{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 2.566396713256836,
      "total_seconds": 2.874681234359741,
      "stats": {
        "pings_per_sec": 389.65437634967503
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:50:14 remove worker.pid",
        "2021/03/05 21:50:14 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 16.87374758720398,
      "total_seconds": 17.110966444015503,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 586,
        "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": 584,
        "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": 4069,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 220,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 10,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1743,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4069
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:50:31 remove worker.pid",
        "2021/03/05 21:50:31 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 5.966623783111572,
      "total_seconds": 6.208701848983765,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1483,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 925,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1483
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:50:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:50:38 remove worker.pid",
        "2021/03/05 21:50:38 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "docker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 31.078967332839966,
      "total_seconds": 33.50331473350525,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1798,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 586,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7757,
        "Pause().cnt": 4,
        "Pause().ms-avg": 29,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2868,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7757
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:51:09 Kill function: install",
        "2021/03/05 21:51:09 Destroy() [SB 6]",
        "2021/03/05 21:51:10 Kill function: install2",
        "2021/03/05 21:51:10 Destroy() [SB 7]",
        "2021/03/05 21:51:11 Kill function: install3",
        "2021/03/05 21:51:11 Destroy() [SB 9]",
        "2021/03/05 21:51:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:51:11 remove worker.pid",
        "2021/03/05 21:51:11 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 0.1792616844177246,
      "total_seconds": 0.4103267192840576,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 175,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 1,
        "web-request.ms-avg": 175
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:51:11 remove worker.pid",
        "2021/03/05 21:51:11 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 0.8247990608215332,
      "total_seconds": 1.0534498691558838,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 75,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 821,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 662,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 821
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:51:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:51:12 remove worker.pid",
        "2021/03/05 21:51:12 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 78.84216141700745,
      "total_seconds": 79.55052781105042,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 171,
        "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": 240,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 14,
        "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": 1,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 15764,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 1448,
        "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": 144,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 8825,
        "web-request.cnt": 5,
        "web-request.ms-avg": 15764
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:52:32 remove worker.pid",
        "2021/03/05 21:52:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "seconds": 5,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "sock"
      },
      "seconds": 5.188636064529419,
      "total_seconds": 5.312163829803467,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 142,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:52:37 remove worker.pid",
        "2021/03/05 21:52:37 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "sock"
      },
      "seconds": 10.161005020141602,
      "total_seconds": 10.38782525062561,
      "stats": {
        "sandboxes_per_sec": 45.2
      },
      "ol-stats": {
        "Create().cnt": 453,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 453,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 453,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 452,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 453,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 905,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 453,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 453,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 453,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 452,
        "childExit().ms-avg": 0,
        "fork().cnt": 452,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 452,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 470,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 452,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:52:48 remove worker.pid",
        "2021/03/05 21:52:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 0,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "sock"
      },
      "seconds": 10.383312940597534,
      "total_seconds": 10.617270469665527,
      "stats": {
        "sandboxes_per_sec": 46.1
      },
      "ol-stats": {
        "Create().cnt": 462,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 462,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 462,
        "Create()/acquire-mem.ms-avg": 19,
        "Create()/fork-proc.cnt": 461,
        "Create()/fork-proc.ms-avg": 68,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 462,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 923,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 462,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 462,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 462,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 461,
        "childExit().ms-avg": 65,
        "fork().cnt": 461,
        "fork().ms-avg": 68,
        "forkRequest.cnt": 461,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 479,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 461,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:52:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:52:58 remove worker.pid",
        "2021/03/05 21:52:58 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "sock"
      },
      "seconds": 11.542358160018921,
      "total_seconds": 11.878130912780762,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 471,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 471,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 471,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 470,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 471,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 909,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 471,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 471,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 471,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 470,
        "childExit().ms-avg": 0,
        "fork().cnt": 470,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 470,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 488,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 470,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:53:10 remove worker.pid",
        "2021/03/05 21:53:10 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "seconds": 10,
        "baseline": 32,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "sock"
      },
      "seconds": 11.120944261550903,
      "total_seconds": 11.467255353927612,
      "stats": {
        "sandboxes_per_sec": 40.0
      },
      "ol-stats": {
        "Create().cnt": 433,
        "Create().ms-avg": 126,
        "Create()/acquire-cgroup.cnt": 433,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 433,
        "Create()/acquire-mem.ms-avg": 72,
        "Create()/fork-proc.cnt": 432,
        "Create()/fork-proc.ms-avg": 49,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 198,
        "Create()/make-root-fs.cnt": 433,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 833,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 433,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 433,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 433,
        "Destroy()/remove-root.ms-avg": 1,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 432,
        "childExit().ms-avg": 52,
        "fork().cnt": 432,
        "fork().ms-avg": 49,
        "forkRequest.cnt": 432,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 450,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 432,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:53:22 remove worker.pid",
        "2021/03/05 21:53:22 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp79nmh8sv",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 6.031783819198608,
      "total_seconds": 6.273821115493774,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 49,
        "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": 165,
        "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": 1589,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1592,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1589,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1588,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1589,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:53:28 remove worker.pid",
        "2021/03/05 21:53:28 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 15.041309595108032,
      "total_seconds": 15.27217960357666,
      "stats": {
        "reqs_per_sec": 277.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4158,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4161,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4158,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4157,
        "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": 4158,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:53:43 remove worker.pid",
        "2021/03/05 21:53:43 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 15.045223474502563,
      "total_seconds": 15.277587652206421,
      "stats": {
        "reqs_per_sec": 291.1333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4367,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3921,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4367,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3917,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4367,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:53:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:53:59 remove worker.pid",
        "2021/03/05 21:53:59 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 15.06494927406311,
      "total_seconds": 15.296130895614624,
      "stats": {
        "reqs_per_sec": 262.73333333333335
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 3941,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2978,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3941,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2974,
        "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": 5,
        "web-request.cnt": 3941,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:54:14 remove worker.pid",
        "2021/03/05 21:54:14 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpgx59anh9",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 2.7374444007873535,
      "total_seconds": 3.1846537590026855,
      "stats": {
        "reqs_per_sec": 36.53088682969723
      },
      "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": 135,
        "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": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "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": 23
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:54:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:54:17 remove worker.pid",
        "2021/03/05 21:54:17 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10
        },
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp1altfr9r",
        "sandbox_config": {},
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        },
        "import_cache_tree": "",
        "server_mode": "lambda"
      },
      "seconds": 43.19559025764465,
      "total_seconds": 43.803786754608154,
      "stats": {
        "reqs_per_sec": 23.15052764723034
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 979,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/05 21:55:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/05 21:55:01 remove worker.pid",
        "2021/03/05 21:55:01 exiting",
        ""
      ]
    }
  ],
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