{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 2.196134567260742,
      "total_seconds": 2.5338895320892334,
      "stats": {
        "pings_per_sec": 455.3499030036042
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:12 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:12 remove worker.pid",
        "2020/04/21 21:46:12 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 11.982990503311157,
      "total_seconds": 12.24126386642456,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 420,
        "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": 418,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 2982,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 111,
        "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": 1448,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2982
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:24 remove worker.pid",
        "2020/04/21 21:46:24 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.127778053283691,
      "total_seconds": 6.364679574966431,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 93,
        "Create()/acquire-cgroup.cnt": 11,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 11,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 4,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 1524,
        "Pause().cnt": 8,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 42,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 28,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 4,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 952,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1524
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:30 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:30 remove worker.pid",
        "2020/04/21 21:46:30 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": false,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "sandbox": "docker",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 25.872326135635376,
      "total_seconds": 27.500592947006226,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1050,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 364,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 6457,
        "Pause().cnt": 4,
        "Pause().ms-avg": 155,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 1,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3080,
        "web-request.cnt": 4,
        "web-request.ms-avg": 6457
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:57 Kill function: install",
        "2020/04/21 21:46:57 Destroy() [SB 6]",
        "2020/04/21 21:46:58 Kill function: install2",
        "2020/04/21 21:46:58 Destroy() [SB 7]",
        "2020/04/21 21:46:58 Kill function: install3",
        "2020/04/21 21:46:58 Destroy() [SB 9]",
        "2020/04/21 21:46:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:58 remove worker.pid",
        "2020/04/21 21:46:58 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.18128275871276855,
      "total_seconds": 0.4114105701446533,
      "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": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "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": 177,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 3,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 177
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:58 remove worker.pid",
        "2020/04/21 21:46:58 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 0.8502464294433594,
      "total_seconds": 1.0843479633331299,
      "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": 846,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 665,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 21,
        "web-request.cnt": 1,
        "web-request.ms-avg": 846
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:46:59 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:46:59 remove worker.pid",
        "2020/04/21 21:46:59 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 68.15175533294678,
      "total_seconds": 68.3974289894104,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 12,
        "Channel().ms-avg": 0,
        "Create().cnt": 13,
        "Create().ms-avg": 98,
        "Create()/acquire-cgroup.cnt": 13,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 13,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 8,
        "Create()/fresh-proc.ms-avg": 149,
        "Create()/make-root-fs.cnt": 13,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 13,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 13,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 13,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 13,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 13626,
        "Pause().cnt": 10,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 292,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 30,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 5,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 5,
        "pull-lambda.ms-avg": 6,
        "pull-package.cnt": 7,
        "pull-package.ms-avg": 9477,
        "web-request.cnt": 5,
        "web-request.ms-avg": 13626
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:08 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:08 remove worker.pid",
        "2020/04/21 21:48:08 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "procs": 1,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 5.132615566253662,
      "total_seconds": 5.35409688949585,
      "stats": {
        "sandboxes_per_sec": 6.4
      },
      "ol-stats": {
        "Create().cnt": 32,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 32,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 32,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 32,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 32,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 64,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 32,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 32,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 32,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 49,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:13 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:13 remove worker.pid",
        "2020/04/21 21:48:13 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.175228118896484,
      "total_seconds": 10.409373044967651,
      "stats": {
        "sandboxes_per_sec": 44.0
      },
      "ol-stats": {
        "Create().cnt": 441,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 441,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 441,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 440,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 441,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 881,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 441,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 441,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 441,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 440,
        "childExit().ms-avg": 0,
        "fork().cnt": 440,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 440,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 458,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 440,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:24 remove worker.pid",
        "2020/04/21 21:48:24 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.419116020202637,
      "total_seconds": 10.64626431465149,
      "stats": {
        "sandboxes_per_sec": 40.4
      },
      "ol-stats": {
        "Create().cnt": 405,
        "Create().ms-avg": 84,
        "Create()/acquire-cgroup.cnt": 405,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 405,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 404,
        "Create()/fork-proc.ms-avg": 66,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 405,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 809,
        "Destroy().ms-avg": 54,
        "Destroy()/detach-root.cnt": 405,
        "Destroy()/detach-root.ms-avg": 10,
        "Destroy()/kill-procs.cnt": 405,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 405,
        "Destroy()/remove-root.ms-avg": 3,
        "childExit().cnt": 404,
        "childExit().ms-avg": 61,
        "fork().cnt": 404,
        "fork().ms-avg": 66,
        "forkRequest.cnt": 404,
        "forkRequest.ms-avg": 13,
        "fresh-cgroup.cnt": 422,
        "fresh-cgroup.ms-avg": 5,
