{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 2.1666460037231445,
      "total_seconds": 2.441679000854492,
      "stats": {
        "pings_per_sec": 461.5469770479002
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:47 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:45:47 remove worker.pid",
        "2020/06/21 21:45:47 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 9.375766038894653,
      "total_seconds": 9.61214280128479,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 290,
        "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": 281,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 7,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2334,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 99,
        "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": 1157,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2334
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:45:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:45:57 remove worker.pid",
        "2020/06/21 21:45:57 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 6.062405347824097,
      "total_seconds": 6.296971082687378,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1508,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 941,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1508
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:46:03 remove worker.pid",
        "2020/06/21 21:46:03 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": false,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "docker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 19.445534706115723,
      "total_seconds": 20.472657680511475,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 833,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 283,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 4850,
        "Pause().cnt": 4,
        "Pause().ms-avg": 30,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2340,
        "web-request.cnt": 4,
        "web-request.ms-avg": 4850
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:46:23 Kill function: install",
        "2020/06/21 21:46:23 Destroy() [SB 6]",
        "2020/06/21 21:46:23 Kill function: install2",
        "2020/06/21 21:46:23 Destroy() [SB 7]",
        "2020/06/21 21:46:23 Kill function: install3",
        "2020/06/21 21:46:23 Destroy() [SB 9]",
        "2020/06/21 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:46:24 remove worker.pid",
        "2020/06/21 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 0.18830418586730957,
      "total_seconds": 0.41814470291137695,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "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": 132,
        "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": 184,
        "Pause().cnt": 2,
        "Pause().ms-avg": 2,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "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": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 20,
        "web-request.cnt": 1,
        "web-request.ms-avg": 184
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:46:24 remove worker.pid",
        "2020/06/21 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 0.819676399230957,
      "total_seconds": 1.05007004737854,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 74,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 815,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 658,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 816
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:46:25 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:46:25 remove worker.pid",
        "2020/06/21 21:46:25 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 42.569535970687866,
      "total_seconds": 42.81521511077881,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 119,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 150,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 23,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 8510,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 290,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 5785,
        "web-request.cnt": 5,
        "web-request.ms-avg": 8510
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:47:08 remove worker.pid",
        "2020/06/21 21:47:08 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "seconds": 5,
        "fork": false
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 8.91313624382019,
      "total_seconds": 9.1342134475708,
      "stats": {
        "sandboxes_per_sec": 5.2
      },
      "ol-stats": {
        "Create().cnt": 26,
        "Create().ms-avg": 321,
        "Create()/acquire-cgroup.cnt": 26,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 26,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 26,
        "Create()/fresh-proc.ms-avg": 156,
        "Create()/make-root-fs.cnt": 26,
        "Create()/make-root-fs.ms-avg": 164,
        "Destroy().cnt": 52,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 26,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 26,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 26,
        "Destroy()/remove-root.ms-avg": 1,
        "fresh-cgroup.cnt": 43,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:47:17 remove worker.pid",
        "2020/06/21 21:47:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 10.253875970840454,
      "total_seconds": 10.489039659500122,
      "stats": {
        "sandboxes_per_sec": 48.8
      },
      "ol-stats": {
        "Create().cnt": 489,
        "Create().ms-avg": 9,
        "Create()/acquire-cgroup.cnt": 489,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 489,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 488,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 489,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 977,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 489,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 489,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 489,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 488,
        "childExit().ms-avg": 0,
        "fork().cnt": 488,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 488,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 506,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 488,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:47:29 remove worker.pid",
        "2020/06/21 21:47:29 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 0,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 10.32243037223816,
      "total_seconds": 10.549365758895874,
      "stats": {
        "sandboxes_per_sec": 47.6
      },
      "ol-stats": {
        "Create().cnt": 477,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 477,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 477,
        "Create()/acquire-mem.ms-avg": 17,
        "Create()/fork-proc.cnt": 476,
        "Create()/fork-proc.ms-avg": 59,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 132,
        "Create()/make-root-fs.cnt": 477,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 953,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 477,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 477,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 477,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 476,
        "childExit().ms-avg": 59,
        "fork().cnt": 476,
        "fork().ms-avg": 59,
        "forkRequest.cnt": 476,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 494,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 476,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:47:40 remove worker.pid",
