{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 2.2488696575164795,
      "total_seconds": 2.4688265323638916,
      "stats": {
        "pings_per_sec": 444.6719356224468
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:43:22 remove worker.pid",
        "2020/04/17 21:43:22 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 10.853434801101685,
      "total_seconds": 11.09673261642456,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 349,
        "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": 348,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2692,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 72,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1323,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2692
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:43:34 remove worker.pid",
        "2020/04/17 21:43:34 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 6.210510969161987,
      "total_seconds": 6.454260587692261,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "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": 141,
        "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": 1544,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "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": 963,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1544
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:43:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:43:40 remove worker.pid",
        "2020/04/17 21:43:40 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "docker",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 21.258609294891357,
      "total_seconds": 22.287244081497192,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 916,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 311,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5302,
        "Pause().cnt": 4,
        "Pause().ms-avg": 32,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2612,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5302
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:02 Kill function: install3",
        "2020/04/17 21:44:02 Destroy() [SB 9]",
        "2020/04/17 21:44:02 Kill function: echo",
        "2020/04/17 21:44:02 Destroy() [SB 0]",
        "2020/04/17 21:44:02 Kill function: install",
        "2020/04/17 21:44:02 Destroy() [SB 6]",
        "2020/04/17 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:02 remove worker.pid",
        "2020/04/17 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 0.18333888053894043,
      "total_seconds": 0.4159810543060303,
      "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": 3,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 5,
        "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": 179,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 3,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 2,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 179
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:03 remove worker.pid",
        "2020/04/17 21:44:03 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 0.8799681663513184,
      "total_seconds": 1.1154541969299316,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 876,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 709,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 876
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:04 remove worker.pid",
        "2020/04/17 21:44:04 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 29.05206608772278,
      "total_seconds": 29.317027807235718,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 99,
        "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": 4,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 152,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 5805,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 332,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 4,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3863,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5805
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:33 remove worker.pid",
        "2020/04/17 21:44:33 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": false,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 5.1282970905303955,
      "total_seconds": 5.255183696746826,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 144,
        "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": [
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:39 remove worker.pid",
        "2020/04/17 21:44:39 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 10.16779637336731,
      "total_seconds": 10.40619158744812,
      "stats": {
        "sandboxes_per_sec": 42.7
      },
      "ol-stats": {
        "Create().cnt": 428,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 428,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 428,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 427,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 428,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 428,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 428,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 428,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 427,
        "childExit().ms-avg": 0,
        "fork().cnt": 427,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 427,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 445,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 427,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:49 remove worker.pid",
        "2020/04/17 21:44:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 10.33247709274292,
      "total_seconds": 10.569905042648315,
      "stats": {
        "sandboxes_per_sec": 44.0
      },
      "ol-stats": {
        "Create().cnt": 441,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 441,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 441,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 440,
        "Create()/fork-proc.ms-avg": 72,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 441,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 881,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 441,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 441,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 441,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 440,
        "childExit().ms-avg": 76,
        "fork().cnt": 440,
        "fork().ms-avg": 71,
        "forkRequest.cnt": 440,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 458,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 440,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:44:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:44:59 remove worker.pid",
        "2020/04/17 21:44:59 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 10.773363590240479,
      "total_seconds": 11.126391410827637,
      "stats": {
        "sandboxes_per_sec": 41.9
      },
      "ol-stats": {
        "Create().cnt": 452,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 452,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 452,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 451,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 452,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 871,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 452,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 452,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 452,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 451,
        "childExit().ms-avg": 0,
        "fork().cnt": 451,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 451,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 469,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 451,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:45:11 remove worker.pid",
        "2020/04/17 21:45:11 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "fork": true,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 11.14340853691101,
      "total_seconds": 11.494534969329834,
      "stats": {
        "sandboxes_per_sec": 40.4
      },
      "ol-stats": {
        "Create().cnt": 437,
        "Create().ms-avg": 137,
        "Create()/acquire-cgroup.cnt": 437,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 437,
        "Create()/acquire-mem.ms-avg": 77,
        "Create()/fork-proc.cnt": 436,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 203,
        "Create()/make-root-fs.cnt": 437,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 841,
        "Destroy().ms-avg": 52,
        "Destroy()/detach-root.cnt": 437,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 437,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 437,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 436,
        "childExit().ms-avg": 61,
        "fork().cnt": 436,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 436,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 454,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 436,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:45:22 remove worker.pid",
        "2020/04/17 21:45:22 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry": "/tmp/tmpek6qvdxc"
      },
      "seconds": 6.033272743225098,
      "total_seconds": 6.277257919311523,
      "stats": null,
      "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": 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": 1705,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1708,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1705,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1704,
        "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": 1705,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:45:28 remove worker.pid",
        "2020/04/17 21:45:28 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.042035341262817,
      "total_seconds": 15.274529457092285,
      "stats": {
        "reqs_per_sec": 288.6666666666667
      },
      "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4330,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4333,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4330,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4329,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 4330,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:45:44 remove worker.pid",
        "2020/04/17 21:45:44 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.046574115753174,
      "total_seconds": 15.27856183052063,
      "stats": {
        "reqs_per_sec": 275.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4126,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3688,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4126,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3684,
        "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": 4126,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:45:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:45:59 remove worker.pid",
        "2020/04/17 21:45:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 15.071484327316284,
      "total_seconds": 15.305345296859741,
      "stats": {
        "reqs_per_sec": 256.46666666666664
      },
      "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": 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": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3847,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2859,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3847,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2855,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 3,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3847,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:46:14 remove worker.pid",
        "2020/04/17 21:46:14 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry": "/tmp/tmprq4na1e8"
      },
      "seconds": 3.078714370727539,
      "total_seconds": 3.5134499073028564,
      "stats": {
        "reqs_per_sec": 32.48136464504058
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 159,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 26,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 4,
        "evict.cnt": 58,
        "evict.ms-avg": 13,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 67,
        "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": 26
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:46:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:46:18 remove worker.pid",
        "2020/04/17 21:46:18 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "import_cache_tree": "",
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry": "/tmp/tmpmergdk27",
        "worker_port": "5000",
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000
      },
      "seconds": 45.98193979263306,
      "total_seconds": 46.54657292366028,
      "stats": {
        "reqs_per_sec": 21.74768182444371
      },
      "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": 143,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 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": 41
      },
      "errors": [],
      "worker_tail": [
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/17 21:47:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/17 21:47:04 remove worker.pid",
        "2020/04/17 21:47:04 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 294.6945469379425
}