{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "evictor": false,
          "package": false
        },
        "import_cache_tree": ""
      },
      "seconds": 2.1649374961853027,
      "total_seconds": 2.2508461475372314,
      "stats": {
        "pings_per_sec": 461.9115253550013
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:45:44 remove worker.pid",
        "2021/04/10 21:45:44 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": ""
      },
      "seconds": 10.669484615325928,
      "total_seconds": 10.909677028656006,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 286,
        "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": 284,
        "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": 2659,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 179,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1315,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2659
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:45:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:45:55 remove worker.pid",
        "2021/04/10 21:45:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 8.086321115493774,
      "total_seconds": 8.331594705581665,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 142,
        "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": 8,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 49,
        "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": 1991,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 45,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 7,
        "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": 1260,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1991
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:46:03 remove worker.pid",
        "2021/04/10 21:46:03 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "docker",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "memory": false,
          "cgroups": false,
          "evictor": false,
          "package": false
        },
        "import_cache_tree": ""
      },
      "seconds": 21.63971495628357,
      "total_seconds": 23.068763256072998,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1102,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 327,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5398,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2377,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5398
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:46:25 Kill function: install",
        "2021/04/10 21:46:25 Destroy() [SB 6]",
        "2021/04/10 21:46:26 Kill function: install2",
        "2021/04/10 21:46:26 Destroy() [SB 7]",
        "2021/04/10 21:46:26 Kill function: install3",
        "2021/04/10 21:46:26 Destroy() [SB 9]",
        "2021/04/10 21:46:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:46:26 remove worker.pid",
        "2021/04/10 21:46:26 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 1.6774702072143555,
      "total_seconds": 1.9093894958496094,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 826,
        "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": 1637,
        "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": 1673,
        "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": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 1673
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:46:28 remove worker.pid",
        "2021/04/10 21:46:28 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 0.9321310520172119,
      "total_seconds": 1.1646816730499268,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 928,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 763,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 928
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:46:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:46:30 remove worker.pid",
        "2021/04/10 21:46:30 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 57.49031925201416,
      "total_seconds": 57.78509473800659,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 95,
        "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": 141,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 11494,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 374,
        "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": 3,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 6919,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11494
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:47:27 remove worker.pid",
        "2021/04/10 21:47:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "fork": false,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 5.220175504684448,
      "total_seconds": 5.441922903060913,
      "stats": {
        "sandboxes_per_sec": 5.6
      },
      "ol-stats": {
        "Create().cnt": 28,
        "Create().ms-avg": 165,
        "Create()/acquire-cgroup.cnt": 28,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 28,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 28,
        "Create()/fresh-proc.ms-avg": 160,
        "Create()/make-root-fs.cnt": 28,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 56,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 28,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 28,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 28,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 45,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:47:33 remove worker.pid",
        "2021/04/10 21:47:33 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 10.158107280731201,
      "total_seconds": 10.38529658317566,
      "stats": {
        "sandboxes_per_sec": 39.6
      },
      "ol-stats": {
        "Create().cnt": 397,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 397,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 397,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 396,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 397,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 793,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 397,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 397,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 397,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 396,
        "childExit().ms-avg": 0,
        "fork().cnt": 396,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 396,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 414,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 396,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:47:43 remove worker.pid",
        "2021/04/10 21:47:43 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 10.380409717559814,
      "total_seconds": 10.607882738113403,
      "stats": {
        "sandboxes_per_sec": 44.0
      },
      "ol-stats": {
        "Create().cnt": 441,
        "Create().ms-avg": 95,
        "Create()/acquire-cgroup.cnt": 441,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 441,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 440,
        "Create()/fork-proc.ms-avg": 75,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 441,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 881,
        "Destroy().ms-avg": 58,
        "Destroy()/detach-root.cnt": 441,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 441,
        "Destroy()/kill-procs.ms-avg": 13,
