cnt": 33,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 33,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 33,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 33,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 66,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 33,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 33,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 33,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 50,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:48:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:48:54 remove worker.pid",
        "2020/07/07 21:48:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.15572738647461,
      "total_seconds": 10.38180661201477,
      "stats": {
        "sandboxes_per_sec": 43.6
      },
      "ol-stats": {
        "Create().cnt": 437,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 437,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 437,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 436,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 437,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 873,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 437,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 437,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 437,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 436,
        "childExit().ms-avg": 0,
        "fork().cnt": 436,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 436,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 454,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 436,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:49:04 remove worker.pid",
        "2020/07/07 21:49:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.372429847717285,
      "total_seconds": 10.599105834960938,
      "stats": {
        "sandboxes_per_sec": 43.5
      },
      "ol-stats": {
        "Create().cnt": 436,
        "Create().ms-avg": 90,
        "Create()/acquire-cgroup.cnt": 436,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 436,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 435,
        "Create()/fork-proc.ms-avg": 67,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 436,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 871,
        "Destroy().ms-avg": 55,
        "Destroy()/detach-root.cnt": 436,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 436,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 436,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 435,
        "childExit().ms-avg": 69,
        "fork().cnt": 435,
        "fork().ms-avg": 67,
        "forkRequest.cnt": 435,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 453,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 435,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:49:15 remove worker.pid",
        "2020/07/07 21:49:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.763397455215454,
      "total_seconds": 11.117922067642212,
      "stats": {
        "sandboxes_per_sec": 45.6
      },
      "ol-stats": {
        "Create().cnt": 489,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 489,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 489,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 488,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 489,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 945,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 489,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 489,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 489,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 488,
        "childExit().ms-avg": 0,
        "fork().cnt": 488,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 488,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 506,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 488,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:49:26 remove worker.pid",
        "2020/07/07 21:49:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 11.57326865196228,
      "total_seconds": 11.93664026260376,
      "stats": {
        "sandboxes_per_sec": 42.8
      },
      "ol-stats": {
        "Create().cnt": 461,
        "Create().ms-avg": 129,
        "Create()/acquire-cgroup.cnt": 461,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 461,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 460,
        "Create()/fork-proc.ms-avg": 51,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "Create()/make-root-fs.cnt": 461,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 889,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 461,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 461,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 461,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 460,
        "childExit().ms-avg": 60,
        "fork().cnt": 460,
        "fork().ms-avg": 51,
        "forkRequest.cnt": 460,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 478,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 460,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:49:38 remove worker.pid",
        "2020/07/07 21:49:38 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "sandbox_config": {},
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry_cache_ms": 3000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "pip_mirror": "",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmpdzs5xti3"
      },
      "seconds": 6.033831834793091,
      "total_seconds": 6.283184289932251,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 50,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 169,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 1680,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1683,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1680,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1679,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1680,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:49:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:49:44 remove worker.pid",
        "2020/07/07 21:49:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.042809009552002,
      "total_seconds": 15.289283990859985,
      "stats": {
        "reqs_per_sec": 292.6666666666667
      },
      "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": 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": 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": 4390,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4393,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4390,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4389,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4390,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:50:00 remove worker.pid",
        "2020/07/07 21:50:00 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.049099206924438,
      "total_seconds": 15.587345361709595,
      "stats": {
        "reqs_per_sec": 284.2
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4263,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3814,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4263,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3810,
        "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": 4263,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:50:15 remove worker.pid",
        "2020/07/07 21:50:15 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "sandbox": "sock",
        "worker_port": "5000",
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.065933227539062,
      "total_seconds": 15.296562194824219,
      "stats": {
        "reqs_per_sec": 262.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 3943,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2977,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3943,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2973,
        "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": 5,
        "web-request.cnt": 3943,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:50:30 remove worker.pid",
        "2020/07/07 21:50:30 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "pip_mirror": "",
        "worker_port": "5000",
        "sandbox": "sock",
        "server_mode": "lambda",
        "registry": "/tmp/tmplnn7a6mm"
      },
      "seconds": 2.6948680877685547,
      "total_seconds": 3.132413625717163,
      "stats": {
        "reqs_per_sec": 37.10826369623894
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "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": 52,
        "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": [
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:50:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:50:34 remove worker.pid",
        "2020/07/07 21:50:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "pip_mirror": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpn20dlbjo"
      },
      "seconds": 43.85523819923401,
      "total_seconds": 45.004546880722046,
      "stats": {
        "reqs_per_sec": 22.802307956914394
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 1984,
        "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": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "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": 983,
        "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": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/07 21:51:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/07 21:51:18 remove worker.pid",
        "2020/07/07 21:51:18 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 391.72635889053345
}