{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 2.2868824005126953,
      "total_seconds": 2.4959821701049805,
      "stats": {
        "pings_per_sec": 437.2807238858907
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:44:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:44:52 remove worker.pid",
        "2020/03/21 21:44:52 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 11.261660099029541,
      "total_seconds": 11.505544900894165,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 327,
        "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": 325,
        "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": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2773,
        "Pause().cnt": 4,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 92,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 11,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1383,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2773
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:45:03 remove worker.pid",
        "2020/03/21 21:45:03 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 7.546189785003662,
      "total_seconds": 7.787251234054565,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 97,
        "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": 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": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1878,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "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": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1182,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1878
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:45:11 remove worker.pid",
        "2020/03/21 21:45:11 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "sandbox": "docker",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry": "/root/open-lambda/test-registry",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 30.3318088054657,
      "total_seconds": 31.464205265045166,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1424,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 300,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7570,
        "Pause().cnt": 4,
        "Pause().ms-avg": 156,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3354,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7570
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:45:42 Kill function: install",
        "2020/03/21 21:45:42 Destroy() [SB 6]",
        "2020/03/21 21:45:42 Kill function: install2",
        "2020/03/21 21:45:42 Destroy() [SB 7]",
        "2020/03/21 21:45:42 Kill function: install3",
        "2020/03/21 21:45:42 Destroy() [SB 9]",
        "2020/03/21 21:45:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:45:42 remove worker.pid",
        "2020/03/21 21:45:42 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 0.4127931594848633,
      "total_seconds": 0.6485633850097656,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 192,
        "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": 366,
        "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": 408,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 14,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 7,
        "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": 408
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:45:43 remove worker.pid",
        "2020/03/21 21:45:43 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 0.9047613143920898,
      "total_seconds": 1.1404662132263184,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 80,
        "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": 143,
        "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": 900,
        "Pause().cnt": 2,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 729,
        "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": 900
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:45:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:45:44 remove worker.pid",
        "2020/03/21 21:45:44 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 51.553256034851074,
      "total_seconds": 51.80468392372131,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 97,
        "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": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 10306,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 360,
        "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": 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": 7060,
        "web-request.cnt": 5,
        "web-request.ms-avg": 10306
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:36 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:46:36 remove worker.pid",
        "2020/03/21 21:46:36 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "seconds": 5,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "sock",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 5.023522138595581,
      "total_seconds": 5.248279571533203,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 149,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 144,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:46:41 remove worker.pid",
        "2020/03/21 21:46:41 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "sock",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 10.186659336090088,
      "total_seconds": 10.416507244110107,
      "stats": {
        "sandboxes_per_sec": 37.1
      },
      "ol-stats": {
        "Create().cnt": 372,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 372,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 372,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 371,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 372,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 743,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 372,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 372,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 372,
        "Destroy()/remove-root.ms-avg": 1,
        "childExit().cnt": 371,
        "childExit().ms-avg": 0,
        "fork().cnt": 371,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 371,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 389,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 371,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:46:52 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:46:52 remove worker.pid",
        "2020/03/21 21:46:52 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 0
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "sock",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 10.332530736923218,
      "total_seconds": 10.571068286895752,
      "stats": {
        "sandboxes_per_sec": 37.1
      },
      "ol-stats": {
        "Create().cnt": 372,
        "Create().ms-avg": 108,
        "Create()/acquire-cgroup.cnt": 372,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 372,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 371,
        "Create()/fork-proc.ms-avg": 85,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 372,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 743,
        "Destroy().ms-avg": 71,
        "Destroy()/detach-root.cnt": 372,
        "Destroy()/detach-root.ms-avg": 2,
        "Destroy()/kill-procs.cnt": 372,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 372,
        "Destroy()/remove-root.ms-avg": 1,
        "childExit().cnt": 371,
        "childExit().ms-avg": 91,
        "fork().cnt": 371,
        "fork().ms-avg": 85,
        "forkRequest.cnt": 371,
        "forkRequest.ms-avg": 14,
        "fresh-cgroup.cnt": 389,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 371,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:47:02 remove worker.pid",
        "2020/03/21 21:47:02 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "sock",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 10.933576107025146,
      "total_seconds": 11.27552056312561,
      "stats": {
        "sandboxes_per_sec": 36.6
      },
      "ol-stats": {
