{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 3.034238815307617,
      "total_seconds": 3.3500609397888184,
      "stats": {
        "pings_per_sec": 329.5742278747099
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:48:21 remove worker.pid",
        "2021/03/17 21:48:21 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "sandbox": "sock",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 17.805529356002808,
      "total_seconds": 18.041748523712158,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 646,
        "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": 644,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4441,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 81,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 113,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1891,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4441
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:48:39 remove worker.pid",
        "2021/03/17 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 6.553027868270874,
      "total_seconds": 6.790343999862671,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 92,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 1630,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 43,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1023,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1630
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:48:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:48:46 remove worker.pid",
        "2021/03/17 21:48:46 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "worker_port": "5000",
        "import_cache_tree": "",
        "sandbox": "docker",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/root/open-lambda/test-registry",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": false,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 28.44102954864502,
      "total_seconds": 30.470808267593384,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1718,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 417,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7099,
        "Pause().cnt": 4,
        "Pause().ms-avg": 111,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3116,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7099
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:49:16 Kill function: install3",
        "2021/03/17 21:49:16 Destroy() [SB 9]",
        "2021/03/17 21:49:16 Kill function: echo",
        "2021/03/17 21:49:16 Destroy() [SB 0]",
        "2021/03/17 21:49:16 Kill function: install",
        "2021/03/17 21:49:16 Destroy() [SB 6]",
        "2021/03/17 21:49:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:49:17 remove worker.pid",
        "2021/03/17 21:49:17 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 0.6094048023223877,
      "total_seconds": 0.8398072719573975,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 605,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 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": 433,
        "web-request.cnt": 1,
        "web-request.ms-avg": 605
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:49:17 remove worker.pid",
        "2021/03/17 21:49:17 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 0.8361566066741943,
      "total_seconds": 1.0649690628051758,
      "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": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 832,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 669,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 832
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:49:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:49:19 remove worker.pid",
        "2021/03/17 21:49:19 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 82.2256851196289,
      "total_seconds": 82.46229267120361,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 117,
        "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": 175,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 16441,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 592,
        "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": 87,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 9824,
        "web-request.cnt": 5,
        "web-request.ms-avg": 16441
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:50:41 remove worker.pid",
        "2021/03/17 21:50:41 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 5,
        "baseline": 0,
        "fork": false
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 5.118864297866821,
      "total_seconds": 5.241802930831909,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 143,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:50:46 remove worker.pid",
        "2021/03/17 21:50:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.265575885772705,
      "total_seconds": 10.50112533569336,
      "stats": {
        "sandboxes_per_sec": 42.9
      },
      "ol-stats": {
        "Create().cnt": 430,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 430,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 430,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 429,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 430,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 859,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 430,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 430,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 430,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 429,
        "childExit().ms-avg": 0,
        "fork().cnt": 429,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 429,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 447,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 429,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:50:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:50:57 remove worker.pid",
        "2021/03/17 21:50:57 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 0,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.339768409729004,
      "total_seconds": 10.576640129089355,
      "stats": {
        "sandboxes_per_sec": 43.8
      },
      "ol-stats": {
        "Create().cnt": 439,
        "Create().ms-avg": 105,
        "Create()/acquire-cgroup.cnt": 439,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 439,
        "Create()/acquire-mem.ms-avg": 22,
        "Create()/fork-proc.cnt": 438,
        "Create()/fork-proc.ms-avg": 66,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 439,
        "Create()/make-root-fs.ms-avg": 13,
        "Destroy().cnt": 877,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 439,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 439,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 439,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 438,
        "childExit().ms-avg": 62,
        "fork().cnt": 438,
        "fork().ms-avg": 66,
        "forkRequest.cnt": 438,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 456,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 438,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:51:07 remove worker.pid",
        "2021/03/17 21:51:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 10.832377433776855,
      "total_seconds": 11.176009893417358,
      "stats": {
        "sandboxes_per_sec": 42.0
      },
      "ol-stats": {
        "Create().cnt": 453,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 453,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 453,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 452,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 453,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 873,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 453,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 453,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 453,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 452,