        "move-to-cg-after-fork.cnt": 404,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:34 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:34 remove worker.pid",
        "2020/04/21 21:48:34 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 1,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 10.780362129211426,
      "total_seconds": 11.117844104766846,
      "stats": {
        "sandboxes_per_sec": 42.1
      },
      "ol-stats": {
        "Create().cnt": 454,
        "Create().ms-avg": 8,
        "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": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 454,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 875,
        "Destroy().ms-avg": 0,
        "Destroy()/detach-root.cnt": 454,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 454,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 454,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 453,
        "childExit().ms-avg": 0,
        "fork().cnt": 453,
        "fork().ms-avg": 7,
        "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": [
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:45 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:45 remove worker.pid",
        "2020/04/21 21:48:45 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "procs": 15,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "sock",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-dir/registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 11.056997537612915,
      "total_seconds": 12.926079511642456,
      "stats": {
        "sandboxes_per_sec": 41.5
      },
      "ol-stats": {
        "Create().cnt": 448,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 448,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 448,
        "Create()/acquire-mem.ms-avg": 75,
        "Create()/fork-proc.cnt": 447,
        "Create()/fork-proc.ms-avg": 51,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "Create()/make-root-fs.cnt": 448,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 863,
        "Destroy().ms-avg": 47,
        "Destroy()/detach-root.cnt": 448,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 448,
        "Destroy()/kill-procs.ms-avg": 9,
        "Destroy()/remove-root.cnt": 448,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 447,
        "childExit().ms-avg": 55,
        "fork().cnt": 447,
        "fork().ms-avg": 51,
        "forkRequest.cnt": 447,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 465,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 447,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:48:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:48:58 remove worker.pid",
        "2020/04/21 21:48:58 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/tmp/tmpidydxqz2",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "import_cache_tree": "",
        "registry_cache_ms": 3000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 6.0350892543792725,
      "total_seconds": 6.275128126144409,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 49,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 168,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1706,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1709,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1706,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1705,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1706,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:49:04 remove worker.pid",
        "2020/04/21 21:49:04 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.041685342788696,
      "total_seconds": 15.273910999298096,
      "stats": {
        "reqs_per_sec": 288.46666666666664
      },
      "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": 136,
        "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": 4327,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4330,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4327,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4326,
        "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": 4327,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:49:20 remove worker.pid",
        "2020/04/21 21:49:20 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.04517412185669,
      "total_seconds": 15.276950359344482,
      "stats": {
        "reqs_per_sec": 285.73333333333335
      },
      "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": 4286,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3881,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4286,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3877,
        "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": 4286,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:35 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:49:35 remove worker.pid",
        "2020/04/21 21:49:35 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/root/open-lambda/test-registry",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 15.064305782318115,
      "total_seconds": 15.29430103302002,
      "stats": {
        "reqs_per_sec": 253.33333333333334
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 7,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 3800,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3023,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3800,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3019,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 3800,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:50 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:49:50 remove worker.pid",
        "2020/04/21 21:49:50 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "import_cache": true,
          "downsize_paused_mem": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/tmp/tmpvyj_ksnp",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "import_cache_tree": "",
        "registry_cache_ms": 5000,
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 2.8369126319885254,
      "total_seconds": 3.2809832096099854,
      "stats": {
        "reqs_per_sec": 35.2498837275168
      },
      "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": 137,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 154,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 101,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 101,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 101,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 100,
        "LambdaFunc.Invoke.ms-avg": 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": 53,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "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": 24
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:49:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:49:54 remove worker.pid",
        "2020/04/21 21:49:54 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "limits": {
          "installer_mem_mb": 250,
          "swappiness": 0,
          "procs": 10,
          "mem_mb": 50
        },
        "sandbox_config": {},
        "server_mode": "lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "sandbox": "sock",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "docker_runtime": "",
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "storage": {
          "root": "private",
          "code": "",
          "scratch": ""
        },
        "pip_mirror": "",
        "registry": "/tmp/tmpudqdf_yd",
        "trace": {
          "memory": false,
          "package": false,
          "evictor": false,
          "cgroups": false
        },
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "mem_pool_mb": 500,
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda"
      },
      "seconds": 42.43226718902588,
      "total_seconds": 43.003164291381836,
      "stats": {
        "reqs_per_sec": 23.56698757419221
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1980,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 38,
        "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": 979,
        "evict.ms-avg": 11,
        "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": 38
      },
      "errors": [],
      "worker_tail": [
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2020/04/21 21:50:37 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2020/04/21 21:50:37 remove worker.pid",
        "2020/04/21 21:50:37 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 365.28060507774353
}