        "Create().cnt": 399,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 399,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 399,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 398,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "Create()/make-root-fs.cnt": 399,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 765,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 399,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 399,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 399,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 398,
        "childExit().ms-avg": 0,
        "fork().cnt": 398,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 398,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 416,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 398,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:47:13 remove worker.pid",
        "2020/03/21 21:47:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "seconds": 10,
        "baseline": 32
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "sock",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 11.22872257232666,
      "total_seconds": 11.585451602935791,
      "stats": {
        "sandboxes_per_sec": 37.5
      },
      "ol-stats": {
        "Create().cnt": 408,
        "Create().ms-avg": 148,
        "Create()/acquire-cgroup.cnt": 408,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 408,
        "Create()/acquire-mem.ms-avg": 88,
        "Create()/fork-proc.cnt": 407,
        "Create()/fork-proc.ms-avg": 56,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 183,
        "Create()/make-root-fs.cnt": 408,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 783,
        "Destroy().ms-avg": 60,
        "Destroy()/detach-root.cnt": 408,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 408,
        "Destroy()/kill-procs.ms-avg": 16,
        "Destroy()/remove-root.cnt": 408,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 407,
        "childExit().ms-avg": 65,
        "fork().cnt": 407,
        "fork().ms-avg": 56,
        "forkRequest.cnt": 407,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 425,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 407,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:47:25 remove worker.pid",
        "2020/03/21 21:47:25 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry": "/tmp/tmpe0tkl6mn",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 6.0411317348480225,
      "total_seconds": 6.2865400314331055,
      "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "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": 1543,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1546,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1543,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1542,
        "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": 1543,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:47:31 remove worker.pid",
        "2020/03/21 21:47:31 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 15.052102327346802,
      "total_seconds": 15.289955377578735,
      "stats": {
        "reqs_per_sec": 262.46666666666664
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "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": 141,
        "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": 3937,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3940,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3937,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3936,
        "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": 3937,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:47:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:47:47 remove worker.pid",
        "2020/03/21 21:47:47 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 15.055350303649902,
      "total_seconds": 15.292270421981812,
      "stats": {
        "reqs_per_sec": 258.8666666666667
      },
      "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": 142,
        "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": 3883,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3568,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3883,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3564,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "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": 2,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 3883,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:02 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:48:02 remove worker.pid",
        "2020/03/21 21:48:02 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 15.079501390457153,
      "total_seconds": 15.315263271331787,
      "stats": {
        "reqs_per_sec": 240.6
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "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": 140,
        "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": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3609,
        "LambdaFunc.Invoke.ms-avg": 3,
        "Pause().cnt": 2513,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3609,
        "ServeHTTP.ms-avg": 1,
        "Unpause().cnt": 2509,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 2,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 8,
        "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": 6,
        "web-request.cnt": 3609,
        "web-request.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:48:17 remove worker.pid",
        "2020/03/21 21:48:17 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 1,
        "lambda_count": 100
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "server_mode": "lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "registry": "/tmp/tmpe_7snrzk",
        "limits": {
          "mem_mb": 50,
          "installer_mem_mb": 250,
          "procs": 10,
          "swappiness": 0
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "import_cache_tree": "",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "mem_pool_mb": 500,
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "trace": {
          "evictor": false,
          "cgroups": false,
          "memory": false,
          "package": false
        }
      },
      "seconds": 3.4229586124420166,
      "total_seconds": 3.8889963626861572,
      "stats": {
        "reqs_per_sec": 29.21473299328103
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 8,
        "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": 146,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 152,
        "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": 29,
        "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": 51,
        "evict.ms-avg": 11,
        "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": 29
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:48:21 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:48:21 remove worker.pid",
        "2020/03/21 21:48:21 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "alloc_mb": 10,
        "lambda_count": 1000
      },
      "pass": true,
      "conf": {
        "storage": {
          "scratch": "",
          "code": "",
          "root": "private"
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "pip_mirror": "",
        "worker_port": "5000",
        "mem_pool_mb": 500,
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "server_mode": "lambda",
        "import_cache_tree": "",
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "registry": "/tmp/tmpsuwqbf1t",
        "trace": {
          "package": false,
          "cgroups": false,
          "memory": false,
          "evictor": false
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {}
      },
      "seconds": 48.95518660545349,
      "total_seconds": 49.5410943031311,
      "stats": {
        "reqs_per_sec": 20.42685675935432
      },
      "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": 172,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 14,
        "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": 44
      },
      "errors": [],
      "worker_tail": [
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/03/21 21:49:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/03/21 21:49:11 remove worker.pid",
        "2020/03/21 21:49:11 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 358.1245527267456
}