{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 2.284701108932495,
      "total_seconds": 2.7938854694366455,
      "stats": {
        "pings_per_sec": 437.6979424783032
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:45:19 remove worker.pid",
        "2021/01/21 21:45:19 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 13.331218242645264,
      "total_seconds": 13.568527936935425,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 403,
        "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": 397,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 5,
        "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": 3320,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 322,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 9,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1457,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3320
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:45:32 remove worker.pid",
        "2021/01/21 21:45:32 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 6.923692226409912,
      "total_seconds": 7.162250518798828,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 91,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1723,
        "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": 6,
        "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": 1085,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1723
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:45:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:45:40 remove worker.pid",
        "2021/01/21 21:45:40 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "docker",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 21.94695019721985,
      "total_seconds": 22.974573612213135,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1297,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 283,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5476,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2036,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5476
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:46:02 Kill function: install2",
        "2021/01/21 21:46:02 Destroy() [SB 7]",
        "2021/01/21 21:46:02 Kill function: install3",
        "2021/01/21 21:46:02 Destroy() [SB 9]",
        "2021/01/21 21:46:02 Kill function: echo",
        "2021/01/21 21:46:02 Destroy() [SB 0]",
        "2021/01/21 21:46:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:46:02 remove worker.pid",
        "2021/01/21 21:46:02 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 0.17335772514343262,
      "total_seconds": 0.40465331077575684,
      "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": 169,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 169
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:46:03 remove worker.pid",
        "2021/01/21 21:46:03 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 0.9582128524780273,
      "total_seconds": 1.1902134418487549,
      "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": 5,
        "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": 954,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 654,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 141,
        "web-request.cnt": 1,
        "web-request.ms-avg": 954
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:46:04 remove worker.pid",
        "2021/01/21 21:46:04 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 45.85019874572754,
      "total_seconds": 46.12450814247131,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 110,
        "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": 164,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 1,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 1,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9166,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 709,
        "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": 6,
        "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": 5,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 5255,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9166
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:46:50 remove worker.pid",
        "2021/01/21 21:46:50 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "baseline": 0,
        "fork": false
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 5.066709280014038,
      "total_seconds": 5.189300060272217,
      "stats": {
        "sandboxes_per_sec": 5.6
      },
      "ol-stats": {
        "Create().cnt": 28,
        "Create().ms-avg": 148,
        "Create()/acquire-cgroup.cnt": 28,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 28,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 28,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 28,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 56,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 28,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 28,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 28,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 45,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:46:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:46:56 remove worker.pid",
        "2021/01/21 21:46:56 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.154721736907959,
      "total_seconds": 10.381553173065186,
      "stats": {
        "sandboxes_per_sec": 45.5
      },
      "ol-stats": {
        "Create().cnt": 456,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 456,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 456,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 455,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 456,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 456,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 456,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 456,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 455,
        "childExit().ms-avg": 0,
        "fork().cnt": 455,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 455,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 473,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 455,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:06 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:47:06 remove worker.pid",
        "2021/01/21 21:47:06 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.359530925750732,
      "total_seconds": 10.59693455696106,
      "stats": {
        "sandboxes_per_sec": 47.0
      },
      "ol-stats": {
        "Create().cnt": 471,
        "Create().ms-avg": 72,
        "Create()/acquire-cgroup.cnt": 471,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 471,
        "Create()/acquire-mem.ms-avg": 22,
        "Create()/fork-proc.cnt": 470,
        "Create()/fork-proc.ms-avg": 47,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 471,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 941,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 471,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 471,
        "Destroy()/kill-procs.ms-avg": 19,
        "Destroy()/remove-root.cnt": 471,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 470,
        "childExit().ms-avg": 46,
        "fork().cnt": 470,
        "fork().ms-avg": 47,
        "forkRequest.cnt": 470,
        "forkRequest.ms-avg": 8,
        "fresh-cgroup.cnt": 488,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 470,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:47:16 remove worker.pid",
        "2021/01/21 21:47:16 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 10.8604896068573,
      "total_seconds": 11.211043119430542,
      "stats": {
        "sandboxes_per_sec": 43.9
      },
      "ol-stats": {
        "Create().cnt": 472,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 472,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 472,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 471,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 472,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 472,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 472,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 472,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 471,
        "childExit().ms-avg": 0,
        "fork().cnt": 471,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 471,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 489,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 471,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:47:28 remove worker.pid",
        "2021/01/21 21:47:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "sock",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry"
      },
      "seconds": 11.1151864528656,
      "total_seconds": 11.475648403167725,
      "stats": {
        "sandboxes_per_sec": 41.1
      },
      "ol-stats": {
        "Create().cnt": 444,
        "Create().ms-avg": 104,
        "Create()/acquire-cgroup.cnt": 444,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 444,
        "Create()/acquire-mem.ms-avg": 67,
        "Create()/fork-proc.cnt": 443,
        "Create()/fork-proc.ms-avg": 34,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 155,
        "Create()/make-root-fs.cnt": 444,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 855,
        "Destroy().ms-avg": 45,
        "Destroy()/detach-root.cnt": 444,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 444,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 444,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 443,
        "childExit().ms-avg": 34,
        "fork().cnt": 443,
        "fork().ms-avg": 34,
        "forkRequest.cnt": 443,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 461,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 443,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:47:39 remove worker.pid",
        "2021/01/21 21:47:39 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "registry_cache_ms": 3000,
        "registry": "/tmp/tmpr77td3c5"
      },
      "seconds": 6.029615163803101,
      "total_seconds": 6.2743449211120605,
      "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": 135,
        "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": 1709,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1712,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1709,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1708,
        "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": 1709,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:47:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:47:45 remove worker.pid",
        "2021/01/21 21:47:45 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.043238162994385,
      "total_seconds": 15.272999286651611,
      "stats": {
        "reqs_per_sec": 292.26666666666665
      },
      "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": 132,
        "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": 4384,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4387,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4384,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4383,
        "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": 4384,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:48:01 remove worker.pid",
        "2021/01/21 21:48:01 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.046860456466675,
      "total_seconds": 15.277842283248901,
      "stats": {
        "reqs_per_sec": 292.26666666666665
      },
      "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": 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": 4384,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3976,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4384,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3972,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4384,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:48:16 remove worker.pid",
        "2021/01/21 21:48:16 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry"
      },
      "seconds": 15.06446647644043,
      "total_seconds": 15.29667353630066,
      "stats": {
        "reqs_per_sec": 269.8666666666667
      },
      "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": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4048,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3039,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4048,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3035,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 2,
        "web-request.cnt": 4048,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:48:31 remove worker.pid",
        "2021/01/21 21:48:31 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmp4vg6f5hv"
      },
      "seconds": 2.690786123275757,
      "total_seconds": 3.1687140464782715,
      "stats": {
        "reqs_per_sec": 37.164476242155175
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 156,
        "Destroy().ms-avg": 3,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 2,
        "evict.cnt": 55,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:48:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:48:34 remove worker.pid",
        "2021/01/21 21:48:34 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "worker_port": "5000",
        "server_mode": "lambda",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "mem_pool_mb": 500,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "import_cache_tree": "",
        "docker_runtime": "",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "limits": {
          "swappiness": 0,
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50
        },
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmph6hki0lh"
      },
      "seconds": 41.33980894088745,
      "total_seconds": 41.882835388183594,
      "stats": {
        "reqs_per_sec": 24.189773694827625
      },
      "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": 133,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/01/21 21:49:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/01/21 21:49:16 remove worker.pid",
        "2021/01/21 21:49:16 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
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