{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 2.263627290725708,
      "total_seconds": 2.588541269302368,
      "stats": {
        "pings_per_sec": 441.7733058289522
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:50:31 remove worker.pid",
        "2021/03/15 21:50:31 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 16.513686180114746,
      "total_seconds": 16.753175735473633,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 558,
        "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": 557,
        "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": 3957,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 87,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 24,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1784,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3957
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:50:48 remove worker.pid",
        "2021/03/15 21:50:48 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 8.201393365859985,
      "total_seconds": 8.445047855377197,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "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": 2042,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "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": 1295,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2042
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:50:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:50:56 remove worker.pid",
        "2021/03/15 21:50:56 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "docker",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 32.900219440460205,
      "total_seconds": 34.3277850151062,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1639,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 440,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 8213,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3351,
        "web-request.cnt": 4,
        "web-request.ms-avg": 8213
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:51:30 Kill function: install",
        "2021/03/15 21:51:30 Destroy() [SB 6]",
        "2021/03/15 21:51:30 Kill function: install2",
        "2021/03/15 21:51:30 Destroy() [SB 7]",
        "2021/03/15 21:51:30 Kill function: install3",
        "2021/03/15 21:51:30 Destroy() [SB 9]",
        "2021/03/15 21:51:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:51:31 remove worker.pid",
        "2021/03/15 21:51:31 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 4.629026889801025,
      "total_seconds": 4.859262704849243,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 2301,
        "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": 4586,
        "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": 4625,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 14,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 4625
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:51:35 remove worker.pid",
        "2021/03/15 21:51:35 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 0.899925947189331,
      "total_seconds": 1.132997751235962,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 896,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 732,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 896
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:51:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:51:37 remove worker.pid",
        "2021/03/15 21:51:37 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 53.843172550201416,
      "total_seconds": 54.07318377494812,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 138,
        "Create()/acquire-cgroup.cnt": 14,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 14,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 46,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 10764,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 506,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 31,
        "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": 25,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 6308,
        "web-request.cnt": 5,
        "web-request.ms-avg": 10764
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:52:31 remove worker.pid",
        "2021/03/15 21:52:31 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "baseline": 0,
        "fork": false,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 5.0618438720703125,
      "total_seconds": 5.185431003570557,
      "stats": {
        "sandboxes_per_sec": 3.4
      },
      "ol-stats": {
        "Create().cnt": 17,
        "Create().ms-avg": 264,
        "Create()/acquire-cgroup.cnt": 17,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 17,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 17,
        "Create()/fresh-proc.ms-avg": 259,
        "Create()/make-root-fs.cnt": 17,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 34,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 17,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 17,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 17,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 34,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:52:36 remove worker.pid",
        "2021/03/15 21:52:36 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.160905599594116,
      "total_seconds": 10.394931316375732,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 422,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 422,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 422,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 421,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 422,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 843,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 422,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 422,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 422,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 421,
        "childExit().ms-avg": 0,
        "fork().cnt": 421,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 421,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 439,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 421,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:52:46 remove worker.pid",
        "2021/03/15 21:52:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 0,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.34583854675293,
      "total_seconds": 10.57384443283081,
      "stats": {
        "sandboxes_per_sec": 41.5
      },
      "ol-stats": {
        "Create().cnt": 416,
        "Create().ms-avg": 88,
        "Create()/acquire-cgroup.cnt": 416,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 416,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 415,
        "Create()/fork-proc.ms-avg": 66,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 416,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 831,
        "Destroy().ms-avg": 55,
        "Destroy()/detach-root.cnt": 416,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 416,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 416,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 415,
        "childExit().ms-avg": 68,
        "fork().cnt": 415,
        "fork().ms-avg": 66,
        "forkRequest.cnt": 415,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 433,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 415,
        "move-to-cg-after-fork.ms-avg": 4
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:52:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:52:57 remove worker.pid",
        "2021/03/15 21:52:57 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 10.825042009353638,
      "total_seconds": 11.184232711791992,
      "stats": {
        "sandboxes_per_sec": 39.8
      },
      "ol-stats": {
        "Create().cnt": 431,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 431,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 431,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 430,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 431,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 829,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 431,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 431,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 431,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 430,
        "childExit().ms-avg": 0,
        "fork().cnt": 430,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 430,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 448,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 430,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:53:08 remove worker.pid",
        "2021/03/15 21:53:08 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "baseline": 32,
        "fork": true,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 11.109005451202393,
      "total_seconds": 11.696930646896362,
      "stats": {
        "sandboxes_per_sec": 39.4
      },
      "ol-stats": {
        "Create().cnt": 427,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 427,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 427,
        "Create()/acquire-mem.ms-avg": 82,
        "Create()/fork-proc.cnt": 426,
        "Create()/fork-proc.ms-avg": 52,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 179,
        "Create()/make-root-fs.cnt": 427,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 821,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 427,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 427,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 427,
        "Destroy()/remove-root.ms-avg": 1,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 426,
        "childExit().ms-avg": 53,
        "fork().cnt": 426,
        "fork().ms-avg": 52,
        "forkRequest.cnt": 426,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 444,
        "fresh-cgroup.ms-avg": 6,
        "move-to-cg-after-fork.cnt": 426,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:53:20 remove worker.pid",
        "2021/03/15 21:53:20 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "sandbox_config": {},
        "registry": "/tmp/tmpbh1uj1_1",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 6.031177043914795,
      "total_seconds": 6.278432369232178,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 53,
        "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": 180,
        "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": 1661,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1664,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1661,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1660,
        "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": 2,
        "web-request.cnt": 1661,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:53:26 remove worker.pid",
        "2021/03/15 21:53:26 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.04028058052063,
      "total_seconds": 15.272513389587402,
      "stats": {
        "reqs_per_sec": 283.3333333333333
      },
      "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": 138,
        "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": 4250,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4253,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4250,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4249,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4250,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:53:42 remove worker.pid",
        "2021/03/15 21:53:42 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.037626028060913,
      "total_seconds": 15.271536350250244,
      "stats": {
        "reqs_per_sec": 283.2
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4248,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3841,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4248,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3837,
        "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": 4248,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:53:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:53:57 remove worker.pid",
        "2021/03/15 21:53:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 15.061000108718872,
      "total_seconds": 15.294458389282227,
      "stats": {
        "reqs_per_sec": 251.46666666666667
      },
      "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 3772,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2961,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3772,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2957,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 3772,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:54:13 remove worker.pid",
        "2021/03/15 21:54:13 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "pip_mirror": "",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "registry": "/tmp/tmp51n_2htf",
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 2.9865384101867676,
      "total_seconds": 3.420639991760254,
      "stats": {
        "reqs_per_sec": 33.48385606753509
      },
      "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": 155,
        "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": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 7,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 25
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:54:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:54:16 remove worker.pid",
        "2021/03/15 21:54:16 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "sandbox": "sock",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0
        },
        "server_mode": "lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "package": false,
          "memory": false
        },
        "registry": "/tmp/tmp4pto5724",
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox_config": {},
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "mem_pool_mb": 500,
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "import_cache_tree": ""
      },
      "seconds": 44.28901433944702,
      "total_seconds": 45.64120864868164,
      "stats": {
        "reqs_per_sec": 22.578977587423985
      },
      "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": 139,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 40,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 40
      },
      "errors": [],
      "worker_tail": [
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/15 21:55:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/15 21:55:02 remove worker.pid",
        "2021/03/15 21:55:02 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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