{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "sandbox": "sock",
        "docker_runtime": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 2.1716761589050293,
      "total_seconds": 2.5030641555786133,
      "stats": {
        "pings_per_sec": 460.4782104966272
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:46:41 remove worker.pid",
        "2020/07/05 21:46:41 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 11.029076099395752,
      "total_seconds": 11.267380475997925,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 411,
        "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": 409,
        "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": 2746,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 101,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 9,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1216,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2746
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:46:52 remove worker.pid",
        "2020/07/05 21:46:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.2910072803497314,
      "total_seconds": 6.528227806091309,
      "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": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1565,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 979,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1565
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:46:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:46:59 remove worker.pid",
        "2020/07/05 21:46:59 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "sandbox": "docker",
        "docker_runtime": "",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 20.34474205970764,
      "total_seconds": 21.371238708496094,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 948,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 253,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5074,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2369,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5074
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:47:19 Kill function: echo",
        "2020/07/05 21:47:19 Destroy() [SB 0]",
        "2020/07/05 21:47:20 Kill function: install",
        "2020/07/05 21:47:20 Destroy() [SB 6]",
        "2020/07/05 21:47:20 Kill function: install2",
        "2020/07/05 21:47:20 Destroy() [SB 7]",
        "2020/07/05 21:47:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:47:20 remove worker.pid",
        "2020/07/05 21:47:20 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.17508411407470703,
      "total_seconds": 0.40884876251220703,
      "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": 171,
        "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": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 171
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:47:20 remove worker.pid",
        "2020/07/05 21:47:20 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.8416213989257812,
      "total_seconds": 1.0738275051116943,
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 837,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 673,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 837
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:47:22 remove worker.pid",
        "2020/07/05 21:47:22 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 27.7572979927063,
      "total_seconds": 28.014276027679443,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 152,
        "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": 181,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 38,
        "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": 5547,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 297,
        "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": 4,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3603,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5547
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:47:50 remove worker.pid",
        "2020/07/05 21:47:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "baseline": 0,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 5.082353115081787,
      "total_seconds": 5.303791761398315,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:47:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:47:55 remove worker.pid",
        "2020/07/05 21:47:55 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.162366390228271,
      "total_seconds": 10.388484477996826,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 0,
        "fork().cnt": 438,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:48:05 remove worker.pid",
        "2020/07/05 21:48:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.446695566177368,
      "total_seconds": 10.832690954208374,
      "stats": {
        "sandboxes_per_sec": 45.8
      },
      "ol-stats": {
        "Create().cnt": 459,
        "Create().ms-avg": 83,
        "Create()/acquire-cgroup.cnt": 459,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 459,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 458,
        "Create()/fork-proc.ms-avg": 64,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 459,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 917,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 459,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 459,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 459,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 458,
        "childExit().ms-avg": 62,
        "fork().cnt": 458,
        "fork().ms-avg": 64,
        "forkRequest.cnt": 458,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 476,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 458,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:48:16 remove worker.pid",
        "2020/07/05 21:48:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.796868324279785,
      "total_seconds": 11.15361213684082,
      "stats": {
        "sandboxes_per_sec": 45.5
      },
      "ol-stats": {
        "Create().cnt": 488,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 488,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 488,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 487,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 488,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 943,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 488,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 488,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 488,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 487,
        "childExit().ms-avg": 0,
        "fork().cnt": 487,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 487,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 505,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 487,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:48:27 remove worker.pid",
        "2020/07/05 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "import_cache_tree": "",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.918962717056274,
      "total_seconds": 11.463818550109863,
      "stats": {
        "sandboxes_per_sec": 41.9
      },
      "ol-stats": {
        "Create().cnt": 452,
        "Create().ms-avg": 119,
        "Create()/acquire-cgroup.cnt": 452,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 452,
        "Create()/acquire-mem.ms-avg": 72,
        "Create()/fork-proc.cnt": 451,
        "Create()/fork-proc.ms-avg": 42,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 452,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 871,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 452,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 452,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 452,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 451,
        "childExit().ms-avg": 45,
        "fork().cnt": 451,
        "fork().ms-avg": 42,
        "forkRequest.cnt": 451,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 469,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 451,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:48:39 remove worker.pid",
        "2020/07/05 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 3000,
        "registry": "/tmp/tmpidymm0je",
        "sandbox_config": {},
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.028237819671631,
      "total_seconds": 6.275935411453247,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 148,
        "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": 1665,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1668,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1665,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1664,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 9,
        "web-request.cnt": 1665,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:48:45 remove worker.pid",
        "2020/07/05 21:48:45 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.041803359985352,
      "total_seconds": 15.272581815719604,
      "stats": {
        "reqs_per_sec": 284.46666666666664
      },
      "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": 4267,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4270,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4267,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4266,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4267,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:49:00 remove worker.pid",
        "2020/07/05 21:49:00 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.04504108428955,
      "total_seconds": 15.274789333343506,
      "stats": {
        "reqs_per_sec": 290.4
      },
      "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": 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": 4356,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3937,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4356,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3933,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4356,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:49:16 remove worker.pid",
        "2020/07/05 21:49:16 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.06462574005127,
      "total_seconds": 15.295746803283691,
      "stats": {
        "reqs_per_sec": 263.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 8,
        "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": 3955,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3056,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3955,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3052,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3955,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:49:31 remove worker.pid",
        "2020/07/05 21:49:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmprzlgcvev",
        "sandbox_config": {},
        "sandbox": "sock",
        "docker_runtime": "",
        "import_cache_tree": "",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 2.7514169216156006,
      "total_seconds": 3.2040793895721436,
      "stats": {
        "reqs_per_sec": 36.346364938022845
      },
      "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": 137,
        "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": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "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": [
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:49:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:49:34 remove worker.pid",
        "2020/07/05 21:49:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry": "/tmp/tmpff4eyk28",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "import_cache_tree": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 43.16852164268494,
      "total_seconds": 43.87196731567383,
      "stats": {
        "reqs_per_sec": 23.165042549812014
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "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": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/05 21:50:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/05 21:50:18 remove worker.pid",
        "2020/07/05 21:50:18 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 296.5287265777588
}