{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 2.281787157058716,
      "total_seconds": 2.4985573291778564,
      "stats": {
        "pings_per_sec": 438.2568630188171
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:14 remove worker.pid",
        "2020/06/01 21:43:14 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 10.266942739486694,
      "total_seconds": 10.509714841842651,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 294,
        "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": 292,
        "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": 2556,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 129,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1265,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2556
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:24 remove worker.pid",
        "2020/06/01 21:43:24 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 6.179988622665405,
      "total_seconds": 6.417748212814331,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "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": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 1537,
        "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": 7,
        "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": 960,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1537
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:31 remove worker.pid",
        "2020/06/01 21:43:31 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "docker",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 20.305065155029297,
      "total_seconds": 21.833611488342285,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 910,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 304,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5065,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2465,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5065
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:51 Kill function: install2",
        "2020/06/01 21:43:51 Destroy() [SB 7]",
        "2020/06/01 21:43:52 Kill function: install3",
        "2020/06/01 21:43:52 Destroy() [SB 9]",
        "2020/06/01 21:43:52 Kill function: echo",
        "2020/06/01 21:43:52 Destroy() [SB 0]",
        "2020/06/01 21:43:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:53 remove worker.pid",
        "2020/06/01 21:43:53 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 0.183563232421875,
      "total_seconds": 0.4157593250274658,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 179,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "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": 10,
        "web-request.cnt": 1,
        "web-request.ms-avg": 179
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:53 remove worker.pid",
        "2020/06/01 21:43:53 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 0.8306608200073242,
      "total_seconds": 1.0630619525909424,
      "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": 4,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 826,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 665,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 4,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 826
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:43:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:43:54 remove worker.pid",
        "2020/06/01 21:43:54 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 30.763535737991333,
      "total_seconds": 31.137518167495728,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 116,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 23,
        "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": 6148,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 262,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 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": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4123,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6148
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:44:25 remove worker.pid",
        "2020/06/01 21:44:25 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "sock"
      },
      "seconds": 5.116270065307617,
      "total_seconds": 5.239924907684326,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 142,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:44:31 remove worker.pid",
        "2020/06/01 21:44:31 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "sock"
      },
      "seconds": 10.182509422302246,
      "total_seconds": 10.419285774230957,
      "stats": {
        "sandboxes_per_sec": 45.3
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 0,
        "fork().cnt": 453,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:44:41 remove worker.pid",
        "2020/06/01 21:44:41 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "sock"
      },
      "seconds": 10.351912260055542,
      "total_seconds": 10.579441785812378,
      "stats": {
        "sandboxes_per_sec": 45.3
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 83,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 62,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 58,
        "fork().cnt": 453,
        "fork().ms-avg": 62,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:44:51 remove worker.pid",
        "2020/06/01 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "sock"
      },
      "seconds": 10.7891263961792,
      "total_seconds": 11.143953561782837,
      "stats": {
        "sandboxes_per_sec": 45.1
      },
      "ol-stats": {
        "Create().cnt": 484,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 484,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 484,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 483,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 484,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 935,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 484,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 484,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 484,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 483,
        "childExit().ms-avg": 0,
        "fork().cnt": 483,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 483,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 501,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 483,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:45:03 remove worker.pid",
        "2020/06/01 21:45:03 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "sock"
      },
      "seconds": 11.014219760894775,
      "total_seconds": 11.365139722824097,
      "stats": {
        "sandboxes_per_sec": 42.2
      },
      "ol-stats": {
        "Create().cnt": 455,
        "Create().ms-avg": 132,
        "Create()/acquire-cgroup.cnt": 455,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 455,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 454,
        "Create()/fork-proc.ms-avg": 54,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 164,
        "Create()/make-root-fs.cnt": 455,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 455,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 455,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 455,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 454,
        "childExit().ms-avg": 58,
        "fork().cnt": 454,
        "fork().ms-avg": 54,
        "forkRequest.cnt": 454,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 472,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 454,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:45:14 remove worker.pid",
        "2020/06/01 21:45:14 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry": "/tmp/tmpol1th7f1",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 6.0322229862213135,
      "total_seconds": 6.475472688674927,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1725,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1728,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1725,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1724,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1725,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:45:20 remove worker.pid",
        "2020/06/01 21:45:20 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 15.045931816101074,
      "total_seconds": 15.279629945755005,
      "stats": {
        "reqs_per_sec": 286.26666666666665
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 4294,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4297,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4294,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4293,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4294,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:45:36 remove worker.pid",
        "2020/06/01 21:45:36 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 15.049147844314575,
      "total_seconds": 15.281161069869995,
      "stats": {
        "reqs_per_sec": 291.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4367,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3993,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4367,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3989,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4367,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:45:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:45:51 remove worker.pid",
        "2020/06/01 21:45:51 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 15.070149898529053,
      "total_seconds": 15.301772117614746,
      "stats": {
        "reqs_per_sec": 264.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3969,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2953,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3969,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2949,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 3969,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:46:06 remove worker.pid",
        "2020/06/01 21:46:06 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry": "/tmp/tmpp5mvonqw",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 2.8257296085357666,
      "total_seconds": 3.2616777420043945,
      "stats": {
        "reqs_per_sec": 35.38952316537944
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 150,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 49,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:46:10 remove worker.pid",
        "2020/06/01 21:46:10 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry": "/tmp/tmpnwtj4mdc",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "import_cache_tree": "",
        "worker_port": "5000",
        "pip_mirror": "",
        "docker_runtime": "",
        "server_mode": "lambda"
      },
      "seconds": 43.19688940048218,
      "total_seconds": 43.760082960128784,
      "stats": {
        "reqs_per_sec": 23.149875861303105
      },
      "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": 160,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "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": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 11,
        "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": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/01 21:46:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/01 21:46:53 remove worker.pid",
        "2020/06/01 21:46:53 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 290.80172753334045
}