{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 2.2308990955352783,
      "total_seconds": 2.5235438346862793,
      "stats": {
        "pings_per_sec": 448.2538869633513
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:43:49 remove worker.pid",
        "2019/11/09 21:43:49 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 9.011178493499756,
      "total_seconds": 9.250070333480835,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 231,
        "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": 229,
        "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": 2244,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 72,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1199,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2244
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:43:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:43:58 remove worker.pid",
        "2019/11/09 21:43:58 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 5.872247695922852,
      "total_seconds": 6.108757019042969,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1460,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "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": 910,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1460
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:44:04 remove worker.pid",
        "2019/11/09 21:44:04 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "docker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 20.185407161712646,
      "total_seconds": 21.21333932876587,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 877,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 259,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5035,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2411,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5035
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:44:25 Kill function: install",
        "2019/11/09 21:44:25 Destroy() [SB 6]",
        "2019/11/09 21:44:25 Kill function: install2",
        "2019/11/09 21:44:25 Destroy() [SB 7]",
        "2019/11/09 21:44:25 Kill function: install3",
        "2019/11/09 21:44:25 Destroy() [SB 9]",
        "2019/11/09 21:44:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:44:25 remove worker.pid",
        "2019/11/09 21:44:25 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 0.2063450813293457,
      "total_seconds": 0.438443660736084,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 91,
        "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": 165,
        "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": 202,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "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": 202
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:44:26 remove worker.pid",
        "2019/11/09 21:44:26 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 0.8299088478088379,
      "total_seconds": 1.0623676776885986,
      "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": 9,
        "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": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 663,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 9,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 826
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:44:27 remove worker.pid",
        "2019/11/09 21:44:27 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 29.462093353271484,
      "total_seconds": 29.708585739135742,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 115,
        "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": 158,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 14,
        "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": 5886,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 309,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3925,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5886
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:44:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:44:56 remove worker.pid",
        "2019/11/09 21:44:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 5.220170974731445,
      "total_seconds": 5.441533088684082,
      "stats": {
        "sandboxes_per_sec": 6.6
      },
      "ol-stats": {
        "Create().cnt": 33,
        "Create().ms-avg": 139,
        "Create()/acquire-cgroup.cnt": 33,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 33,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 33,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 33,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 66,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 33,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 33,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 33,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 50,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:02 remove worker.pid",
        "2019/11/09 21:45:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.164438486099243,
      "total_seconds": 10.390954494476318,
      "stats": {
        "sandboxes_per_sec": 43.3
      },
      "ol-stats": {
        "Create().cnt": 434,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 434,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 434,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 433,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 434,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 434,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 434,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 434,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 433,
        "childExit().ms-avg": 0,
        "fork().cnt": 433,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 433,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 451,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 433,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:12 remove worker.pid",
        "2019/11/09 21:45:12 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.378328084945679,
      "total_seconds": 10.605897188186646,
      "stats": {
        "sandboxes_per_sec": 46.6
      },
      "ol-stats": {
        "Create().cnt": 467,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 467,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 467,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 466,
        "Create()/fork-proc.ms-avg": 70,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 467,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 933,
        "Destroy().ms-avg": 55,
        "Destroy()/detach-root.cnt": 467,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 467,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 467,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 466,
        "childExit().ms-avg": 71,
        "fork().cnt": 466,
        "fork().ms-avg": 70,
        "forkRequest.cnt": 466,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 484,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 466,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:23 remove worker.pid",
        "2019/11/09 21:45:23 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 10.809668064117432,
      "total_seconds": 11.144432544708252,
      "stats": {
        "sandboxes_per_sec": 45.9
      },
      "ol-stats": {
        "Create().cnt": 492,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 492,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 492,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 491,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 492,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 951,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 492,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 492,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 492,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 491,
        "childExit().ms-avg": 0,
        "fork().cnt": 491,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 491,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 509,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 491,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:34 remove worker.pid",
        "2019/11/09 21:45:34 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "import_cache_tree": ""
      },
      "seconds": 11.064022779464722,
      "total_seconds": 11.412466764450073,
      "stats": {
        "sandboxes_per_sec": 42.5
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 117,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 70,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 43,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 883,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 49,
        "fork().cnt": 457,
        "fork().ms-avg": 43,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:45 remove worker.pid",
        "2019/11/09 21:45:45 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 3000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/tmp/tmphhwc3ofg",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 6.03247594833374,
      "total_seconds": 6.2727720737457275,
      "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": 142,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 1713,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1716,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1713,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1712,
        "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": 1713,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:45:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:45:52 remove worker.pid",
        "2019/11/09 21:45:52 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.042586326599121,
      "total_seconds": 15.273853302001953,
      "stats": {
        "reqs_per_sec": 289.46666666666664
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4342,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4345,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4342,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4341,
        "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": 4342,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:46:07 remove worker.pid",
        "2019/11/09 21:46:07 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.045870304107666,
      "total_seconds": 15.27661919593811,
      "stats": {
        "reqs_per_sec": 291.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 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": 4366,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3821,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4366,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3817,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4366,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:46:22 remove worker.pid",
        "2019/11/09 21:46:22 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "import_cache_tree": ""
      },
      "seconds": 15.064459562301636,
      "total_seconds": 15.296564102172852,
      "stats": {
        "reqs_per_sec": 268.46666666666664
      },
      "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": 8,
        "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": 5,
        "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": 4027,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3016,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4027,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3012,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 4027,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:46:38 remove worker.pid",
        "2019/11/09 21:46:38 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/tmp/tmppc04925f",
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 2.878624200820923,
      "total_seconds": 3.3177711963653564,
      "stats": {
        "reqs_per_sec": 34.739197029442444
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 6,
        "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": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 25,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 66,
        "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": 25
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:46:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:46:41 remove worker.pid",
        "2019/11/09 21:46:41 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "sandbox_config": {},
        "registry": "/tmp/tmp8cu9yge0",
        "import_cache_tree": ""
      },
      "seconds": 42.84538435935974,
      "total_seconds": 43.40322685241699,
      "stats": {
        "reqs_per_sec": 23.33975953765874
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 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": 38
      },
      "errors": [],
      "worker_tail": [
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/11/09 21:47:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/11/09 21:47:24 remove worker.pid",
        "2019/11/09 21:47:24 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 286.1932635307312
}