{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 2.336252450942993,
      "total_seconds": 2.8576807975769043,
      "stats": {
        "pings_per_sec": 428.0401712199873
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:02 remove worker.pid",
        "2020/04/24 21:44:02 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 9.619647026062012,
      "total_seconds": 9.86208438873291,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 265,
        "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": 263,
        "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": 2396,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 79,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1247,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2396
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:12 remove worker.pid",
        "2020/04/24 21:44:12 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 6.836472034454346,
      "total_seconds": 7.078136920928955,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 98,
        "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": 8,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 146,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1700,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 7,
        "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": 1064,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1700
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:19 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:19 remove worker.pid",
        "2020/04/24 21:44:19 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "docker",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 23.677983045578003,
      "total_seconds": 25.216026782989502,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1078,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 435,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5906,
        "Pause().cnt": 4,
        "Pause().ms-avg": 32,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2768,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5906
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:43 Kill function: install3",
        "2020/04/24 21:44:43 Destroy() [SB 9]",
        "2020/04/24 21:44:43 Kill function: echo",
        "2020/04/24 21:44:43 Destroy() [SB 0]",
        "2020/04/24 21:44:44 Kill function: install",
        "2020/04/24 21:44:44 Destroy() [SB 6]",
        "2020/04/24 21:44:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:44 remove worker.pid",
        "2020/04/24 21:44:44 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 0.2261521816253662,
      "total_seconds": 0.46199822425842285,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 97,
        "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 177,
        "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": 221,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 15,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 221
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:45 remove worker.pid",
        "2020/04/24 21:44:45 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 0.9467883110046387,
      "total_seconds": 1.1807887554168701,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 81,
        "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": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "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": 942,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 770,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 942
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:44:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:44:46 remove worker.pid",
        "2020/04/24 21:44:46 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 29.31431531906128,
      "total_seconds": 29.557490587234497,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 195,
        "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": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 151,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 99,
        "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": 3,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 5858,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 285,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 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": 2,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 3756,
        "web-request.cnt": 5,
        "web-request.ms-avg": 5858
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:15 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:45:15 remove worker.pid",
        "2020/04/24 21:45:15 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "baseline": 0,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "sock",
        "worker_port": "5000"
      },
      "seconds": 5.092762470245361,
      "total_seconds": 5.2197794914245605,
      "stats": {
        "sandboxes_per_sec": 5.6
      },
      "ol-stats": {
        "Create().cnt": 28,
        "Create().ms-avg": 151,
        "Create()/acquire-cgroup.cnt": 28,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 28,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 28,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 28,
        "Create()/make-root-fs.ms-avg": 5,
        "Destroy().cnt": 56,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 28,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 28,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 28,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 45,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:45:21 remove worker.pid",
        "2020/04/24 21:45:21 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "sock",
        "worker_port": "5000"
      },
      "seconds": 10.181113719940186,
      "total_seconds": 10.41882872581482,
      "stats": {
        "sandboxes_per_sec": 37.3
      },
      "ol-stats": {
        "Create().cnt": 374,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 374,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 374,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 373,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 374,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 747,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 374,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 374,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 374,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 373,
        "childExit().ms-avg": 0,
        "fork().cnt": 373,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 373,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 391,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 373,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:45:31 remove worker.pid",
        "2020/04/24 21:45:31 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 0,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "sock",
        "worker_port": "5000"
      },
      "seconds": 10.419519186019897,
      "total_seconds": 10.651304483413696,
      "stats": {
        "sandboxes_per_sec": 39.2
      },
      "ol-stats": {
        "Create().cnt": 393,
        "Create().ms-avg": 113,
        "Create()/acquire-cgroup.cnt": 393,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 393,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 392,
        "Create()/fork-proc.ms-avg": 90,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "Create()/make-root-fs.cnt": 393,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 785,
        "Destroy().ms-avg": 65,
        "Destroy()/detach-root.cnt": 393,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 393,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 393,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 392,
        "childExit().ms-avg": 90,
        "fork().cnt": 392,
        "fork().ms-avg": 90,
        "forkRequest.cnt": 392,
        "forkRequest.ms-avg": 13,
        "fresh-cgroup.cnt": 410,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 392,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:45:42 remove worker.pid",
        "2020/04/24 21:45:42 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "sock",
        "worker_port": "5000"
      },
      "seconds": 10.954479694366455,
      "total_seconds": 11.308072805404663,
      "stats": {
        "sandboxes_per_sec": 38.3
      },
