{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "registry_cache_ms": 5000
      },
      "seconds": 2.3148744106292725,
      "total_seconds": 2.4796266555786133,
      "stats": {
        "pings_per_sec": 431.99279363828055
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:47:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:47:51 remove worker.pid",
        "2021/05/07 21:47:51 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        }
      },
      "seconds": 22.62845778465271,
      "total_seconds": 22.871060132980347,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 998,
        "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": 996,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "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": 5617,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 359,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 192,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1860,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5617
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:14 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:48:14 remove worker.pid",
        "2021/05/07 21:48:14 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 6.120989799499512,
      "total_seconds": 6.359529495239258,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "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": 1517,
        "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": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 946,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1517
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:48:20 remove worker.pid",
        "2021/05/07 21:48:20 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "docker",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "registry_cache_ms": 5000
      },
      "seconds": 25.15012550354004,
      "total_seconds": 26.174132585525513,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1486,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 292,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6274,
        "Pause().cnt": 4,
        "Pause().ms-avg": 247,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2294,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6274
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:48:46 Kill function: install2",
        "2021/05/07 21:48:46 Destroy() [SB 7]",
        "2021/05/07 21:48:46 Kill function: install3",
        "2021/05/07 21:48:46 Destroy() [SB 9]",
        "2021/05/07 21:48:46 Kill function: echo",
        "2021/05/07 21:48:46 Destroy() [SB 0]",
        "2021/05/07 21:48:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:48:47 remove worker.pid",
        "2021/05/07 21:48:47 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 0.17652511596679688,
      "total_seconds": 0.40836524963378906,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 172,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 172
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:48:47 remove worker.pid",
        "2021/05/07 21:48:47 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 0.8427681922912598,
      "total_seconds": 1.0762827396392822,
      "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": 136,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 838,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 677,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 838
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:48:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:48:48 remove worker.pid",
        "2021/05/07 21:48:48 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "registry_cache_ms": 5000
      },
      "seconds": 62.28594398498535,
      "total_seconds": 62.56399846076965,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 113,
        "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": 5,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 162,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 6,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 12453,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 692,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "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": 7311,
        "web-request.cnt": 5,
        "web-request.ms-avg": 12453
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:49:51 remove worker.pid",
        "2021/05/07 21:49:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 5,
        "procs": 1,
        "fork": false
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 5.161769866943359,
      "total_seconds": 5.385365724563599,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 152,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 5,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:49:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:49:56 remove worker.pid",
        "2021/05/07 21:49:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "procs": 1,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.160592794418335,
      "total_seconds": 10.407549142837524,
      "stats": {
        "sandboxes_per_sec": 43.3
      },
      "ol-stats": {
        "Create().cnt": 434,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 434,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 434,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 433,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 434,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 867,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 434,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 434,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 434,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 433,
        "childExit().ms-avg": 0,
        "fork().cnt": 433,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 433,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 451,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 433,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:50:06 remove worker.pid",
        "2021/05/07 21:50:06 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "seconds": 10,
        "procs": 15,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.379366397857666,
      "total_seconds": 10.61437201499939,
      "stats": {
        "sandboxes_per_sec": 44.8
      },
      "ol-stats": {
        "Create().cnt": 449,
        "Create().ms-avg": 85,
        "Create()/acquire-cgroup.cnt": 449,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 449,
        "Create()/acquire-mem.ms-avg": 16,
        "Create()/fork-proc.cnt": 448,
        "Create()/fork-proc.ms-avg": 63,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 449,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 897,
        "Destroy().ms-avg": 48,
        "Destroy()/detach-root.cnt": 449,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 449,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 449,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 448,
        "childExit().ms-avg": 62,
        "fork().cnt": 448,
        "fork().ms-avg": 63,
        "forkRequest.cnt": 448,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 466,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 448,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:50:17 remove worker.pid",
        "2021/05/07 21:50:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "procs": 1,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 10.783236742019653,
      "total_seconds": 11.118674516677856,
      "stats": {
        "sandboxes_per_sec": 44.9
      },
      "ol-stats": {
        "Create().cnt": 482,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 482,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 482,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 481,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 482,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 931,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 482,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 482,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 482,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 481,
        "childExit().ms-avg": 0,
        "fork().cnt": 481,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 481,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 499,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 481,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:50:28 remove worker.pid",
        "2021/05/07 21:50:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "seconds": 10,
        "procs": 15,
        "fork": true
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 11.180967092514038,
      "total_seconds": 11.636006116867065,
      "stats": {
        "sandboxes_per_sec": 37.9
      },
      "ol-stats": {
        "Create().cnt": 412,
        "Create().ms-avg": 138,
        "Create()/acquire-cgroup.cnt": 412,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 412,
        "Create()/acquire-mem.ms-avg": 77,
        "Create()/fork-proc.cnt": 411,
        "Create()/fork-proc.ms-avg": 54,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 272,
        "Create()/make-root-fs.cnt": 412,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 791,
        "Destroy().ms-avg": 53,
        "Destroy()/detach-root.cnt": 412,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 412,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 412,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 411,
        "childExit().ms-avg": 60,
        "fork().cnt": 411,
        "fork().ms-avg": 54,
        "forkRequest.cnt": 411,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 429,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 411,
        "move-to-cg-after-fork.ms-avg": 4
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:50:40 remove worker.pid",
        "2021/05/07 21:50:40 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/tmp/tmpa57wt2de",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "registry_cache_ms": 3000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 6.030980587005615,
      "total_seconds": 6.2829270362854,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1690,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1693,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1690,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1689,
        "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": 3,
        "web-request.cnt": 1690,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:50:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:50:46 remove worker.pid",
        "2021/05/07 21:50:46 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.047402381896973,
      "total_seconds": 15.278897285461426,
      "stats": {
        "reqs_per_sec": 286.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 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": 4299,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4302,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4299,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4298,
        "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": 4299,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:51:01 remove worker.pid",
        "2021/05/07 21:51:01 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.047117471694946,
      "total_seconds": 15.27784252166748,
      "stats": {
        "reqs_per_sec": 286.46666666666664
      },
      "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": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4297,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3842,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4297,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3838,
        "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": 4297,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:51:17 remove worker.pid",
        "2021/05/07 21:51:17 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 15.065703630447388,
      "total_seconds": 15.298805236816406,
      "stats": {
        "reqs_per_sec": 260.4
      },
      "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": 4,
        "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": 3906,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2961,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3906,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2957,
        "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": 5,
        "web-request.cnt": 3906,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:51:32 remove worker.pid",
        "2021/05/07 21:51:32 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "registry": "/tmp/tmp3ecad587",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "registry_cache_ms": 5000
      },
      "seconds": 2.8429877758026123,
      "total_seconds": 3.277468204498291,
      "stats": {
        "reqs_per_sec": 35.17456692461716
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 159,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 58,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 67,
        "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": 24
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:51:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:51:35 remove worker.pid",
        "2021/05/07 21:51:35 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "trace": {
          "package": false,
          "memory": false,
          "cgroups": false,
          "evictor": false
        },
        "import_cache_tree": "",
        "registry": "/tmp/tmpary66nbj",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "sandbox": "sock",
        "pip_mirror": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "docker_runtime": "",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        }
      },
      "seconds": 45.38878083229065,
      "total_seconds": 46.082836627960205,
      "stats": {
        "reqs_per_sec": 22.0318917040712
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 41,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "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": 12,
        "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": 41
      },
      "errors": [],
      "worker_tail": [
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/05/07 21:52:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/05/07 21:52:21 remove worker.pid",
        "2021/05/07 21:52:21 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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