{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 2.2106239795684814,
      "total_seconds": 2.551480770111084,
      "stats": {
        "pings_per_sec": 452.36516229661896
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:44:45 remove worker.pid",
        "2020/04/14 21:44:45 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 10.177246332168579,
      "total_seconds": 10.417300462722778,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 324,
        "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": 322,
        "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": 2533,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 74,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 46,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1208,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2533
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:44:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:44:56 remove worker.pid",
        "2020/04/14 21:44:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 6.228373050689697,
      "total_seconds": 6.468181610107422,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 142,
        "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": 1548,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "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": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 966,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1548
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:45:02 remove worker.pid",
        "2020/04/14 21:45:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "docker"
      },
      "seconds": 23.07671570777893,
      "total_seconds": 24.099917888641357,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 947,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 275,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5756,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2779,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5757
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:45:26 Kill function: install",
        "2020/04/14 21:45:26 Destroy() [SB 6]",
        "2020/04/14 21:45:26 Kill function: install2",
        "2020/04/14 21:45:26 Destroy() [SB 7]",
        "2020/04/14 21:45:26 Kill function: install3",
        "2020/04/14 21:45:26 Destroy() [SB 9]",
        "2020/04/14 21:45:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:45:26 remove worker.pid",
        "2020/04/14 21:45:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 0.19095826148986816,
      "total_seconds": 0.42231178283691406,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 82,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 148,
        "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": 187,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 187
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:45:27 remove worker.pid",
        "2020/04/14 21:45:27 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 0.8578357696533203,
      "total_seconds": 1.0908081531524658,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 854,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 690,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 854
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:45:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:45:28 remove worker.pid",
        "2020/04/14 21:45:28 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 44.126795053482056,
      "total_seconds": 44.39813828468323,
      "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": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 164,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 6,
        "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": 8821,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 326,
        "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": 7,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 5995,
        "web-request.cnt": 5,
        "web-request.ms-avg": 8821
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:46:12 remove worker.pid",
        "2020/04/14 21:46:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "fork": false,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 5.149486303329468,
      "total_seconds": 5.272570848464966,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 142,
        "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": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:46:17 remove worker.pid",
        "2020/04/14 21:46:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 10.167359590530396,
      "total_seconds": 10.406333923339844,
      "stats": {
        "sandboxes_per_sec": 43.7
      },
      "ol-stats": {
        "Create().cnt": 438,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 438,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 438,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 437,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 438,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 438,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 438,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 438,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 437,
        "childExit().ms-avg": 0,
        "fork().cnt": 437,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 437,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 455,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 437,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:46:28 remove worker.pid",
        "2020/04/14 21:46:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "baseline": 0,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 10.348122119903564,
      "total_seconds": 10.576005935668945,
      "stats": {
        "sandboxes_per_sec": 44.5
      },
      "ol-stats": {
        "Create().cnt": 446,
        "Create().ms-avg": 85,
        "Create()/acquire-cgroup.cnt": 446,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 446,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 445,
        "Create()/fork-proc.ms-avg": 67,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 446,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 891,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 446,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 446,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 446,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 445,
        "childExit().ms-avg": 66,
        "fork().cnt": 445,
        "fork().ms-avg": 67,
        "forkRequest.cnt": 445,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 463,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 445,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:46:38 remove worker.pid",
        "2020/04/14 21:46:38 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "baseline": 32,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 10.873482465744019,
      "total_seconds": 11.21195363998413,
      "stats": {
        "sandboxes_per_sec": 43.1
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 895,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 0,
        "fork().cnt": 463,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:46:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:46:50 remove worker.pid",
        "2020/04/14 21:46:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "baseline": 32,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 11.057987451553345,
      "total_seconds": 11.409240961074829,
      "stats": {
        "sandboxes_per_sec": 41.2
      },
      "ol-stats": {
        "Create().cnt": 445,
        "Create().ms-avg": 120,
        "Create()/acquire-cgroup.cnt": 445,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 445,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 444,
        "Create()/fork-proc.ms-avg": 41,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 445,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 857,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 445,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 445,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 445,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 444,
        "childExit().ms-avg": 42,
        "fork().cnt": 444,
        "fork().ms-avg": 41,
        "forkRequest.cnt": 444,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 462,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 444,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:01 remove worker.pid",
        "2020/04/14 21:47:01 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmpave9mhtc",
        "server_mode": "lambda",
        "registry_cache_ms": 3000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 6.033522129058838,
      "total_seconds": 6.28133487701416,
      "stats": null,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 152,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1688,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1691,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1688,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1687,
        "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": 1688,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:07 remove worker.pid",
        "2020/04/14 21:47:07 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 15.041691064834595,
      "total_seconds": 15.27415132522583,
      "stats": {
        "reqs_per_sec": 286.0
      },
      "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": 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": 4290,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4293,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4290,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4289,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4290,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:23 remove worker.pid",
        "2020/04/14 21:47:23 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 15.048741102218628,
      "total_seconds": 15.282098531723022,
      "stats": {
        "reqs_per_sec": 287.73333333333335
      },
      "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": 138,
        "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": 4316,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3868,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4316,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3864,
        "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": 4316,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:38 remove worker.pid",
        "2020/04/14 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 15.068113565444946,
      "total_seconds": 15.299311399459839,
      "stats": {
        "reqs_per_sec": 259.06666666666666
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3886,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2984,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3886,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2980,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 4,
        "web-request.cnt": 3886,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:53 remove worker.pid",
        "2020/04/14 21:47:53 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmplp22hs6g",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 2.975849151611328,
      "total_seconds": 3.43245267868042,
      "stats": {
        "reqs_per_sec": 33.60411770427283
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 159,
        "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": 11,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 4,
        "evict.cnt": 58,
        "evict.ms-avg": 11,
        "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": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 26
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:47:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:47:57 remove worker.pid",
        "2020/04/14 21:47:57 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmp37p5iy18",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "sandbox_config": {},
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock"
      },
      "seconds": 47.230313539505005,
      "total_seconds": 48.20586538314819,
      "stats": {
        "reqs_per_sec": 21.172855541681347
      },
      "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": 134,
        "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": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 42,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 43
      },
      "errors": [],
      "worker_tail": [
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/14 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/14 21:48:45 remove worker.pid",
        "2020/04/14 21:48:45 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 328.00511264801025
}