{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 2.217695713043213,
      "total_seconds": 2.462958335876465,
      "stats": {
        "pings_per_sec": 450.9226580705865
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:07 remove worker.pid",
        "2019/08/11 21:45:07 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        }
      },
      "seconds": 9.806576251983643,
      "total_seconds": 10.043274641036987,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 315,
        "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": 313,
        "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": 2439,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 61,
        "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": 1247,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2439
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:17 remove worker.pid",
        "2019/08/11 21:45:17 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 6.273615598678589,
      "total_seconds": 6.510172605514526,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "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": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1560,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 60,
        "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": 964,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1560
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:24 remove worker.pid",
        "2019/08/11 21:45:24 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "sandbox": "docker",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        }
      },
      "seconds": 30.554519176483154,
      "total_seconds": 31.57512855529785,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1594,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 298,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7626,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2972,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7626
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:55 Kill function: echo",
        "2019/08/11 21:45:55 Destroy() [SB 0]",
        "2019/08/11 21:45:55 Kill function: install",
        "2019/08/11 21:45:55 Destroy() [SB 6]",
        "2019/08/11 21:45:55 Kill function: install2",
        "2019/08/11 21:45:55 Destroy() [SB 7]",
        "2019/08/11 21:45:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:55 remove worker.pid",
        "2019/08/11 21:45:55 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 0.1961042881011963,
      "total_seconds": 0.42658472061157227,
      "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": 6,
        "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": 192,
        "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": 20,
        "web-request.cnt": 1,
        "web-request.ms-avg": 192
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:56 remove worker.pid",
        "2019/08/11 21:45:56 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 0.8350284099578857,
      "total_seconds": 1.0671508312225342,
      "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": 6,
        "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": 831,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 669,
        "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": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 831
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:45:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:45:57 remove worker.pid",
        "2019/08/11 21:45:57 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 40.13297367095947,
      "total_seconds": 40.3933584690094,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 220,
        "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": 143,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 129,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 8022,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 692,
        "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": 7,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4961,
        "web-request.cnt": 5,
        "web-request.ms-avg": 8022
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:46:37 remove worker.pid",
        "2019/08/11 21:46:37 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "procs": 1,
        "fork": false,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 5.1426825523376465,
      "total_seconds": 5.26529598236084,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 152,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 8,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:46:43 remove worker.pid",
        "2019/08/11 21:46:43 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.166504383087158,
      "total_seconds": 10.393246173858643,
      "stats": {
        "sandboxes_per_sec": 46.4
      },
      "ol-stats": {
        "Create().cnt": 465,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 465,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 465,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 464,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 465,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 929,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 465,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 465,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 465,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 464,
        "childExit().ms-avg": 0,
        "fork().cnt": 464,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 464,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 482,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 464,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:46:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:46:53 remove worker.pid",
        "2019/08/11 21:46:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.340785264968872,
      "total_seconds": 10.567840337753296,
      "stats": {
        "sandboxes_per_sec": 46.7
      },
      "ol-stats": {
        "Create().cnt": 468,
        "Create().ms-avg": 83,
        "Create()/acquire-cgroup.cnt": 468,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 468,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 467,
        "Create()/fork-proc.ms-avg": 63,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 468,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 935,
        "Destroy().ms-avg": 50,
        "Destroy()/detach-root.cnt": 468,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 468,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 468,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 467,
        "childExit().ms-avg": 63,
        "fork().cnt": 467,
        "fork().ms-avg": 63,
        "forkRequest.cnt": 467,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 485,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 467,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:47:04 remove worker.pid",
        "2019/08/11 21:47:04 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 11.182939767837524,
      "total_seconds": 11.523538589477539,
      "stats": {
        "sandboxes_per_sec": 42.6
      },
      "ol-stats": {
        "Create().cnt": 459,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 459,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 459,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 458,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 459,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 885,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 459,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 459,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 459,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 458,
        "childExit().ms-avg": 0,
        "fork().cnt": 458,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 458,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 476,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 458,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:47:15 remove worker.pid",
        "2019/08/11 21:47:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.961578369140625,
      "total_seconds": 11.307458639144897,
      "stats": {
        "sandboxes_per_sec": 42.2
      },
      "ol-stats": {
        "Create().cnt": 455,
        "Create().ms-avg": 110,
        "Create()/acquire-cgroup.cnt": 455,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 455,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 454,
        "Create()/fork-proc.ms-avg": 40,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 455,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 455,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 455,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 455,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 454,
        "childExit().ms-avg": 42,
        "fork().cnt": 454,
        "fork().ms-avg": 40,
        "forkRequest.cnt": 454,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 472,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 454,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:47:26 remove worker.pid",
        "2019/08/11 21:47:26 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 3000,
        "server_mode": "lambda",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "registry": "/tmp/tmplbuvon_d",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 6.031257390975952,
      "total_seconds": 6.276986598968506,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 56,
        "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": 189,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1680,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1683,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1680,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1679,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1680,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:47:33 remove worker.pid",
        "2019/08/11 21:47:33 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.044586896896362,
      "total_seconds": 15.276146411895752,
      "stats": {
        "reqs_per_sec": 281.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4216,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4219,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4216,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4215,
        "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": 4216,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:47:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:47:48 remove worker.pid",
        "2019/08/11 21:47:48 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.044757843017578,
      "total_seconds": 15.273342609405518,
      "stats": {
        "reqs_per_sec": 280.8
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4212,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3796,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4212,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3792,
        "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": 4212,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:48:03 remove worker.pid",
        "2019/08/11 21:48:03 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.062583923339844,
      "total_seconds": 15.29346513748169,
      "stats": {
        "reqs_per_sec": 257.26666666666665
      },
      "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": 5,
        "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": 3859,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3021,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3859,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3017,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "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": 3,
        "web-request.cnt": 3859,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:48:19 remove worker.pid",
        "2019/08/11 21:48:19 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "pip_mirror": "",
        "docker_runtime": "",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "registry": "/tmp/tmpcok96de1",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 2.748455047607422,
      "total_seconds": 3.188831329345703,
      "stats": {
        "reqs_per_sec": 36.38441468494847
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:48:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:48:22 remove worker.pid",
        "2019/08/11 21:48:22 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "server_mode": "lambda",
        "sandbox_config": {},
        "registry": "/tmp/tmpylkk25b0",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 42.15921664237976,
      "total_seconds": 42.71083688735962,
      "stats": {
        "reqs_per_sec": 23.719620296648735
      },
      "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": 164,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 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": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/08/11 21:49:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/08/11 21:49:05 remove worker.pid",
        "2019/08/11 21:49:05 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 321.0310525894165
}