        "Destroy()/remove-root.cnt": 441,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 440,
        "childExit().ms-avg": 73,
        "fork().cnt": 440,
        "fork().ms-avg": 75,
        "forkRequest.cnt": 440,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 458,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 440,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:47:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:47:54 remove worker.pid",
        "2021/04/10 21:47:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 10.894944190979004,
      "total_seconds": 11.23890209197998,
      "stats": {
        "sandboxes_per_sec": 38.9
      },
      "ol-stats": {
        "Create().cnt": 422,
        "Create().ms-avg": 8,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 422,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 811,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 422,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 422,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 422,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 421,
        "childExit().ms-avg": 0,
        "fork().cnt": 421,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 421,
        "forkRequest.ms-avg": 5,
        "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": [
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:48:05 remove worker.pid",
        "2021/04/10 21:48:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "memory": false,
          "package": false,
          "evictor": false
        },
        "import_cache_tree": ""
      },
      "seconds": 11.178850173950195,
      "total_seconds": 11.541877031326294,
      "stats": {
        "sandboxes_per_sec": 38.3
      },
      "ol-stats": {
        "Create().cnt": 416,
        "Create().ms-avg": 144,
        "Create()/acquire-cgroup.cnt": 416,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 416,
        "Create()/acquire-mem.ms-avg": 80,
        "Create()/fork-proc.cnt": 415,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 245,
        "Create()/make-root-fs.cnt": 416,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 799,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 416,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 416,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 416,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 415,
        "childExit().ms-avg": 61,
        "fork().cnt": 415,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 415,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 433,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 415,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:48:17 remove worker.pid",
        "2021/04/10 21:48:17 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "registry_cache_ms": 3000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/tmp/tmpxhn5yf0m",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": ""
      },
      "seconds": 6.110849142074585,
      "total_seconds": 6.356799602508545,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "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": 1504,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1507,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1504,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1503,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 12,
        "web-request.cnt": 1504,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:48:23 remove worker.pid",
        "2021/04/10 21:48:23 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 15.034537076950073,
      "total_seconds": 15.267527341842651,
      "stats": {
        "reqs_per_sec": 278.06666666666666
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 74,
        "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 35,
        "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": 4171,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4174,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4171,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4170,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 4171,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:48:38 remove worker.pid",
        "2021/04/10 21:48:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 15.040264129638672,
      "total_seconds": 15.27018141746521,
      "stats": {
        "reqs_per_sec": 281.46666666666664
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 44,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 4222,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3814,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4222,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3810,
        "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": 4222,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:48:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:48:53 remove worker.pid",
        "2021/04/10 21:48:53 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 15.057433605194092,
      "total_seconds": 15.28909158706665,
      "stats": {
        "reqs_per_sec": 248.26666666666668
      },
      "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": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3724,
        "LambdaFunc.Invoke.ms-avg": 3,
        "Pause().cnt": 2484,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3724,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2480,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 3,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 3724,
        "web-request.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:49:09 remove worker.pid",
        "2021/04/10 21:49:09 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/tmp/tmpmnpo1udg",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": ""
      },
      "seconds": 3.049412488937378,
      "total_seconds": 3.4971189498901367,
      "stats": {
        "reqs_per_sec": 32.7934456642451
      },
      "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": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "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": 26,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 7,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 56,
        "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": 26
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:49:13 remove worker.pid",
        "2021/04/10 21:49:13 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "registry_cache_ms": 5000,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry": "/tmp/tmpbep6jobd",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "sandbox_config": {},
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "worker_port": "5000",
        "trace": {
          "cgroups": false,
          "evictor": false,
          "package": false,
          "memory": false
        },
        "import_cache_tree": ""
      },
      "seconds": 43.77379322052002,
      "total_seconds": 44.309309005737305,
      "stats": {
        "reqs_per_sec": 22.844732556971554
      },
      "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": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/04/10 21:49:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/04/10 21:49:57 remove worker.pid",
        "2021/04/10 21:49:57 exiting",
        ""
      ]
    }
  ],
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