{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "registry_cache_ms": 5000
      },
      "seconds": 2.146256446838379,
      "total_seconds": 2.4622042179107666,
      "stats": {
        "pings_per_sec": 465.9324115931223
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:44:32 remove worker.pid",
        "2019/10/30 21:44:32 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "registry_cache_ms": 5000
      },
      "seconds": 9.640166759490967,
      "total_seconds": 9.879929780960083,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 274,
        "Create()/acquire-cgroup.cnt": 10,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 10,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 10,
        "Create()/fresh-proc.ms-avg": 273,
        "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": 2397,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 73,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 11,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1226,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2397
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:44:42 remove worker.pid",
        "2019/10/30 21:44:42 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 5.981212615966797,
      "total_seconds": 6.218515396118164,
      "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": 8,
        "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": 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": 1487,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 7,
        "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": 927,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1487
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:44:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:44:48 remove worker.pid",
        "2019/10/30 21:44:48 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "docker",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "registry_cache_ms": 5000
      },
      "seconds": 20.13785433769226,
      "total_seconds": 21.262739896774292,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 916,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 304,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5022,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2356,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5022
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:45:09 Kill function: install",
        "2019/10/30 21:45:09 Destroy() [SB 6]",
        "2019/10/30 21:45:09 Kill function: install2",
        "2019/10/30 21:45:09 Destroy() [SB 7]",
        "2019/10/30 21:45:09 Kill function: install3",
        "2019/10/30 21:45:09 Destroy() [SB 9]",
        "2019/10/30 21:45:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:45:10 remove worker.pid",
        "2019/10/30 21:45:10 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 0.17810559272766113,
      "total_seconds": 0.4108126163482666,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "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": 174,
        "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": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 174
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:45:10 remove worker.pid",
        "2019/10/30 21:45:10 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 0.8607137203216553,
      "total_seconds": 1.0902743339538574,
      "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": 8,
        "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": 856,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 691,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 856
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:45:11 remove worker.pid",
        "2019/10/30 21:45:11 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 39.98162579536438,
      "total_seconds": 40.241705656051636,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 225,
        "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": 116,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 90,
        "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": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 7992,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 311,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 116,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 116,
        "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": 5209,
        "web-request.cnt": 5,
        "web-request.ms-avg": 7992
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:45:51 remove worker.pid",
        "2019/10/30 21:45:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 5.117591857910156,
      "total_seconds": 5.341336965560913,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 142,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:45:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:45:57 remove worker.pid",
        "2019/10/30 21:45:57 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.25260615348816,
      "total_seconds": 10.4864661693573,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 0,
        "fork().cnt": 438,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:46:07 remove worker.pid",
        "2019/10/30 21:46:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.47187328338623,
      "total_seconds": 10.699673652648926,
      "stats": {
        "sandboxes_per_sec": 45.7
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 75,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 915,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 56,
        "fork().cnt": 457,
        "fork().ms-avg": 56,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:46:18 remove worker.pid",
        "2019/10/30 21:46:18 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.786685943603516,
      "total_seconds": 11.151818752288818,
      "stats": {
        "sandboxes_per_sec": 40.2
      },
      "ol-stats": {
        "Create().cnt": 435,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 435,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 435,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 434,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 435,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 837,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 435,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 435,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 435,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 434,
        "childExit().ms-avg": 0,
        "fork().cnt": 434,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 434,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 452,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 434,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:46:29 remove worker.pid",
        "2019/10/30 21:46:29 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "server_mode": "sock",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 11.037233114242554,
      "total_seconds": 11.408305406570435,
      "stats": {
        "sandboxes_per_sec": 41.7
      },
      "ol-stats": {
        "Create().cnt": 450,
        "Create().ms-avg": 130,
        "Create()/acquire-cgroup.cnt": 450,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 450,
        "Create()/acquire-mem.ms-avg": 73,
        "Create()/fork-proc.cnt": 449,
        "Create()/fork-proc.ms-avg": 54,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 450,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 450,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 450,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 450,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 449,
        "childExit().ms-avg": 59,
        "fork().cnt": 449,
        "fork().ms-avg": 54,
        "forkRequest.cnt": 449,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 467,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 449,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:46:40 remove worker.pid",
        "2019/10/30 21:46:40 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/tmp/tmpqlk8g628",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "registry_cache_ms": 3000
      },
      "seconds": 6.0283894538879395,
      "total_seconds": 6.274572849273682,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1720,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1723,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1720,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1719,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1720,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:46:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:46:47 remove worker.pid",
        "2019/10/30 21:46:47 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.045393943786621,
      "total_seconds": 15.276517868041992,
      "stats": {
        "reqs_per_sec": 291.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 4365,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4368,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4365,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4364,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4365,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:47:02 remove worker.pid",
        "2019/10/30 21:47:02 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.046363830566406,
      "total_seconds": 15.278022289276123,
      "stats": {
        "reqs_per_sec": 288.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 4320,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3974,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4320,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3970,
        "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": 4320,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:47:17 remove worker.pid",
        "2019/10/30 21:47:17 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.065747499465942,
      "total_seconds": 15.297365665435791,
      "stats": {
        "reqs_per_sec": 258.73333333333335
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3881,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2947,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3881,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2943,
        "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": 4,
        "web-request.cnt": 3881,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:47:33 remove worker.pid",
        "2019/10/30 21:47:33 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/tmp/tmp9zdhh5gd",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "mem_pool_mb": 500,
        "trace": {
          "cgroups": false,
          "evictor": false,
          "memory": false,
          "package": false
        },
        "registry_cache_ms": 5000
      },
      "seconds": 2.848830223083496,
      "total_seconds": 3.2857065200805664,
      "stats": {
        "reqs_per_sec": 35.102432420580016
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "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": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 56,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "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": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:47:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:47:36 remove worker.pid",
        "2019/10/30 21:47:36 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "sandbox": "sock",
        "registry": "/tmp/tmpazfebgyn",
        "sandbox_config": {},
        "docker_runtime": "",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "pip_mirror": "",
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 42.56575846672058,
      "total_seconds": 43.136114835739136,
      "stats": {
        "reqs_per_sec": 23.493077726411975
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/10/30 21:48:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/10/30 21:48:19 remove worker.pid",
        "2019/10/30 21:48:19 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 302.24459981918335
}