{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.1637516021728516,
      "total_seconds": 2.2788596153259277,
      "stats": {
        "pings_per_sec": 462.1645872053157
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:43:35 remove worker.pid",
        "2020/06/18 21:43:35 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 10.235088109970093,
      "total_seconds": 10.473774433135986,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 285,
        "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": 276,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 8,
        "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": 2550,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 67,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1316,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2550
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:43:46 remove worker.pid",
        "2020/06/18 21:43:46 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 6.36322546005249,
      "total_seconds": 6.600674152374268,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 1582,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 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": 989,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1582
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:43:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:43:53 remove worker.pid",
        "2020/06/18 21:43:53 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "sandbox": "docker",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 20.189135551452637,
      "total_seconds": 21.212919235229492,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 922,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 242,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5035,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2453,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5035
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:44:13 Kill function: install",
        "2020/06/18 21:44:13 Destroy() [SB 6]",
        "2020/06/18 21:44:13 Kill function: install2",
        "2020/06/18 21:44:13 Destroy() [SB 7]",
        "2020/06/18 21:44:14 Kill function: install3",
        "2020/06/18 21:44:14 Destroy() [SB 9]",
        "2020/06/18 21:44:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:44:14 remove worker.pid",
        "2020/06/18 21:44:14 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 0.19322419166564941,
      "total_seconds": 0.42506837844848633,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 85,
        "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": 155,
        "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": 189,
        "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": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 189
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:44:14 remove worker.pid",
        "2020/06/18 21:44:14 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 0.8389875888824463,
      "total_seconds": 1.0711803436279297,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 835,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 674,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 835
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:44:15 remove worker.pid",
        "2020/06/18 21:44:15 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 33.45720338821411,
      "total_seconds": 33.71145844459534,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 225,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 151,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 129,
        "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": 1,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 6687,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 358,
        "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": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 4242,
        "web-request.cnt": 5,
        "web-request.ms-avg": 6687
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:44:49 remove worker.pid",
        "2020/06/18 21:44:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 5.198079586029053,
      "total_seconds": 5.321549892425537,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 145,
        "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": 140,
        "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": [
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:44:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:44:55 remove worker.pid",
        "2020/06/18 21:44:55 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.161709070205688,
      "total_seconds": 10.388547658920288,
      "stats": {
        "sandboxes_per_sec": 40.7
      },
      "ol-stats": {
        "Create().cnt": 408,
        "Create().ms-avg": 12,
        "Create()/acquire-cgroup.cnt": 408,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 408,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 407,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 408,
        "Create()/make-root-fs.ms-avg": 5,
        "Destroy().cnt": 815,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 408,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 408,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 408,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 407,
        "childExit().ms-avg": 0,
        "fork().cnt": 407,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 407,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 425,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 407,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:45:05 remove worker.pid",
        "2020/06/18 21:45:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.342836856842041,
      "total_seconds": 10.569899797439575,
      "stats": {
        "sandboxes_per_sec": 46.8
      },
      "ol-stats": {
        "Create().cnt": 469,
        "Create().ms-avg": 79,
        "Create()/acquire-cgroup.cnt": 469,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 469,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 468,
        "Create()/fork-proc.ms-avg": 61,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 469,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 937,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 469,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 469,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 469,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 468,
        "childExit().ms-avg": 59,
        "fork().cnt": 468,
        "fork().ms-avg": 61,
        "forkRequest.cnt": 468,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 486,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 468,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:45:16 remove worker.pid",
        "2020/06/18 21:45:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.761889696121216,
      "total_seconds": 11.113384485244751,
      "stats": {
        "sandboxes_per_sec": 48.1
      },
      "ol-stats": {
        "Create().cnt": 514,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 514,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 514,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 513,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 514,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 995,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 514,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 514,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 514,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 513,
        "childExit().ms-avg": 0,
        "fork().cnt": 513,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 513,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 531,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 513,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:45:27 remove worker.pid",
        "2020/06/18 21:45:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.972014665603638,
      "total_seconds": 11.427536964416504,
      "stats": {
        "sandboxes_per_sec": 43.0
      },
      "ol-stats": {
        "Create().cnt": 463,
        "Create().ms-avg": 115,
        "Create()/acquire-cgroup.cnt": 463,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 463,
        "Create()/acquire-mem.ms-avg": 66,
        "Create()/fork-proc.cnt": 462,
        "Create()/fork-proc.ms-avg": 44,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 463,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 893,
        "Destroy().ms-avg": 41,
        "Destroy()/detach-root.cnt": 463,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 463,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 463,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 462,
        "childExit().ms-avg": 49,
        "fork().cnt": 462,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 462,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 480,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 462,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:45:38 remove worker.pid",
        "2020/06/18 21:45:38 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/tmp/tmp79bfn11y",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 3000,
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        }
      },
      "seconds": 6.029677152633667,
      "total_seconds": 6.379281520843506,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 1619,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1622,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1619,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1618,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1619,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:45:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:45:45 remove worker.pid",
        "2020/06/18 21:45:45 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.042376279830933,
      "total_seconds": 15.27239465713501,
      "stats": {
        "reqs_per_sec": 279.4
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 142,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 4191,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4194,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4191,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4190,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4191,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:46:00 remove worker.pid",
        "2020/06/18 21:46:00 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.047349214553833,
      "total_seconds": 15.278306245803833,
      "stats": {
        "reqs_per_sec": 286.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 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": 4290,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3896,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4290,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3892,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4290,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:46:15 remove worker.pid",
        "2020/06/18 21:46:15 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.065244436264038,
      "total_seconds": 15.296399116516113,
      "stats": {
        "reqs_per_sec": 268.8
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "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": 4032,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2970,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4032,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2966,
        "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": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 4032,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:46:31 remove worker.pid",
        "2020/06/18 21:46:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/tmp/tmpwqurrj42",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "docker_runtime": "",
        "pip_mirror": "",
        "sandbox": "sock",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        }
      },
      "seconds": 2.810854911804199,
      "total_seconds": 3.2556569576263428,
      "stats": {
        "reqs_per_sec": 35.57670890267634
      },
      "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": 140,
        "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": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 55,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 69,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:46:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:46:34 remove worker.pid",
        "2020/06/18 21:46:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "trace": {
          "evictor": false,
          "package": false,
          "cgroups": false,
          "memory": false
        },
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "registry": "/tmp/tmpsw2gltn4",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "pip_mirror": "",
        "sandbox": "sock",
        "docker_runtime": "",
        "sandbox_config": {},
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "server_mode": "lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 42.94570541381836,
      "total_seconds": 43.508713483810425,
      "stats": {
        "reqs_per_sec": 23.285271737413048
      },
      "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": 143,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1981,
        "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": 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": 980,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/18 21:47:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/18 21:47:17 remove worker.pid",
        "2020/06/18 21:47:17 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 299.099582195282
}