{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.25681209564209,
      "total_seconds": 2.5490989685058594,
      "stats": {
        "pings_per_sec": 443.1067923009806
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:00 remove worker.pid",
        "2020/06/22 21:43:00 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 9.426394701004028,
      "total_seconds": 9.665312051773071,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 284,
        "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": 282,
        "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": 2347,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 110,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1158,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2347
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:10 remove worker.pid",
        "2020/06/22 21:43:10 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.068361520767212,
      "total_seconds": 6.304534912109375,
      "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": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1509,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 942,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1509
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:16 remove worker.pid",
        "2020/06/22 21:43:16 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "sandbox": "docker",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 20.066258430480957,
      "total_seconds": 21.08912706375122,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 870,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 261,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5003,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2404,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5003
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:37 Kill function: install",
        "2020/06/22 21:43:37 Destroy() [SB 6]",
        "2020/06/22 21:43:37 Kill function: install2",
        "2020/06/22 21:43:37 Destroy() [SB 7]",
        "2020/06/22 21:43:37 Kill function: install3",
        "2020/06/22 21:43:37 Destroy() [SB 9]",
        "2020/06/22 21:43:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:38 remove worker.pid",
        "2020/06/22 21:43:38 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.9696667194366455,
      "total_seconds": 1.2018234729766846,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 473,
        "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": 797,
        "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": 965,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 797,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 796,
        "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": 965
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:39 remove worker.pid",
        "2020/06/22 21:43:39 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 0.8063242435455322,
      "total_seconds": 0.9392197132110596,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 79,
        "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": 142,
        "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": 802,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 635,
        "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": 802
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:43:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:43:40 remove worker.pid",
        "2020/06/22 21:43:40 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 28.716254472732544,
      "total_seconds": 28.950589418411255,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5739,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 272,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3856,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5739
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:09 remove worker.pid",
        "2020/06/22 21:44:09 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 5.0951828956604,
      "total_seconds": 5.217633962631226,
      "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": [
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:14 remove worker.pid",
        "2020/06/22 21:44:14 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.178950309753418,
      "total_seconds": 10.405540704727173,
      "stats": {
        "sandboxes_per_sec": 48.0
      },
      "ol-stats": {
        "Create().cnt": 481,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 481,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 481,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 480,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 481,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 961,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 481,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 481,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 481,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 480,
        "childExit().ms-avg": 0,
        "fork().cnt": 480,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 480,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 498,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 480,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:24 remove worker.pid",
        "2020/06/22 21:44:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.33861494064331,
      "total_seconds": 10.57369089126587,
      "stats": {
        "sandboxes_per_sec": 46.4
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 70,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 52,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 929,
        "Destroy().ms-avg": 40,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 50,
        "fork().cnt": 464,
        "fork().ms-avg": 52,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:35 remove worker.pid",
        "2020/06/22 21:44:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.760415315628052,
      "total_seconds": 11.084794998168945,
      "stats": {
        "sandboxes_per_sec": 48.4
      },
      "ol-stats": {
        "Create().cnt": 517,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 517,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 517,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 516,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 517,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1001,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 517,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 517,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 517,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 516,
        "childExit().ms-avg": 0,
        "fork().cnt": 516,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 516,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 534,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 516,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:46 remove worker.pid",
        "2020/06/22 21:44:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 11.013806581497192,
      "total_seconds": 11.468607902526855,
      "stats": {
        "sandboxes_per_sec": 43.7
      },
      "ol-stats": {
        "Create().cnt": 470,
        "Create().ms-avg": 112,
        "Create()/acquire-cgroup.cnt": 470,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 470,
        "Create()/acquire-mem.ms-avg": 63,
        "Create()/fork-proc.cnt": 469,
        "Create()/fork-proc.ms-avg": 45,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 470,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 38,
        "Destroy()/detach-root.cnt": 470,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 470,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 470,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 469,
        "childExit().ms-avg": 46,
        "fork().cnt": 469,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 469,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 487,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 469,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:44:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:44:57 remove worker.pid",
        "2020/06/22 21:44:57 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpzo_09w6h",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "registry_cache_ms": 3000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.029884099960327,
      "total_seconds": 6.276511907577515,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 78,
        "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": 280,
        "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": 1649,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1652,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1649,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1648,
        "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": 1649,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:45:04 remove worker.pid",
        "2020/06/22 21:45:04 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.044344902038574,
      "total_seconds": 15.273875951766968,
      "stats": {
        "reqs_per_sec": 279.93333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4199,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4202,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4199,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4198,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4199,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:45:19 remove worker.pid",
        "2020/06/22 21:45:19 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.04848599433899,
      "total_seconds": 15.278485774993896,
      "stats": {
        "reqs_per_sec": 286.73333333333335
      },
      "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": 138,
        "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": 4301,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4053,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4301,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4049,
        "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": 4301,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:45:34 remove worker.pid",
        "2020/06/22 21:45:34 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 15.068489789962769,
      "total_seconds": 15.299489259719849,
      "stats": {
        "reqs_per_sec": 280.4
      },
      "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": 8,
        "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": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4206,
        "LambdaFunc.Invoke.ms-avg": 6,
        "Pause().cnt": 2280,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4206,
        "ServeHTTP.ms-avg": 1,
        "Unpause().cnt": 2276,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "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": 3,
        "web-request.cnt": 4206,
        "web-request.ms-avg": 6
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:45:50 remove worker.pid",
        "2020/06/22 21:45:50 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmppf99xcr9",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.662353754043579,
      "total_seconds": 3.098651170730591,
      "stats": {
        "reqs_per_sec": 37.56139441360874
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 66,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:45:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:45:53 remove worker.pid",
        "2020/06/22 21:45:53 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "import_cache_tree": "",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "registry": "/tmp/tmpgz3mj2m6",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 41.91829037666321,
      "total_seconds": 42.467299938201904,
      "stats": {
        "reqs_per_sec": 23.85595062383169
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 10,
        "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": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/22 21:46:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/22 21:46:35 remove worker.pid",
        "2020/06/22 21:46:35 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 286.4533154964447
}