{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 2.1981496810913086,
      "total_seconds": 2.4104552268981934,
      "stats": {
        "pings_per_sec": 454.9323171817673
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:45:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:45:58 remove worker.pid",
        "2020/05/28 21:45:58 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 14.415102243423462,
      "total_seconds": 14.655423164367676,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 485,
        "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": 483,
        "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": 3592,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 92,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 296,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1515,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3592
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:46:13 remove worker.pid",
        "2020/05/28 21:46:13 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 8.05998706817627,
      "total_seconds": 8.297815084457397,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 146,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 54,
        "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": 2007,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "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": 7,
        "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": 1272,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2007
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:46:21 remove worker.pid",
        "2020/05/28 21:46:21 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "docker",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 24.278895139694214,
      "total_seconds": 25.30530571937561,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1143,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 312,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6057,
        "Pause().cnt": 4,
        "Pause().ms-avg": 172,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3053,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6057
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:46:46 Kill function: echo",
        "2020/05/28 21:46:46 Destroy() [SB 0]",
        "2020/05/28 21:46:46 Kill function: install",
        "2020/05/28 21:46:46 Destroy() [SB 6]",
        "2020/05/28 21:46:46 Kill function: install2",
        "2020/05/28 21:46:46 Destroy() [SB 7]",
        "2020/05/28 21:46:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:46:47 remove worker.pid",
        "2020/05/28 21:46:47 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.18359160423278809,
      "total_seconds": 0.41619348526000977,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 179,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "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": 179
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:46:47 remove worker.pid",
        "2020/05/28 21:46:47 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 0.8620288372039795,
      "total_seconds": 1.0975258350372314,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 858,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 694,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 858
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:46:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:46:48 remove worker.pid",
        "2020/05/28 21:46:48 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 58.998618841171265,
      "total_seconds": 59.25736975669861,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 105,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 152,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 9,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 11795,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 345,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 8118,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11795
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:47:47 remove worker.pid",
        "2020/05/28 21:47:47 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 5.10738468170166,
      "total_seconds": 5.23184871673584,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 143,
        "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": 138,
        "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": 1,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:47:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:47:53 remove worker.pid",
        "2020/05/28 21:47:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.181384801864624,
      "total_seconds": 10.417766571044922,
      "stats": {
        "sandboxes_per_sec": 42.7
      },
      "ol-stats": {
        "Create().cnt": 428,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 428,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 428,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 427,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 428,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 428,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 428,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 428,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 427,
        "childExit().ms-avg": 0,
        "fork().cnt": 427,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 427,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 445,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 427,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:03 remove worker.pid",
        "2020/05/28 21:48:03 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.326942443847656,
      "total_seconds": 10.565581798553467,
      "stats": {
        "sandboxes_per_sec": 43.7
      },
      "ol-stats": {
        "Create().cnt": 438,
        "Create().ms-avg": 100,
        "Create()/acquire-cgroup.cnt": 438,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 438,
        "Create()/acquire-mem.ms-avg": 21,
        "Create()/fork-proc.cnt": 437,
        "Create()/fork-proc.ms-avg": 74,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 438,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 61,
        "Destroy()/detach-root.cnt": 438,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 438,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 438,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 437,
        "childExit().ms-avg": 77,
        "fork().cnt": 437,
        "fork().ms-avg": 74,
        "forkRequest.cnt": 437,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 455,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 437,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:13 remove worker.pid",
        "2020/05/28 21:48:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 10.819920301437378,
      "total_seconds": 12.089162826538086,
      "stats": {
        "sandboxes_per_sec": 43.5
      },
      "ol-stats": {
        "Create().cnt": 468,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 468,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 468,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 467,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 468,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 903,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 468,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 468,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 468,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 467,
        "childExit().ms-avg": 0,
        "fork().cnt": 467,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 467,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 485,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 467,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:26 remove worker.pid",
        "2020/05/28 21:48:26 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 11.012025833129883,
      "total_seconds": 11.668232202529907,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 131,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 73,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 55,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 449,
        "childExit().ms-avg": 62,
        "fork().cnt": 449,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:37 remove worker.pid",
        "2020/05/28 21:48:37 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpe_ca40i9",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.034959077835083,
      "total_seconds": 6.2813239097595215,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 49,
        "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": 164,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1698,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1701,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1698,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1697,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1698,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:44 remove worker.pid",
        "2020/05/28 21:48:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.044633626937866,
      "total_seconds": 15.27764892578125,
      "stats": {
        "reqs_per_sec": 287.93333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4319,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4322,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4319,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4318,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4319,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:48:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:48:59 remove worker.pid",
        "2020/05/28 21:48:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.050201892852783,
      "total_seconds": 15.28331184387207,
      "stats": {
        "reqs_per_sec": 284.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4266,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3864,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4266,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3860,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "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": 4266,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:49:14 remove worker.pid",
        "2020/05/28 21:49:14 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 15.068668603897095,
      "total_seconds": 15.301228761672974,
      "stats": {
        "reqs_per_sec": 260.8
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 8,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 5,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3912,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2894,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3912,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2890,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 3912,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:49:29 remove worker.pid",
        "2020/05/28 21:49:29 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpzndivxrl",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 3.047037363052368,
      "total_seconds": 3.4894254207611084,
      "stats": {
        "reqs_per_sec": 32.8190156213921
      },
      "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": 142,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 152,
        "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": 26,
        "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": 51,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "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": 26
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:49:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:49:33 remove worker.pid",
        "2020/05/28 21:49:33 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp__jqz9g_",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 45.09557127952576,
      "total_seconds": 45.87002635002136,
      "stats": {
        "reqs_per_sec": 22.175139212534134
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 6,
        "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": 40,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 979,
        "evict.ms-avg": 13,
        "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": 41
      },
      "errors": [],
      "worker_tail": [
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/28 21:50:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/28 21:50:19 remove worker.pid",
        "2020/05/28 21:50:19 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 376.6632523536682
}