{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 2.1739342212677,
      "total_seconds": 2.3917858600616455,
      "stats": {
        "pings_per_sec": 459.99965562846216
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:43:41 remove worker.pid",
        "2019/08/13 21:43:41 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 11.130584955215454,
      "total_seconds": 11.368298292160034,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 312,
        "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": 311,
        "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": 2737,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 60,
        "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": 1397,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2737
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:43:52 remove worker.pid",
        "2019/08/13 21:43:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 6.161566257476807,
      "total_seconds": 6.399034738540649,
      "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": 138,
        "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": 1532,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 61,
        "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": 946,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1532
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:43:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:43:59 remove worker.pid",
        "2019/08/13 21:43:59 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "docker",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 20.786994218826294,
      "total_seconds": 21.708696126937866,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 799,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 242,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5184,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2623,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5184
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:44:20 Kill function: install",
        "2019/08/13 21:44:20 Destroy() [SB 6]",
        "2019/08/13 21:44:20 Kill function: install2",
        "2019/08/13 21:44:20 Destroy() [SB 7]",
        "2019/08/13 21:44:20 Kill function: install3",
        "2019/08/13 21:44:20 Destroy() [SB 9]",
        "2019/08/13 21:44:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:44:21 remove worker.pid",
        "2019/08/13 21:44:21 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 0.2039487361907959,
      "total_seconds": 0.4354090690612793,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 90,
        "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": 165,
        "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": 200,
        "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": 200
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:44:21 remove worker.pid",
        "2019/08/13 21:44:21 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 0.8186087608337402,
      "total_seconds": 1.0522143840789795,
      "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "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": 814,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 655,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 8,
        "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": 814
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:44:22 remove worker.pid",
        "2019/08/13 21:44:22 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 32.22360801696777,
      "total_seconds": 32.63689064979553,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 109,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 16,
        "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": 6440,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 334,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 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": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4301,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6440
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:44:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:44:55 remove worker.pid",
        "2019/08/13 21:44:55 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "sock",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 5.106827974319458,
      "total_seconds": 5.329995155334473,
      "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": [
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:00 remove worker.pid",
        "2019/08/13 21:45:00 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "sock",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.249923944473267,
      "total_seconds": 10.484167575836182,
      "stats": {
        "sandboxes_per_sec": 43.0
      },
      "ol-stats": {
        "Create().cnt": 431,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 431,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 431,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 430,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 431,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 861,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 431,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 431,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 431,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 430,
        "childExit().ms-avg": 0,
        "fork().cnt": 430,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 430,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 448,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 430,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:10 remove worker.pid",
        "2019/08/13 21:45:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "sock",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.304780721664429,
      "total_seconds": 10.560818672180176,
      "stats": {
        "sandboxes_per_sec": 46.4
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 73,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 21,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 47,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 929,
        "Destroy().ms-avg": 52,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 18,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 47,
        "fork().cnt": 464,
        "fork().ms-avg": 47,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:21 remove worker.pid",
        "2019/08/13 21:45:21 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "sock",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.789608240127563,
      "total_seconds": 11.143420219421387,
      "stats": {
        "sandboxes_per_sec": 45.2
      },
      "ol-stats": {
        "Create().cnt": 485,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 485,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 485,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 484,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 485,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 937,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 485,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 485,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 485,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 484,
        "childExit().ms-avg": 0,
        "fork().cnt": 484,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 484,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 502,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 484,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:32 remove worker.pid",
        "2019/08/13 21:45:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "sock",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 11.170047283172607,
      "total_seconds": 11.522501945495605,
      "stats": {
        "sandboxes_per_sec": 43.2
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 119,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 70,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 45,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 303,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 897,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 47,
        "fork().cnt": 464,
        "fork().ms-avg": 45,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:44 remove worker.pid",
        "2019/08/13 21:45:44 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/tmp/tmpngp7b328",
        "import_cache_tree": ""
      },
      "seconds": 6.03041672706604,
      "total_seconds": 6.2735607624053955,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 47,
        "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": 156,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1714,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1717,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1714,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1713,
        "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": 7,
        "web-request.cnt": 1714,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:45:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:45:50 remove worker.pid",
        "2019/08/13 21:45:50 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.045722246170044,
      "total_seconds": 15.275928974151611,
      "stats": {
        "reqs_per_sec": 291.6666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "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": 3,
        "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": 4375,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4378,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4375,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4374,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 3,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "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": 4375,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:46:05 remove worker.pid",
        "2019/08/13 21:46:05 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.046558141708374,
      "total_seconds": 15.277472257614136,
      "stats": {
        "reqs_per_sec": 289.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4344,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3933,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4344,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3929,
        "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": 4344,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:46:21 remove worker.pid",
        "2019/08/13 21:46:21 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.06602668762207,
      "total_seconds": 15.29530644416809,
      "stats": {
        "reqs_per_sec": 264.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "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": 3,
        "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": 3962,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3002,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3962,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2998,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "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": 4,
        "web-request.cnt": 3962,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:46:36 remove worker.pid",
        "2019/08/13 21:46:36 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/tmp/tmpto9t15nm",
        "import_cache_tree": ""
      },
      "seconds": 2.6934683322906494,
      "total_seconds": 3.129385232925415,
      "stats": {
        "reqs_per_sec": 37.12717072870202
      },
      "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": 155,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 65,
        "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": [
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:46:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:46:39 remove worker.pid",
        "2019/08/13 21:46:39 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "docker_runtime": "",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "sandbox": "sock",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/tmp/tmpemj73qnv",
        "import_cache_tree": ""
      },
      "seconds": 41.80641984939575,
      "total_seconds": 42.349207162857056,
      "stats": {
        "reqs_per_sec": 23.91978626545352
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/13 21:47:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/13 21:47:21 remove worker.pid",
        "2019/08/13 21:47:21 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 300.3047022819519
}