{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 2.7270188331604004,
      "total_seconds": 3.03524112701416,
      "stats": {
        "pings_per_sec": 366.70381816445956
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:46:46 remove worker.pid",
        "2020/06/16 21:46:46 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.375564336776733,
      "total_seconds": 10.616777896881104,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 296,
        "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": 294,
        "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": 2578,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 104,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 10,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1291,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2578
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:46:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:46:57 remove worker.pid",
        "2020/06/16 21:46:57 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 6.766642332077026,
      "total_seconds": 7.006752967834473,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 94,
        "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": 141,
        "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": 1683,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 44,
        "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": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1055,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1683
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:47:04 remove worker.pid",
        "2020/06/16 21:47:04 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 24.06435775756836,
      "total_seconds": 25.095081329345703,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1091,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 324,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6003,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2824,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6003
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:47:29 Kill function: install3",
        "2020/06/16 21:47:29 Destroy() [SB 9]",
        "2020/06/16 21:47:29 Kill function: echo",
        "2020/06/16 21:47:29 Destroy() [SB 0]",
        "2020/06/16 21:47:29 Kill function: install",
        "2020/06/16 21:47:29 Destroy() [SB 6]",
        "2020/06/16 21:47:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:47:29 remove worker.pid",
        "2020/06/16 21:47:29 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 0.18532085418701172,
      "total_seconds": 0.4211118221282959,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 181,
        "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": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 181
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:47:30 remove worker.pid",
        "2020/06/16 21:47:30 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 0.8587136268615723,
      "total_seconds": 1.092297077178955,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 77,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 854,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 688,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "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": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 854
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:47:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:47:31 remove worker.pid",
        "2020/06/16 21:47:31 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 56.31455850601196,
      "total_seconds": 56.55892372131348,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 100,
        "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": 155,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 11258,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 375,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 3,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 7722,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11258
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:48:27 remove worker.pid",
        "2020/06/16 21:48:27 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": false,
        "procs": 1,
        "baseline": 0,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 5.045335054397583,
      "total_seconds": 5.2711403369903564,
      "stats": {
        "sandboxes_per_sec": 6.2
      },
      "ol-stats": {
        "Create().cnt": 31,
        "Create().ms-avg": 143,
        "Create()/acquire-cgroup.cnt": 31,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 31,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 31,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 31,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 62,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 31,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 31,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 31,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 48,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:32 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:48:32 remove worker.pid",
        "2020/06/16 21:48:32 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.188355207443237,
      "total_seconds": 10.424930572509766,
      "stats": {
        "sandboxes_per_sec": 45.3
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 454,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 454,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 453,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 907,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 0,
        "fork().cnt": 453,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 453,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 471,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 453,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:48:43 remove worker.pid",
        "2020/06/16 21:48:43 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 0,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.396967649459839,
      "total_seconds": 10.644908666610718,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 422,
        "Create().ms-avg": 85,
        "Create()/acquire-cgroup.cnt": 422,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 422,
        "Create()/acquire-mem.ms-avg": 21,
        "Create()/fork-proc.cnt": 421,
        "Create()/fork-proc.ms-avg": 60,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 422,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 843,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 422,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 422,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 422,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 421,
        "childExit().ms-avg": 58,
        "fork().cnt": 421,
        "fork().ms-avg": 60,
        "forkRequest.cnt": 421,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 439,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 421,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:48:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:48:54 remove worker.pid",
        "2020/06/16 21:48:54 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 1,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 10.808175086975098,
      "total_seconds": 11.153115034103394,
      "stats": {
        "sandboxes_per_sec": 43.9
      },
      "ol-stats": {
        "Create().cnt": 472,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 472,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 472,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 471,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 472,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 472,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 472,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 472,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 471,
        "childExit().ms-avg": 0,
        "fork().cnt": 471,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 471,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 489,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 471,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:05 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:49:05 remove worker.pid",
        "2020/06/16 21:49:05 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "fork": true,
        "procs": 15,
        "baseline": 32,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "sock",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 11.14236855506897,
      "total_seconds": 11.504009246826172,
      "stats": {
        "sandboxes_per_sec": 39.1
      },
      "ol-stats": {
        "Create().cnt": 424,
        "Create().ms-avg": 129,
        "Create()/acquire-cgroup.cnt": 424,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 424,
        "Create()/acquire-mem.ms-avg": 86,
        "Create()/fork-proc.cnt": 423,
        "Create()/fork-proc.ms-avg": 40,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 209,
        "Create()/make-root-fs.cnt": 424,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 815,
        "Destroy().ms-avg": 51,
        "Destroy()/detach-root.cnt": 424,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 424,
        "Destroy()/kill-procs.ms-avg": 14,
        "Destroy()/remove-root.cnt": 424,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 423,
        "childExit().ms-avg": 44,
        "fork().cnt": 423,
        "fork().ms-avg": 40,
        "forkRequest.cnt": 423,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 441,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 423,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:16 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:49:16 remove worker.pid",
        "2020/06/16 21:49:16 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/tmp/tmphko6yzxu",
        "registry_cache_ms": 3000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 6.040168762207031,
      "total_seconds": 6.284714698791504,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 58,
        "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": 201,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "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": 1675,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1678,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1675,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1674,
        "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": 1675,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:49:23 remove worker.pid",
        "2020/06/16 21:49:23 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.044590950012207,
      "total_seconds": 15.281189203262329,
      "stats": {
        "reqs_per_sec": 285.0
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4275,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4278,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4275,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4274,
        "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": 4275,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:49:38 remove worker.pid",
        "2020/06/16 21:49:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.04635763168335,
      "total_seconds": 15.28040099143982,
      "stats": {
        "reqs_per_sec": 285.2
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 46,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 144,
        "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": 4278,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3904,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4278,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3900,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "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": 4278,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:49:53 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:49:53 remove worker.pid",
        "2020/06/16 21:49:53 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/root/open-lambda/test-registry",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 15.07115364074707,
      "total_seconds": 15.502296686172485,
      "stats": {
        "reqs_per_sec": 252.4
      },
      "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": 140,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3786,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 2937,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3786,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 2933,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 5,
        "web-request.cnt": 3786,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:50:09 remove worker.pid",
        "2020/06/16 21:50:09 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",
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/tmp/tmpcchmp581",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 3.1113336086273193,
      "total_seconds": 3.581911325454712,
      "stats": {
        "reqs_per_sec": 32.140846706629596
      },
      "ol-stats": {
        "Channel().cnt": 100,
        "Channel().ms-avg": 0,
        "Create().cnt": 101,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 101,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 101,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 100,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 141,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 157,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 27,
        "Pause().cnt": 200,
        "Pause().ms-avg": 10,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 56,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 67,
        "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": 27
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:50:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:50:12 remove worker.pid",
        "2020/06/16 21:50:12 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "sandbox_config": {},
        "docker_runtime": "",
        "registry": "/tmp/tmpe1btn80o",
        "registry_cache_ms": 5000,
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "server_mode": "lambda",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        }
      },
      "seconds": 48.387728214263916,
      "total_seconds": 48.94888710975647,
      "stats": {
        "reqs_per_sec": 20.666412656727168
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 43,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 979,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "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": 44
      },
      "errors": [],
      "worker_tail": [
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/06/16 21:51:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/06/16 21:51:01 remove worker.pid",
        "2020/06/16 21:51:01 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 351.39610266685486
}