{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 2.2482047080993652,
      "total_seconds": 2.4413866996765137,
      "stats": {
        "pings_per_sec": 444.8037400680689
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:47:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:47:51 remove worker.pid",
        "2019/12/30 21:47:51 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 12.492594718933105,
      "total_seconds": 12.733320474624634,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 512,
        "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": 510,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3056,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 31,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1276,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3056
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:48:03 remove worker.pid",
        "2019/12/30 21:48:03 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 7.358173608779907,
      "total_seconds": 7.601128578186035,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 122,
        "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": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 30,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1831,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "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": 5,
        "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": 1101,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1831
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:48:11 remove worker.pid",
        "2019/12/30 21:48:11 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "sandbox": "docker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 32.183369159698486,
      "total_seconds": 34.113837003707886,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1248,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 552,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 8033,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 4071,
        "web-request.cnt": 4,
        "web-request.ms-avg": 8033
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:48:44 Kill function: install",
        "2019/12/30 21:48:44 Destroy() [SB 6]",
        "2019/12/30 21:48:44 Kill function: install2",
        "2019/12/30 21:48:44 Destroy() [SB 7]",
        "2019/12/30 21:48:45 Kill function: install3",
        "2019/12/30 21:48:45 Destroy() [SB 9]",
        "2019/12/30 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:48:45 remove worker.pid",
        "2019/12/30 21:48:45 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 0.6190624237060547,
      "total_seconds": 0.8516416549682617,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 239,
        "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": 462,
        "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": 615,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 116,
        "web-request.cnt": 1,
        "web-request.ms-avg": 615
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:48:46 remove worker.pid",
        "2019/12/30 21:48:46 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 0.8634750843048096,
      "total_seconds": 1.0958278179168701,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 859,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 694,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 859
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:48:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:48:47 remove worker.pid",
        "2019/12/30 21:48:47 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 81.32246828079224,
      "total_seconds": 81.69774580001831,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 354,
        "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": 208,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 223,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 16257,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 592,
        "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": 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": 5,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 11111,
        "web-request.cnt": 5,
        "web-request.ms-avg": 16257
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:09 remove worker.pid",
        "2019/12/30 21:50:09 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 5.125608682632446,
      "total_seconds": 5.349782466888428,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 145,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:14 remove worker.pid",
        "2019/12/30 21:50:14 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 10.17625117301941,
      "total_seconds": 10.41479754447937,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 422,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 422,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 422,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 421,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 422,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 843,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 422,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 422,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 422,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 421,
        "childExit().ms-avg": 0,
        "fork().cnt": 421,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 421,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 439,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 421,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:24 remove worker.pid",
        "2019/12/30 21:50:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 0,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 10.308178424835205,
      "total_seconds": 10.557011842727661,
      "stats": {
        "sandboxes_per_sec": 42.8
      },
      "ol-stats": {
        "Create().cnt": 429,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 429,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 429,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 428,
        "Create()/fork-proc.ms-avg": 77,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 429,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 857,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 429,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 429,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 429,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 428,
        "childExit().ms-avg": 79,
        "fork().cnt": 428,
        "fork().ms-avg": 77,
        "forkRequest.cnt": 428,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 446,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 428,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:35 remove worker.pid",
        "2019/12/30 21:50:35 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 32,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 10.844498872756958,
      "total_seconds": 11.30835747718811,
      "stats": {
        "sandboxes_per_sec": 42.0
      },
      "ol-stats": {
        "Create().cnt": 453,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 453,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 453,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 452,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 453,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 873,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 453,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 453,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 453,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 452,
        "childExit().ms-avg": 0,
        "fork().cnt": 452,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 452,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 470,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 452,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:46 remove worker.pid",
        "2019/12/30 21:50:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 32,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 11.176393032073975,
      "total_seconds": 11.531538486480713,
      "stats": {
        "sandboxes_per_sec": 39.6
      },
      "ol-stats": {
        "Create().cnt": 429,
        "Create().ms-avg": 139,
        "Create()/acquire-cgroup.cnt": 429,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 429,
        "Create()/acquire-mem.ms-avg": 84,
        "Create()/fork-proc.cnt": 428,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 209,
        "Create()/make-root-fs.cnt": 429,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 825,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 429,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 429,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 429,
        "Destroy()/remove-root.ms-avg": 1,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 428,
        "childExit().ms-avg": 55,
        "fork().cnt": 428,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 428,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 446,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 428,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:50:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:50:58 remove worker.pid",
        "2019/12/30 21:50:58 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/tmp/tmp6x0knk5c",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 3000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 6.036451101303101,
      "total_seconds": 6.2798686027526855,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 150,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1571,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1574,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1571,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1570,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 92,
        "web-request.cnt": 1571,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:51:04 remove worker.pid",
        "2019/12/30 21:51:04 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.051116466522217,
      "total_seconds": 15.28515076637268,
      "stats": {
        "reqs_per_sec": 281.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 4221,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4224,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4221,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4220,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4221,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:51:19 remove worker.pid",
        "2019/12/30 21:51:19 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.051218032836914,
      "total_seconds": 15.28610610961914,
      "stats": {
        "reqs_per_sec": 279.73333333333335
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4196,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3762,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4196,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3758,
        "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": 4196,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:51:35 remove worker.pid",
        "2019/12/30 21:51:35 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/root/open-lambda/test-registry",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 15.067492723464966,
      "total_seconds": 15.303677797317505,
      "stats": {
        "reqs_per_sec": 253.33333333333334
      },
      "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": 139,
        "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": 3800,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2828,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3800,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2824,
        "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": 4,
        "web-request.cnt": 3800,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:51:50 remove worker.pid",
        "2019/12/30 21:51:50 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "import_cache_tree": "",
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/tmp/tmp5z8zykii",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 3.110727071762085,
      "total_seconds": 3.5496420860290527,
      "stats": {
        "reqs_per_sec": 32.14708902151476
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "Destroy().ms-avg": 5,
        "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": 27,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 4,
        "evict.cnt": 57,
        "evict.ms-avg": 12,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 27
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:51:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:51:54 remove worker.pid",
        "2019/12/30 21:51:54 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "sandbox_config": {},
        "worker_port": "5000",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": "",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "registry": "/tmp/tmpdfr4t5sr",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        }
      },
      "seconds": 48.411208152770996,
      "total_seconds": 48.98716330528259,
      "stats": {
        "reqs_per_sec": 20.656384850062434
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "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": 43,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 981,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 44
      },
      "errors": [],
      "worker_tail": [
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/30 21:52:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/30 21:52:43 remove worker.pid",
        "2019/12/30 21:52:43 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 418.28424978256226
}