        "2020/06/21 21:47:40 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 32,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 10.745605707168579,
      "total_seconds": 11.108664274215698,
      "stats": {
        "sandboxes_per_sec": 47.8
      },
      "ol-stats": {
        "Create().cnt": 511,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 511,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 511,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 510,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 511,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 989,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 511,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 511,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 511,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 510,
        "childExit().ms-avg": 0,
        "fork().cnt": 510,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 510,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 528,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 510,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:47:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:47:51 remove worker.pid",
        "2020/06/21 21:47:51 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 32,
        "seconds": 10,
        "fork": true
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 10.974168539047241,
      "total_seconds": 11.401900291442871,
      "stats": {
        "sandboxes_per_sec": 42.5
      },
      "ol-stats": {
        "Create().cnt": 458,
        "Create().ms-avg": 122,
        "Create()/acquire-cgroup.cnt": 458,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 458,
        "Create()/acquire-mem.ms-avg": 74,
        "Create()/fork-proc.cnt": 457,
        "Create()/fork-proc.ms-avg": 44,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 458,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 883,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 458,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 458,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 458,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 457,
        "childExit().ms-avg": 48,
        "fork().cnt": 457,
        "fork().ms-avg": 44,
        "forkRequest.cnt": 457,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 475,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 457,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:03 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:03 remove worker.pid",
        "2020/06/21 21:48:03 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 3000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/tmp/tmp8rzimbex",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 6.0314600467681885,
      "total_seconds": 6.275999069213867,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 49,
        "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": 166,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1716,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1719,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1716,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1715,
        "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": 1716,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:09 remove worker.pid",
        "2020/06/21 21:48:09 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 15.042440414428711,
      "total_seconds": 15.272494316101074,
      "stats": {
        "reqs_per_sec": 288.3333333333333
      },
      "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": 138,
        "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": 4325,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4328,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4325,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4324,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4325,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:24 remove worker.pid",
        "2020/06/21 21:48:24 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 15.048094987869263,
      "total_seconds": 15.277760744094849,
      "stats": {
        "reqs_per_sec": 295.73333333333335
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4436,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4080,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4436,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4076,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4436,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:40 remove worker.pid",
        "2020/06/21 21:48:40 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": false,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/root/open-lambda/test-registry",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 15.061370372772217,
      "total_seconds": 15.290560007095337,
      "stats": {
        "reqs_per_sec": 279.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 43,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4193,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3102,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4193,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3098,
        "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": 2,
        "web-request.cnt": 4193,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:55 remove worker.pid",
        "2020/06/21 21:48:55 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/tmp/tmpr8ha_f5l",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 2.6340906620025635,
      "total_seconds": 3.0668179988861084,
      "stats": {
        "reqs_per_sec": 37.964194954911505
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 6,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 130,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 155,
        "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": 22,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 54,
        "evict.ms-avg": 10,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 68,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 22
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:48:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:48:58 remove worker.pid",
        "2020/06/21 21:48:58 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "mem_mb": 50,
          "installer_mem_mb": 250
        },
        "features": {
          "import_cache": true,
          "reuse_cgroups": true,
          "downsize_paused_mem": true
        },
        "docker_runtime": "",
        "trace": {
          "package": false,
          "cgroups": false,
          "evictor": false,
          "memory": false
        },
        "registry": "/tmp/tmp5ipf2okt",
        "mem_pool_mb": 500,
        "pip_mirror": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "storage": {
          "code": "",
          "root": "private",
          "scratch": ""
        },
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_port": "5000",
        "import_cache_tree": ""
      },
      "seconds": 42.44002032279968,
      "total_seconds": 43.03878164291382,
      "stats": {
        "reqs_per_sec": 23.56267920333558
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 129,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/21 21:49:41 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/21 21:49:41 remove worker.pid",
        "2020/06/21 21:49:41 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 301.6084213256836
}