{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "docker_runtime": ""
      },
      "seconds": 2.1306066513061523,
      "total_seconds": 2.441399097442627,
      "stats": {
        "pings_per_sec": 469.35451310852204
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:46:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:46:55 remove worker.pid",
        "2020/03/23 21:46:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "docker_runtime": ""
      },
      "seconds": 10.488890886306763,
      "total_seconds": 10.72745680809021,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 278,
        "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": 277,
        "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": 2608,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 74,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 8,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1356,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2608
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:47:06 remove worker.pid",
        "2020/03/23 21:47:06 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 6.420295715332031,
      "total_seconds": 6.656224250793457,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 91,
        "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": 136,
        "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": 1597,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1001,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1597
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:47:13 remove worker.pid",
        "2020/03/23 21:47:13 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/root/open-lambda/test-registry",
        "pip_mirror": "",
        "sandbox": "docker",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "features": {
          "import_cache": false,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "docker_runtime": ""
      },
      "seconds": 22.341002464294434,
      "total_seconds": 23.863224983215332,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 947,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 410,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5573,
        "Pause().cnt": 4,
        "Pause().ms-avg": 122,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 19,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2754,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5573
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:47:36 Kill function: install",
        "2020/03/23 21:47:36 Destroy() [SB 6]",
        "2020/03/23 21:47:36 Kill function: install2",
        "2020/03/23 21:47:36 Destroy() [SB 7]",
        "2020/03/23 21:47:36 Kill function: install3",
        "2020/03/23 21:47:36 Destroy() [SB 9]",
        "2020/03/23 21:47:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:47:37 remove worker.pid",
        "2020/03/23 21:47:37 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 0.19443440437316895,
      "total_seconds": 0.4252760410308838,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 84,
        "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": 152,
        "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": 190,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "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": 5,
        "web-request.cnt": 1,
        "web-request.ms-avg": 190
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:47:37 remove worker.pid",
        "2020/03/23 21:47:37 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 0.8018743991851807,
      "total_seconds": 1.0350863933563232,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "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": 132,
        "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": 798,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 643,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 798
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:47:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:47:38 remove worker.pid",
        "2020/03/23 21:47:38 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 60.34139394760132,
      "total_seconds": 60.59931826591492,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 109,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 16,
        "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": 12060,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 397,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 8259,
        "web-request.cnt": 5,
        "web-request.ms-avg": 12060
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:48:39 remove worker.pid",
        "2020/03/23 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "baseline": 0,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 5.109579563140869,
      "total_seconds": 5.2314839363098145,
      "stats": {
        "sandboxes_per_sec": 5.4
      },
      "ol-stats": {
        "Create().cnt": 27,
        "Create().ms-avg": 164,
        "Create()/acquire-cgroup.cnt": 27,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 27,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 27,
        "Create()/fresh-proc.ms-avg": 159,
        "Create()/make-root-fs.cnt": 27,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 54,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 27,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 27,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 27,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 44,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:48:44 remove worker.pid",
        "2020/03/23 21:48:44 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.151727437973022,
      "total_seconds": 10.382988214492798,
      "stats": {
        "sandboxes_per_sec": 49.9
      },
      "ol-stats": {
        "Create().cnt": 500,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 500,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 500,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 499,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 500,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 999,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 500,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 500,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 500,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 499,
        "childExit().ms-avg": 0,
        "fork().cnt": 499,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 499,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 517,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 499,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:48:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:48:54 remove worker.pid",
        "2020/03/23 21:48:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.317667245864868,
      "total_seconds": 10.559797048568726,
      "stats": {
        "sandboxes_per_sec": 48.3
      },
      "ol-stats": {
        "Create().cnt": 484,
        "Create().ms-avg": 66,
        "Create()/acquire-cgroup.cnt": 484,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 484,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 483,
        "Create()/fork-proc.ms-avg": 43,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 130,
        "Create()/make-root-fs.cnt": 484,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 967,
        "Destroy().ms-avg": 42,
        "Destroy()/detach-root.cnt": 484,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 484,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 484,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 483,
