{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": ""
      },
      "seconds": 2.165471315383911,
      "total_seconds": 2.3904380798339844,
      "stats": {
        "pings_per_sec": 461.79755487439667
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:43:34 remove worker.pid",
        "2019/10/21 21:43:34 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": ""
      },
      "seconds": 9.475624799728394,
      "total_seconds": 9.72295331954956,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 307,
        "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": 305,
        "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": 2356,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 51,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1165,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2356
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:43:44 remove worker.pid",
        "2019/10/21 21:43:44 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 5.951721906661987,
      "total_seconds": 6.186633348464966,
      "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": 6,
        "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": 1480,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "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": 923,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1480
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:43:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:43:50 remove worker.pid",
        "2019/10/21 21:43:50 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "sandbox": "docker",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": ""
      },
      "seconds": 18.9770028591156,
      "total_seconds": 20.00281047821045,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 845,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 242,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4732,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2269,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4732
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:09 Kill function: install",
        "2019/10/21 21:44:09 Destroy() [SB 6]",
        "2019/10/21 21:44:10 Kill function: install2",
        "2019/10/21 21:44:10 Destroy() [SB 7]",
        "2019/10/21 21:44:10 Kill function: install3",
        "2019/10/21 21:44:10 Destroy() [SB 9]",
        "2019/10/21 21:44:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:10 remove worker.pid",
        "2019/10/21 21:44:10 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 0.17821502685546875,
      "total_seconds": 0.4105255603790283,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 174,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 174
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:10 remove worker.pid",
        "2019/10/21 21:44:10 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 0.8287177085876465,
      "total_seconds": 1.0607311725616455,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "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": 138,
        "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": 824,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 663,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 824
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:11 remove worker.pid",
        "2019/10/21 21:44:11 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 28.435405254364014,
      "total_seconds": 28.679075956344604,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 118,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 147,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 24,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5683,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 239,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 7,
        "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": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3813,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5683
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:40 remove worker.pid",
        "2019/10/21 21:44:40 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 5,
        "procs": 1,
        "fork": false
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "sock",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 5.11443305015564,
      "total_seconds": 5.238049268722534,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 144,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:45 remove worker.pid",
        "2019/10/21 21:44:45 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "procs": 1,
        "fork": true
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "sock",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.178000926971436,
      "total_seconds": 10.405683040618896,
      "stats": {
        "sandboxes_per_sec": 45.5
      },
      "ol-stats": {
        "Create().cnt": 456,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 456,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 456,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 455,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 456,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 456,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 456,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 456,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 455,
        "childExit().ms-avg": 0,
        "fork().cnt": 455,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 455,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 473,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 455,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:44:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:44:56 remove worker.pid",
        "2019/10/21 21:44:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "procs": 15,
        "fork": true
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "sock",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.366420269012451,
      "total_seconds": 10.597683191299438,
      "stats": {
        "sandboxes_per_sec": 46.1
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 89,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 67,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 923,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 66,
        "fork().cnt": 461,
        "fork().ms-avg": 67,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:45:06 remove worker.pid",
        "2019/10/21 21:45:06 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "procs": 1,
        "fork": true
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "sock",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.797783136367798,
      "total_seconds": 11.133039474487305,
      "stats": {
        "sandboxes_per_sec": 46.2
      },
      "ol-stats": {
        "Create().cnt": 495,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 495,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 495,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 494,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 495,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 957,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 495,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 495,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 495,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 494,
        "childExit().ms-avg": 0,
        "fork().cnt": 494,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 494,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 512,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 494,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:45:17 remove worker.pid",
        "2019/10/21 21:45:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "procs": 15,
        "fork": true
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "sock",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 11.02629828453064,
      "total_seconds": 11.374539852142334,
      "stats": {
        "sandboxes_per_sec": 42.3
      },
      "ol-stats": {
        "Create().cnt": 456,
        "Create().ms-avg": 120,
        "Create()/acquire-cgroup.cnt": 456,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 456,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 455,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 157,
        "Create()/make-root-fs.cnt": 456,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 879,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 456,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 456,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 456,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 455,
        "childExit().ms-avg": 54,
        "fork().cnt": 455,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 455,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 473,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 455,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:45:29 remove worker.pid",
        "2019/10/21 21:45:29 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmp9iboutj7",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": ""
      },
      "seconds": 6.035190582275391,
      "total_seconds": 6.279198169708252,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 52,
        "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": 180,
        "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": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1662,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1665,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1662,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1661,
        "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": 2,
        "web-request.cnt": 1662,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:45:35 remove worker.pid",
        "2019/10/21 21:45:35 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.044991970062256,
      "total_seconds": 15.276844501495361,
      "stats": {
        "reqs_per_sec": 286.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4291,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4294,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4291,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4290,
        "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": 4291,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:45:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:45:50 remove worker.pid",
        "2019/10/21 21:45:50 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.04544711112976,
      "total_seconds": 15.27487301826477,
      "stats": {
        "reqs_per_sec": 291.26666666666665
      },
      "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": 2,
        "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": 4369,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3940,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4369,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3936,
        "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": 4369,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:46:06 remove worker.pid",
        "2019/10/21 21:46:06 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.063000679016113,
      "total_seconds": 15.29359245300293,
      "stats": {
        "reqs_per_sec": 258.46666666666664
      },
      "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": 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": 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": 3877,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2980,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3877,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2976,
        "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": 3,
        "web-request.cnt": 3877,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:46:21 remove worker.pid",
        "2019/10/21 21:46:21 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpxqsb6foa",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "server_mode": "lambda",
        "worker_port": "5000",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox_config": {},
        "import_cache_tree": ""
      },
      "seconds": 2.826616048812866,
      "total_seconds": 3.2811362743377686,
      "stats": {
        "reqs_per_sec": 35.3783620398289
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 154,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 53,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 69,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:46:24 remove worker.pid",
        "2019/10/21 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "worker_port": "5000",
        "registry": "/tmp/tmpqx_oa4j0",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 42.388039112091064,
      "total_seconds": 42.93272519111633,
      "stats": {
        "reqs_per_sec": 23.59157614763265
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 2,
        "evict.cnt": 979,
        "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": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/21 21:47:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/21 21:47:07 remove worker.pid",
        "2019/10/21 21:47:07 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 277.85012650489807
}