{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000"
      },
      "seconds": 2.1774559020996094,
      "total_seconds": 2.3192965984344482,
      "stats": {
        "pings_per_sec": 459.25607659932496
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:10 remove worker.pid",
        "2020/05/19 21:46:10 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 12.69886565208435,
      "total_seconds": 12.939668416976929,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 413,
        "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": 412,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3161,
        "Pause().cnt": 4,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 76,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1596,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3161
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:23 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:23 remove worker.pid",
        "2020/05/19 21:46:23 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 6.560633420944214,
      "total_seconds": 6.801223278045654,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 103,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 11,
        "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": 1632,
        "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": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1005,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1632
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:30 remove worker.pid",
        "2020/05/19 21:46:30 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "docker",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000"
      },
      "seconds": 22.167227268218994,
      "total_seconds": 24.195371866226196,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 832,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 379,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 5530,
        "Pause().cnt": 4,
        "Pause().ms-avg": 27,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2854,
        "web-request.cnt": 4,
        "web-request.ms-avg": 5530
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:53 Kill function: install3",
        "2020/05/19 21:46:53 Destroy() [SB 9]",
        "2020/05/19 21:46:53 Kill function: echo",
        "2020/05/19 21:46:53 Destroy() [SB 0]",
        "2020/05/19 21:46:54 Kill function: install",
        "2020/05/19 21:46:54 Destroy() [SB 6]",
        "2020/05/19 21:46:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:54 remove worker.pid",
        "2020/05/19 21:46:54 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 0.20242524147033691,
      "total_seconds": 0.43517327308654785,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 80,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 198,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 11,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 21,
        "web-request.cnt": 1,
        "web-request.ms-avg": 198
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:54 remove worker.pid",
        "2020/05/19 21:46:54 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 0.8355872631072998,
      "total_seconds": 1.064746618270874,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 76,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "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": 831,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 671,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 831
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:46:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:46:55 remove worker.pid",
        "2020/05/19 21:46:55 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 65.75351905822754,
      "total_seconds": 66.00195002555847,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 142,
        "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": 223,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 20,
        "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": 16,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 13147,
        "Pause().cnt": 10,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 379,
        "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": 6,
        "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": 8991,
        "web-request.cnt": 5,
        "web-request.ms-avg": 13147
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:01 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:01 remove worker.pid",
        "2020/05/19 21:48:01 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 5.146987676620483,
      "total_seconds": 5.369405031204224,
      "stats": {
        "sandboxes_per_sec": 6.0
      },
      "ol-stats": {
        "Create().cnt": 30,
        "Create().ms-avg": 144,
        "Create()/acquire-cgroup.cnt": 30,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 30,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 30,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 30,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 60,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 30,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 30,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 30,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 47,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:07 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:07 remove worker.pid",
        "2020/05/19 21:48:07 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 10.252246141433716,
      "total_seconds": 10.486860990524292,
      "stats": {
        "sandboxes_per_sec": 46.6
      },
      "ol-stats": {
        "Create().cnt": 467,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 467,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 467,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 466,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 467,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 933,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 467,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 467,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 467,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 466,
        "childExit().ms-avg": 0,
        "fork().cnt": 466,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 466,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 484,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 466,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:17 remove worker.pid",
        "2020/05/19 21:48:17 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 10.392942190170288,
      "total_seconds": 10.62871789932251,
      "stats": {
        "sandboxes_per_sec": 45.5
      },
      "ol-stats": {
        "Create().cnt": 456,
        "Create().ms-avg": 83,
        "Create()/acquire-cgroup.cnt": 456,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 456,
        "Create()/acquire-mem.ms-avg": 13,
        "Create()/fork-proc.cnt": 455,
        "Create()/fork-proc.ms-avg": 66,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 456,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 911,
        "Destroy().ms-avg": 49,
        "Destroy()/detach-root.cnt": 456,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 456,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 456,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 455,
        "childExit().ms-avg": 63,
        "fork().cnt": 455,
        "fork().ms-avg": 66,
        "forkRequest.cnt": 455,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 473,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 455,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:28 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:28 remove worker.pid",
        "2020/05/19 21:48:28 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 1,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 10.74785041809082,
      "total_seconds": 11.10796570777893,
      "stats": {
