{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        }
      },
      "seconds": 2.203805446624756,
      "total_seconds": 2.5183818340301514,
      "stats": {
        "pings_per_sec": 453.7672392547505
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:45:40 remove worker.pid",
        "2020/07/23 21:45:40 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        }
      },
      "seconds": 11.830907583236694,
      "total_seconds": 12.070990085601807,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 477,
        "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": 283,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 194,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2942,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 93,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 10,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1563,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2942
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:45:52 remove worker.pid",
        "2020/07/23 21:45:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 5.686426639556885,
      "total_seconds": 5.93055272102356,
      "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": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1413,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 5,
        "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": 876,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1413
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:45:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:45:58 remove worker.pid",
        "2020/07/23 21:45:58 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        }
      },
      "seconds": 17.188950300216675,
      "total_seconds": 18.318943977355957,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 893,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 269,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4284,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1963,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4284
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:46:15 Kill function: install",
        "2020/07/23 21:46:15 Destroy() [SB 6]",
        "2020/07/23 21:46:16 Kill function: install2",
        "2020/07/23 21:46:16 Destroy() [SB 7]",
        "2020/07/23 21:46:16 Kill function: install3",
        "2020/07/23 21:46:16 Destroy() [SB 9]",
        "2020/07/23 21:46:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:46:16 remove worker.pid",
        "2020/07/23 21:46:16 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 0.18163466453552246,
      "total_seconds": 0.4167768955230713,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 79,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 9,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 177,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 9,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 177
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:46:16 remove worker.pid",
        "2020/07/23 21:46:16 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 0.8552193641662598,
      "total_seconds": 1.0869543552398682,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 851,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 687,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 4,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 851
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:46:18 remove worker.pid",
        "2020/07/23 21:46:18 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 35.82983183860779,
      "total_seconds": 36.79786252975464,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 137,
        "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": 154,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 39,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 7161,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 325,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 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": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4768,
        "web-request.cnt": 5,
        "web-request.ms-avg": 7161
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:46:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:46:54 remove worker.pid",
        "2020/07/23 21:46:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "fork": false,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 5.099858283996582,
      "total_seconds": 5.322607517242432,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 145,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:00 remove worker.pid",
        "2020/07/23 21:47:00 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 1,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 10.174525022506714,
      "total_seconds": 10.415525913238525,
      "stats": {
        "sandboxes_per_sec": 41.2
      },
      "ol-stats": {
        "Create().cnt": 413,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 413,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 413,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 412,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 413,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 825,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 413,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 413,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 413,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 412,
        "childExit().ms-avg": 0,
        "fork().cnt": 412,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 412,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 430,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 412,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:10 remove worker.pid",
        "2020/07/23 21:47:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 15,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 10.371551275253296,
      "total_seconds": 10.617791891098022,
      "stats": {
        "sandboxes_per_sec": 42.2
      },
      "ol-stats": {
        "Create().cnt": 423,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 423,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 423,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 422,
        "Create()/fork-proc.ms-avg": 52,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 423,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 845,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 423,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 423,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 423,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 422,
        "childExit().ms-avg": 50,
        "fork().cnt": 422,
        "fork().ms-avg": 52,
        "forkRequest.cnt": 422,
        "forkRequest.ms-avg": 12,
        "fresh-cgroup.cnt": 440,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 422,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:21 remove worker.pid",
        "2020/07/23 21:47:21 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 1,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 10.857889890670776,
      "total_seconds": 11.201489448547363,
      "stats": {
        "sandboxes_per_sec": 42.6
      },
      "ol-stats": {
        "Create().cnt": 459,
        "Create().ms-avg": 7,
        "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": 139,
        "Create()/make-root-fs.cnt": 459,
        "Create()/make-root-fs.ms-avg": 0,
        "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": [
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:32 remove worker.pid",
        "2020/07/23 21:47:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "fork": true,
        "procs": 15,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "sock",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 11.115856647491455,
      "total_seconds": 11.468393802642822,
      "stats": {
        "sandboxes_per_sec": 39.8
      },
      "ol-stats": {
        "Create().cnt": 431,
        "Create().ms-avg": 127,
        "Create()/acquire-cgroup.cnt": 431,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 431,
        "Create()/acquire-mem.ms-avg": 71,
        "Create()/fork-proc.cnt": 430,
        "Create()/fork-proc.ms-avg": 53,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 182,
        "Create()/make-root-fs.cnt": 431,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 829,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 431,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 431,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 431,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 430,
        "childExit().ms-avg": 56,
        "fork().cnt": 430,
        "fork().ms-avg": 52,
        "forkRequest.cnt": 430,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 448,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 430,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:43 remove worker.pid",
        "2020/07/23 21:47:43 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry": "/tmp/tmpzuammy8u",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 3000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        }
      },
      "seconds": 6.036324501037598,
      "total_seconds": 6.288143634796143,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 60,
        "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": 207,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1744,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1747,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1744,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1743,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1744,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:47:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:47:50 remove worker.pid",
        "2020/07/23 21:47:50 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 15.048156261444092,
      "total_seconds": 15.281684637069702,
      "stats": {
        "reqs_per_sec": 294.1333333333333
      },
      "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": 135,
        "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": 4412,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4415,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4412,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4411,
        "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": 4412,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:48:05 remove worker.pid",
        "2020/07/23 21:48:05 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 15.048347234725952,
      "total_seconds": 15.282226324081421,
      "stats": {
        "reqs_per_sec": 285.8
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4287,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3905,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4287,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3901,
        "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": 4287,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:48:20 remove worker.pid",
        "2020/07/23 21:48:20 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 15.072081089019775,
      "total_seconds": 15.307067632675171,
      "stats": {
        "reqs_per_sec": 249.73333333333332
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3746,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2993,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3746,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2989,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3746,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:48:36 remove worker.pid",
        "2020/07/23 21:48:36 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "pip_mirror": "",
        "registry": "/tmp/tmp9152ajdd",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        }
      },
      "seconds": 3.1869077682495117,
      "total_seconds": 3.6190803050994873,
      "stats": {
        "reqs_per_sec": 31.378665460488566
      },
      "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": 136,
        "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": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 27,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "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": 27
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:48:39 remove worker.pid",
        "2020/07/23 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "registry": "/tmp/tmpnb903njm",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "server_mode": "lambda",
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox_config": {},
        "registry_cache_ms": 5000,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": ""
      },
      "seconds": 48.41093826293945,
      "total_seconds": 48.99137759208679,
      "stats": {
        "reqs_per_sec": 20.656501026291195
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 44,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 21,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 5,
        "evict.cnt": 980,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 44
      },
      "errors": [],
      "worker_tail": [
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/07/23 21:49:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/07/23 21:49:28 remove worker.pid",
        "2020/07/23 21:49:28 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 311.6801064014435
}