{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 2.2238004207611084,
      "total_seconds": 2.4592740535736084,
      "stats": {
        "pings_per_sec": 449.6847395952273
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:42:46 remove worker.pid",
        "2019/12/09 21:42:46 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 11.109733581542969,
      "total_seconds": 11.348297595977783,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 274,
        "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": 272,
        "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": 2767,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 146,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1431,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2767
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:42:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:42:57 remove worker.pid",
        "2019/12/09 21:42:57 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 5.907220125198364,
      "total_seconds": 6.141488790512085,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "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": 138,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1469,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "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": 916,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1469
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:43:03 remove worker.pid",
        "2019/12/09 21:43:03 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "docker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 22.156831741333008,
      "total_seconds": 23.182302236557007,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 910,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 296,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5527,
        "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": 2703,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5527
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:43:26 Kill function: install",
        "2019/12/09 21:43:26 Destroy() [SB 6]",
        "2019/12/09 21:43:26 Kill function: install2",
        "2019/12/09 21:43:26 Destroy() [SB 7]",
        "2019/12/09 21:43:26 Kill function: install3",
        "2019/12/09 21:43:26 Destroy() [SB 9]",
        "2019/12/09 21:43:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:43:26 remove worker.pid",
        "2019/12/09 21:43:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 0.18033099174499512,
      "total_seconds": 0.41272997856140137,
      "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": 6,
        "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": 176,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 176
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:43:27 remove worker.pid",
        "2019/12/09 21:43:27 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 0.8451964855194092,
      "total_seconds": 1.077561616897583,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 841,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 671,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 10,
        "web-request.cnt": 1,
        "web-request.ms-avg": 841
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:43:28 remove worker.pid",
        "2019/12/09 21:43:28 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 27.321457624435425,
      "total_seconds": 27.592034101486206,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 121,
        "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": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 159,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 19,
        "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": 1,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5460,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 315,
        "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": 5,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3604,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5460
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:43:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:43:56 remove worker.pid",
        "2019/12/09 21:43:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "procs": 1,
        "baseline": 0,
        "fork": false
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 5.081515550613403,
      "total_seconds": 5.303578853607178,
      "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": [
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:01 remove worker.pid",
        "2019/12/09 21:44:01 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.159240245819092,
      "total_seconds": 10.385376691818237,
      "stats": {
        "sandboxes_per_sec": 45.0
      },
      "ol-stats": {
        "Create().cnt": 451,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 451,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 451,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 450,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 451,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 901,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 451,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 451,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 451,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 450,
        "childExit().ms-avg": 0,
        "fork().cnt": 450,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 450,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 468,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 450,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:11 remove worker.pid",
        "2019/12/09 21:44:11 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.370300531387329,
      "total_seconds": 10.605704069137573,
      "stats": {
        "sandboxes_per_sec": 46.3
      },
      "ol-stats": {
        "Create().cnt": 464,
        "Create().ms-avg": 72,
        "Create()/acquire-cgroup.cnt": 464,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 464,
        "Create()/acquire-mem.ms-avg": 21,
        "Create()/fork-proc.cnt": 463,
        "Create()/fork-proc.ms-avg": 45,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 464,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 927,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 464,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 464,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 464,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 463,
        "childExit().ms-avg": 42,
        "fork().cnt": 463,
        "fork().ms-avg": 45,
        "forkRequest.cnt": 463,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 481,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 463,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:22 remove worker.pid",
        "2019/12/09 21:44:22 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.812641620635986,
      "total_seconds": 11.151030778884888,
      "stats": {
        "sandboxes_per_sec": 44.6
      },
      "ol-stats": {
        "Create().cnt": 479,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 479,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 479,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 478,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 479,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 925,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 479,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 479,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 479,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 478,
        "childExit().ms-avg": 0,
        "fork().cnt": 478,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 478,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 496,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 478,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:33 remove worker.pid",
        "2019/12/09 21:44:33 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 11.082879304885864,
      "total_seconds": 11.431848287582397,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 124,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 72,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 49,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 212,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 51,
        "fork().cnt": 453,
        "fork().ms-avg": 49,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:44 remove worker.pid",
        "2019/12/09 21:44:44 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/tmp/tmplp1u2a2m",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 6.0348992347717285,
      "total_seconds": 6.279096841812134,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1663,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1666,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1663,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1662,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 5,
        "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": 7,
        "web-request.cnt": 1663,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:44:51 remove worker.pid",
        "2019/12/09 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.047400712966919,
      "total_seconds": 15.27864694595337,
      "stats": {
        "reqs_per_sec": 283.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4258,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4261,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4258,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4257,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4258,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:45:06 remove worker.pid",
        "2019/12/09 21:45:06 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.04626989364624,
      "total_seconds": 15.277031183242798,
      "stats": {
        "reqs_per_sec": 287.3333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4310,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3806,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4310,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3802,
        "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": 4310,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:45:21 remove worker.pid",
        "2019/12/09 21:45:21 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.062216758728027,
      "total_seconds": 15.292934656143188,
      "stats": {
        "reqs_per_sec": 258.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3870,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2831,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3870,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2827,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 3870,
        "web-request.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:45:37 remove worker.pid",
        "2019/12/09 21:45:37 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/tmp/tmpl0jegwpi",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 2.927062511444092,
      "total_seconds": 3.4128880500793457,
      "stats": {
        "reqs_per_sec": 34.1642780285203
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "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": 4,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 278,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 4,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 69,
        "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": 25
      },
      "errors": [],
      "worker_tail": [
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:45:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:45:40 remove worker.pid",
        "2019/12/09 21:45:40 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "registry": "/tmp/tmpllblysfw",
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 42.661932945251465,
      "total_seconds": 43.2107515335083,
      "stats": {
        "reqs_per_sec": 23.440117366902363
      },
      "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": 163,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "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": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 11,
        "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": [
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/09 21:46:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/09 21:46:23 remove worker.pid",
        "2019/12/09 21:46:23 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 287.09794425964355
}