{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 2.2908990383148193,
      "total_seconds": 2.475248098373413,
      "stats": {
        "pings_per_sec": 436.51375881355125
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:42:34 remove worker.pid",
        "2019/12/22 21:42:34 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 10.255282878875732,
      "total_seconds": 10.495961427688599,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 312,
        "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": 311,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2553,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 68,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 4,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1278,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2553
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:42:44 remove worker.pid",
        "2019/12/22 21:42:44 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 6.065163850784302,
      "total_seconds": 6.302041292190552,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 1508,
        "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": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 941,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1508
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:42:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:42:51 remove worker.pid",
        "2019/12/22 21:42:51 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "docker",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 19.878021001815796,
      "total_seconds": 20.9015531539917,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 873,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 287,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4956,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2367,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4956
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:11 Kill function: install3",
        "2019/12/22 21:43:11 Destroy() [SB 9]",
        "2019/12/22 21:43:11 Kill function: echo",
        "2019/12/22 21:43:11 Destroy() [SB 0]",
        "2019/12/22 21:43:11 Kill function: install",
        "2019/12/22 21:43:11 Destroy() [SB 6]",
        "2019/12/22 21:43:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:11 remove worker.pid",
        "2019/12/22 21:43:11 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 0.17883801460266113,
      "total_seconds": 0.410602331161499,
      "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": 7,
        "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": 175,
        "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": 175
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:12 remove worker.pid",
        "2019/12/22 21:43:12 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 0.8678877353668213,
      "total_seconds": 1.0978410243988037,
      "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": 5,
        "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": 864,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 694,
        "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": 10,
        "web-request.cnt": 1,
        "web-request.ms-avg": 864
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:13 remove worker.pid",
        "2019/12/22 21:43:13 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 27.731143474578857,
      "total_seconds": 28.00480008125305,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 106,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 13,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5540,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 272,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3707,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5541
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:41 remove worker.pid",
        "2019/12/22 21:43:41 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 5,
        "procs": 1,
        "fork": false,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 5.122501611709595,
      "total_seconds": 5.344717741012573,
      "stats": {
        "sandboxes_per_sec": 5.8
      },
      "ol-stats": {
        "Create().cnt": 29,
        "Create().ms-avg": 157,
        "Create()/acquire-cgroup.cnt": 29,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 29,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 29,
        "Create()/fresh-proc.ms-avg": 152,
        "Create()/make-root-fs.cnt": 29,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 58,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 29,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 29,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 29,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 46,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:46 remove worker.pid",
        "2019/12/22 21:43:46 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 10.181440353393555,
      "total_seconds": 10.421030759811401,
      "stats": {
        "sandboxes_per_sec": 45.0
      },
      "ol-stats": {
        "Create().cnt": 451,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 451,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 451,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 450,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 451,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 901,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 451,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 451,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 451,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 450,
        "childExit().ms-avg": 0,
        "fork().cnt": 450,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 450,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 468,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 450,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:43:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:43:57 remove worker.pid",
        "2019/12/22 21:43:57 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "fork": true,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 10.378121376037598,
      "total_seconds": 10.6139976978302,
      "stats": {
        "sandboxes_per_sec": 45.3
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 81,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 14,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 63,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 60,
        "fork().cnt": 453,
        "fork().ms-avg": 63,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:44:07 remove worker.pid",
        "2019/12/22 21:44:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 1,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 10.768167972564697,
      "total_seconds": 11.127294540405273,
      "stats": {
        "sandboxes_per_sec": 39.5
      },
      "ol-stats": {
        "Create().cnt": 428,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 428,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 428,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 427,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 428,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 823,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 428,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 428,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 428,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 427,
        "childExit().ms-avg": 0,
        "fork().cnt": 427,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 427,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 445,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 427,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:18 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:44:18 remove worker.pid",
        "2019/12/22 21:44:18 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "seconds": 10,
        "procs": 15,
        "fork": true,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-dir/registry",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 11.046959638595581,
      "total_seconds": 11.389177322387695,
      "stats": {
        "sandboxes_per_sec": 41.2
      },
      "ol-stats": {
        "Create().cnt": 445,
        "Create().ms-avg": 121,
        "Create()/acquire-cgroup.cnt": 445,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 445,
        "Create()/acquire-mem.ms-avg": 68,
        "Create()/fork-proc.cnt": 444,
        "Create()/fork-proc.ms-avg": 49,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 182,
        "Create()/make-root-fs.cnt": 445,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 857,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 445,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 445,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 445,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 444,
        "childExit().ms-avg": 53,
        "fork().cnt": 444,
        "fork().ms-avg": 49,
        "forkRequest.cnt": 444,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 462,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 444,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:44:30 remove worker.pid",
        "2019/12/22 21:44:30 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp58tmyguc",
        "server_mode": "lambda",
        "registry_cache_ms": 3000,
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 6.029873371124268,
      "total_seconds": 6.27349328994751,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 51,
        "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": 172,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1667,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1670,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1667,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1666,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 1667,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:44:36 remove worker.pid",
        "2019/12/22 21:44:36 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 15.04228401184082,
      "total_seconds": 15.271929264068604,
      "stats": {
        "reqs_per_sec": 282.3333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4235,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4238,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4235,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4234,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4235,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:44:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:44:51 remove worker.pid",
        "2019/12/22 21:44:51 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 15.044442415237427,
      "total_seconds": 15.277158260345459,
      "stats": {
        "reqs_per_sec": 285.1333333333333
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4277,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3806,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4277,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3802,
        "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": 4277,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:45:07 remove worker.pid",
        "2019/12/22 21:45:07 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 15.065146684646606,
      "total_seconds": 15.297552108764648,
      "stats": {
        "reqs_per_sec": 264.93333333333334
      },
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 3974,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2966,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3974,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2962,
        "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": 4,
        "web-request.cnt": 3974,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:45:22 remove worker.pid",
        "2019/12/22 21:45:22 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "limits": {
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp79ra2yan",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "evictor": false,
          "cgroups": false,
          "package": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 2.838132619857788,
      "total_seconds": 3.269644021987915,
      "stats": {
        "reqs_per_sec": 35.23474899161072
      },
      "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": 138,
        "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": 24,
        "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": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:45:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:45:25 remove worker.pid",
        "2019/12/22 21:45:25 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "worker_port": "5000",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "limits": {
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10
        },
        "sandbox": "sock",
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpii_8u3hw",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "trace": {
          "memory": false,
          "package": false,
          "cgroups": false,
          "evictor": false
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "docker_runtime": "",
        "pip_mirror": ""
      },
      "seconds": 43.44487452507019,
      "total_seconds": 44.031479597091675,
      "stats": {
        "reqs_per_sec": 23.017688717181304
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 11,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2019/12/22 21:46:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2019/12/22 21:46:09 remove worker.pid",
        "2019/12/22 21:46:09 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 280.4506642818451
}