        "childExit().ms-avg": 43,
        "fork().cnt": 483,
        "fork().ms-avg": 43,
        "forkRequest.cnt": 483,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 501,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 483,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:49:05 remove worker.pid",
        "2020/03/23 21:49:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.931941032409668,
      "total_seconds": 11.266114234924316,
      "stats": {
        "sandboxes_per_sec": 48.6
      },
      "ol-stats": {
        "Create().cnt": 519,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 519,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 519,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 518,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 519,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1005,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 519,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 519,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 519,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 518,
        "childExit().ms-avg": 0,
        "fork().cnt": 518,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 518,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 536,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 518,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:49:16 remove worker.pid",
        "2020/03/23 21:49:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 11.047581672668457,
      "total_seconds": 11.390641450881958,
      "stats": {
        "sandboxes_per_sec": 41.3
      },
      "ol-stats": {
        "Create().cnt": 446,
        "Create().ms-avg": 131,
        "Create()/acquire-cgroup.cnt": 446,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 446,
        "Create()/acquire-mem.ms-avg": 77,
        "Create()/fork-proc.cnt": 445,
        "Create()/fork-proc.ms-avg": 50,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 446,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 859,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 446,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 446,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 446,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 445,
        "childExit().ms-avg": 54,
        "fork().cnt": 445,
        "fork().ms-avg": 50,
        "forkRequest.cnt": 445,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 463,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 445,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:49:27 remove worker.pid",
        "2020/03/23 21:49:27 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpc98b_n4s",
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 3000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "docker_runtime": ""
      },
      "seconds": 6.0312659740448,
      "total_seconds": 6.273668527603149,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 51,
        "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": 172,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1700,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1703,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1700,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1699,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1700,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:49:34 remove worker.pid",
        "2020/03/23 21:49:34 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.043140411376953,
      "total_seconds": 15.272125959396362,
      "stats": {
        "reqs_per_sec": 290.46666666666664
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4357,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4360,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4357,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4356,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4357,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:49:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:49:49 remove worker.pid",
        "2020/03/23 21:49:49 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.048617124557495,
      "total_seconds": 15.278046131134033,
      "stats": {
        "reqs_per_sec": 291.73333333333335
      },
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 129,
        "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": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4376,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3951,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4376,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3947,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4376,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:50:04 remove worker.pid",
        "2020/03/23 21:50:04 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.065797328948975,
      "total_seconds": 15.29637098312378,
      "stats": {
        "reqs_per_sec": 261.93333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3929,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2992,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3929,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2988,
        "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": 2,
        "web-request.cnt": 3929,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:50:19 remove worker.pid",
        "2020/03/23 21:50:19 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "registry": "/tmp/tmpxmx9bmh_",
        "pip_mirror": "",
        "sandbox": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "worker_port": "5000",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "cgroups": false,
          "package": false,
          "evictor": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "docker_runtime": ""
      },
      "seconds": 2.803478240966797,
      "total_seconds": 3.2486071586608887,
      "stats": {
        "reqs_per_sec": 35.67032126305627
      },
      "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": 134,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 156,
        "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": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 55,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "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": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:50:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:50:23 remove worker.pid",
        "2020/03/23 21:50:23 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "sandbox_config": {},
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "registry": "/tmp/tmpxz6kzqiy",
        "import_cache_tree": "",
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "mem_pool_mb": 500,
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 44.62395167350769,
      "total_seconds": 45.164286375045776,
      "stats": {
        "reqs_per_sec": 22.40951337459263
      },
      "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": 133,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 40,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "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": 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": 5,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 40
      },
      "errors": [],
      "worker_tail": [
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/23 21:51:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/23 21:51:08 remove worker.pid",
        "2020/03/23 21:51:08 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 386.6516418457031
}