        "sandboxes_per_sec": 45.6
      },
      "ol-stats": {
        "Create().cnt": 489,
        "Create().ms-avg": 6,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 489,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 945,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 489,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 489,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 489,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 488,
        "childExit().ms-avg": 0,
        "fork().cnt": 488,
        "fork().ms-avg": 6,
        "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": [
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:39 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:39 remove worker.pid",
        "2020/05/19 21:48:39 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "procs": 15,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "sock",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 11.015239000320435,
      "total_seconds": 11.394880771636963,
      "stats": {
        "sandboxes_per_sec": 42.4
      },
      "ol-stats": {
        "Create().cnt": 457,
        "Create().ms-avg": 120,
        "Create()/acquire-cgroup.cnt": 457,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 457,
        "Create()/acquire-mem.ms-avg": 71,
        "Create()/fork-proc.cnt": 456,
        "Create()/fork-proc.ms-avg": 46,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 457,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 881,
        "Destroy().ms-avg": 43,
        "Destroy()/detach-root.cnt": 457,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 457,
        "Destroy()/kill-procs.ms-avg": 10,
        "Destroy()/remove-root.cnt": 457,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 456,
        "childExit().ms-avg": 49,
        "fork().cnt": 456,
        "fork().ms-avg": 46,
        "forkRequest.cnt": 456,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 474,
        "fresh-cgroup.ms-avg": 2,
        "move-to-cg-after-fork.cnt": 456,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:50 remove worker.pid",
        "2020/05/19 21:48:50 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 3000,
        "registry": "/tmp/tmpel1u8o_9",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "worker_port": "5000",
        "sandbox_config": {},
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages"
      },
      "seconds": 6.027559757232666,
      "total_seconds": 6.277483224868774,
      "stats": null,
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 150,
        "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": 1707,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1710,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1707,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1706,
        "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": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 1707,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:48:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:48:57 remove worker.pid",
        "2020/05/19 21:48:57 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 15.043381214141846,
      "total_seconds": 15.274576902389526,
      "stats": {
        "reqs_per_sec": 285.4
      },
      "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": 133,
        "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": 4281,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4284,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4281,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4280,
        "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": 4281,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:49:12 remove worker.pid",
        "2020/05/19 21:49:12 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 15.048627614974976,
      "total_seconds": 15.277826309204102,
      "stats": {
        "reqs_per_sec": 287.46666666666664
      },
      "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": 4312,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3917,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4312,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3913,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4312,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:49:27 remove worker.pid",
        "2020/05/19 21:49:27 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 15.065903425216675,
      "total_seconds": 15.29840087890625,
      "stats": {
        "reqs_per_sec": 262.0
      },
      "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": 8,
        "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": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3930,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3085,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3930,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3081,
        "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": 4,
        "web-request.cnt": 3930,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:42 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:49:42 remove worker.pid",
        "2020/05/19 21:49:42 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "server_mode": "lambda",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "docker_runtime": "",
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmpmvuw04z9",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "sandbox_config": {},
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "worker_port": "5000"
      },
      "seconds": 2.779245615005493,
      "total_seconds": 3.2221462726593018,
      "stats": {
        "reqs_per_sec": 35.9812893699124
      },
      "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": 136,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 151,
        "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": 2,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 24,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 50,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 70,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 100,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 100,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 100,
        "web-request.ms-avg": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:49:46 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:49:46 remove worker.pid",
        "2020/05/19 21:49:46 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",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "limits": {
          "mem_mb": 50,
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250
        },
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "trace": {
          "package": false,
          "memory": false,
          "evictor": false,
          "cgroups": false
        },
        "mem_pool_mb": 500,
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "server_mode": "lambda",
        "registry_cache_ms": 5000,
        "registry": "/tmp/tmp51qpq5le",
        "sandbox": "sock",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox_config": {},
        "docker_runtime": "",
        "worker_port": "5000"
      },
      "seconds": 43.75713324546814,
      "total_seconds": 44.34726405143738,
      "stats": {
        "reqs_per_sec": 22.853468135120966
      },
      "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": 683,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "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": 39,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 19,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 981,
        "evict.ms-avg": 12,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 39
      },
      "errors": [],
      "worker_tail": [
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/05/19 21:50:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/05/19 21:50:30 remove worker.pid",
        "2020/05/19 21:50:30 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 366.45047092437744
}