        "childExit().ms-avg": 0,
        "fork().cnt": 452,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 452,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 470,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 452,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:51:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:51:19 remove worker.pid",
        "2021/03/17 21:51:19 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "seconds": 10,
        "baseline": 32,
        "fork": true
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "sandbox": "sock",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-dir/registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 11.048293352127075,
      "total_seconds": 11.404804706573486,
      "stats": {
        "sandboxes_per_sec": 40.1
      },
      "ol-stats": {
        "Create().cnt": 434,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 434,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 434,
        "Create()/acquire-mem.ms-avg": 76,
        "Create()/fork-proc.cnt": 433,
        "Create()/fork-proc.ms-avg": 47,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 176,
        "Create()/make-root-fs.cnt": 434,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 835,
        "Destroy().ms-avg": 45,
        "Destroy()/detach-root.cnt": 434,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 434,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 434,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 433,
        "childExit().ms-avg": 45,
        "fork().cnt": 433,
        "fork().ms-avg": 47,
        "forkRequest.cnt": 433,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 451,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 433,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:51:30 remove worker.pid",
        "2021/03/17 21:51:30 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "sandbox": "sock",
        "import_cache_tree": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmphbuatdd3",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry_cache_ms": 3000,
        "mem_pool_mb": 500
      },
      "seconds": 6.101808309555054,
      "total_seconds": 6.336368799209595,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 60,
        "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": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 21,
        "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": 1602,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1605,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1602,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1601,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 4,
        "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": 1602,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:51:37 remove worker.pid",
        "2021/03/17 21:51:37 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.042218685150146,
      "total_seconds": 15.27463412284851,
      "stats": {
        "reqs_per_sec": 288.8
      },
      "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": 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": 4332,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4335,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4332,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4331,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4332,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:51:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:51:52 remove worker.pid",
        "2021/03/17 21:51:52 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.044748544692993,
      "total_seconds": 15.27623987197876,
      "stats": {
        "reqs_per_sec": 286.8666666666667
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4303,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3853,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4303,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3849,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4303,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:52:07 remove worker.pid",
        "2021/03/17 21:52:07 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/root/open-lambda/test-registry",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 15.064643859863281,
      "total_seconds": 15.29534101486206,
      "stats": {
        "reqs_per_sec": 260.93333333333334
      },
      "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": 8,
        "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": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "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": 3914,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2935,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3914,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2931,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 3914,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:52:22 remove worker.pid",
        "2021/03/17 21:52:22 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "server_mode": "lambda",
        "trace": {
          "cgroups": false,
          "memory": false,
          "evictor": false,
          "package": false
        },
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "import_cache_tree": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox": "sock",
        "sandbox_config": {},
        "registry": "/tmp/tmpht15nto_",
        "docker_runtime": "",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 2.76642107963562,
      "total_seconds": 3.3722269535064697,
      "stats": {
        "reqs_per_sec": 36.14888988117323
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 156,
        "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": 23,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 55,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 66,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 23
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:52:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:52:26 remove worker.pid",
        "2021/03/17 21:52:26 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "limits": {
          "procs": 10,
          "installer_mem_mb": 250,
          "swappiness": 0,
          "mem_mb": 50
        },
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "evictor": false,
          "package": false,
          "cgroups": false
        },
        "sandbox": "sock",
        "import_cache_tree": "",
        "worker_port": "5000",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "registry": "/tmp/tmptiz5wi9d",
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": true
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "pip_mirror": "",
        "storage": {
          "code": "",
          "scratch": "",
          "root": "private"
        },
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500
      },
      "seconds": 49.128475189208984,
      "total_seconds": 49.66215181350708,
      "stats": {
        "reqs_per_sec": 20.354805917574126
      },
      "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": 155,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "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": 44,
        "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": 2,
        "evict.cnt": 980,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 8,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 45
      },
      "errors": [],
      "worker_tail": [
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/17 21:53:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/17 21:53:16 remove worker.pid",
        "2021/03/17 21:53:16 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 440.7347664833069
}