      "ol-stats": {
        "Create().cnt": 416,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 416,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 416,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 415,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 416,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 799,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 416,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 416,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 416,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 415,
        "childExit().ms-avg": 0,
        "fork().cnt": 415,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 415,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 433,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 415,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:45:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:45:53 remove worker.pid",
        "2020/04/24 21:45:53 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "baseline": 32,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "features": {
          "downsize_paused_mem": true,
          "import_cache": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "sock",
        "worker_port": "5000"
      },
      "seconds": 11.248489141464233,
      "total_seconds": 11.599953651428223,
      "stats": {
        "sandboxes_per_sec": 36.3
      },
      "ol-stats": {
        "Create().cnt": 396,
        "Create().ms-avg": 159,
        "Create()/acquire-cgroup.cnt": 396,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 396,
        "Create()/acquire-mem.ms-avg": 91,
        "Create()/fork-proc.cnt": 395,
        "Create()/fork-proc.ms-avg": 63,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 193,
        "Create()/make-root-fs.cnt": 396,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 759,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 396,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 396,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 396,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 395,
        "childExit().ms-avg": 70,
        "fork().cnt": 395,
        "fork().ms-avg": 63,
        "forkRequest.cnt": 395,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 413,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 395,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:46:05 remove worker.pid",
        "2020/04/24 21:46:05 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 3000,
        "sandbox": "sock",
        "registry": "/tmp/tmpnv6919uc",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 6.033229351043701,
      "total_seconds": 6.283049821853638,
      "stats": null,
      "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": 142,
        "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": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1561,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1564,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1561,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1560,
        "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": 1561,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:46:11 remove worker.pid",
        "2020/04/24 21:46:11 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 15.047673463821411,
      "total_seconds": 15.285218954086304,
      "stats": {
        "reqs_per_sec": 262.3333333333333
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 145,
        "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": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 4,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3935,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3938,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3935,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3934,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 3935,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:46:26 remove worker.pid",
        "2020/04/24 21:46:26 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 15.051924228668213,
      "total_seconds": 15.287614345550537,
      "stats": {
        "reqs_per_sec": 262.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "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": 145,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3933,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3610,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3933,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3606,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "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": 2,
        "web-request.cnt": 3933,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:46:41 remove worker.pid",
        "2020/04/24 21:46:41 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": false
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 15.07878565788269,
      "total_seconds": 15.313008546829224,
      "stats": {
        "reqs_per_sec": 235.0
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 47,
        "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": 146,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3525,
        "LambdaFunc.Invoke.ms-avg": 3,
        "Pause().cnt": 2435,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3525,
        "ServeHTTP.ms-avg": 1,
        "Unpause().cnt": 2431,
        "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": 11,
        "web-request.cnt": 3525,
        "web-request.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:46:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:46:57 remove worker.pid",
        "2020/04/24 21:46:57 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/tmp/tmp0eaohb2e",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "procs": 10,
          "mem_mb": 50,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "docker_runtime": "",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 3.466284990310669,
      "total_seconds": 4.017901659011841,
      "stats": {
        "reqs_per_sec": 28.849560309954157
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 9,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 145,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 151,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 4,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 30,
        "Pause().cnt": 200,
        "Pause().ms-avg": 8,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 8,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 50,
        "evict.ms-avg": 12,
        "fork().cnt": 100,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 100,
        "web-request.ms-avg": 30
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:47:01 remove worker.pid",
        "2020/04/24 21:47:01 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "features": {
          "import_cache": true,
          "downsize_paused_mem": true,
          "reuse_cgroups": true
        },
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "sandbox": "sock",
        "registry": "/tmp/tmp1z1g3r85",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "limits": {
          "installer_mem_mb": 250,
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0
        },
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "memory": false,
          "package": false,
          "cgroups": false
        },
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "server_mode": "lambda",
        "worker_port": "5000"
      },
      "seconds": 49.513235092163086,
      "total_seconds": 50.086459159851074,
      "stats": {
        "reqs_per_sec": 20.19663305310602
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 9,
        "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": 145,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 7,
        "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": 44,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 21,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 5,
        "evict.cnt": 980,
        "evict.ms-avg": 15,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 45
      },
      "errors": [],
      "worker_tail": [
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/24 21:47:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/24 21:47:51 remove worker.pid",
        "2020/04/24 21:47:51 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 309.57658863067627
}