{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 2.1966934204101562,
      "total_seconds": 2.5917930603027344,
      "stats": {
        "pings_per_sec": 455.2336626211983
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:48:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:48:55 remove worker.pid",
        "2021/03/11 21:48:55 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.976372957229614,
      "total_seconds": 16.21137285232544,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 529,
        "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": 527,
        "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": 3982,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 124,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 19,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1816,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3982
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:49:11 remove worker.pid",
        "2021/03/11 21:49:11 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.10236382484436,
      "total_seconds": 10.338946104049683,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 90,
        "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": 135,
        "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": 2517,
        "Pause().cnt": 8,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 49,
        "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": 1611,
        "web-request.cnt": 4,
        "web-request.ms-avg": 2517
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:49:22 remove worker.pid",
        "2021/03/11 21:49:22 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "docker",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "registry": "/root/open-lambda/test-registry",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": false
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 28.43470001220703,
      "total_seconds": 29.45675754547119,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 1444,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 451,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 7096,
        "Pause().cnt": 4,
        "Pause().ms-avg": 28,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 7,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 3244,
        "web-request.cnt": 4,
        "web-request.ms-avg": 7096
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:49:50 Kill function: install",
        "2021/03/11 21:49:50 Destroy() [SB 6]",
        "2021/03/11 21:49:51 Kill function: install2",
        "2021/03/11 21:49:51 Destroy() [SB 7]",
        "2021/03/11 21:49:51 Kill function: install3",
        "2021/03/11 21:49:51 Destroy() [SB 9]",
        "2021/03/11 21:49:51 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:49:51 remove worker.pid",
        "2021/03/11 21:49:51 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 3.47011399269104,
      "total_seconds": 3.601172924041748,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 1724,
        "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 3432,
        "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": 3466,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 12,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 6,
        "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": 1,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 3466
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:49:55 remove worker.pid",
        "2021/03/11 21:49:55 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 0.8765857219696045,
      "total_seconds": 1.1079185009002686,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 73,
        "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": 132,
        "Create()/make-root-fs.cnt": 2,
        "Create()/make-root-fs.ms-avg": 4,
        "Destroy().cnt": 2,
        "Destroy().ms-avg": 2,
        "Destroy()/detach-root.cnt": 2,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 2,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 2,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1,
        "LambdaFunc.Invoke.ms-avg": 872,
        "Pause().cnt": 2,
        "Pause().ms-avg": 3,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 719,
        "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": 2,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 872
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:49:56 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:49:56 remove worker.pid",
        "2021/03/11 21:49:56 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 46.488516330718994,
      "total_seconds": 46.79518961906433,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 164,
        "Create()/acquire-cgroup.cnt": 14,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 14,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 5,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 9,
        "Create()/fresh-proc.ms-avg": 205,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 30,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 9294,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 624,
        "Unpause().cnt": 4,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 5,
        "childExit().ms-avg": 0,
        "fork().cnt": 5,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 5,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 31,
        "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": 51,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 5311,
        "web-request.cnt": 5,
        "web-request.ms-avg": 9294
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:50:43 remove worker.pid",
        "2021/03/11 21:50:43 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": false,
        "seconds": 5,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 5.061366558074951,
      "total_seconds": 5.1850316524505615,
      "stats": {
        "sandboxes_per_sec": 4.0
      },
      "ol-stats": {
        "Create().cnt": 20,
        "Create().ms-avg": 237,
        "Create()/acquire-cgroup.cnt": 20,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 20,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 20,
        "Create()/fresh-proc.ms-avg": 197,
        "Create()/make-root-fs.cnt": 20,
        "Create()/make-root-fs.ms-avg": 39,
        "Destroy().cnt": 40,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 20,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 20,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 20,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 37,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:48 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:50:48 remove worker.pid",
        "2021/03/11 21:50:48 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.239129066467285,
      "total_seconds": 10.472295761108398,
      "stats": {
        "sandboxes_per_sec": 47.6
      },
      "ol-stats": {
        "Create().cnt": 477,
        "Create().ms-avg": 10,
        "Create()/acquire-cgroup.cnt": 477,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 477,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 476,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 129,
        "Create()/make-root-fs.cnt": 477,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 953,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 477,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 477,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 477,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 476,
        "childExit().ms-avg": 0,
        "fork().cnt": 476,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 476,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 494,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 476,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:50:58 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:50:58 remove worker.pid",
        "2021/03/11 21:50:58 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 0,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.321068048477173,
      "total_seconds": 10.556962966918945,
      "stats": {
        "sandboxes_per_sec": 48.6
      },
      "ol-stats": {
        "Create().cnt": 487,
        "Create().ms-avg": 78,
        "Create()/acquire-cgroup.cnt": 487,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 487,
        "Create()/acquire-mem.ms-avg": 15,
        "Create()/fork-proc.cnt": 486,
        "Create()/fork-proc.ms-avg": 58,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 131,
        "Create()/make-root-fs.cnt": 487,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 973,
        "Destroy().ms-avg": 44,
        "Destroy()/detach-root.cnt": 487,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 487,
        "Destroy()/kill-procs.ms-avg": 11,
        "Destroy()/remove-root.cnt": 487,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 486,
        "childExit().ms-avg": 56,
        "fork().cnt": 486,
        "fork().ms-avg": 58,
        "forkRequest.cnt": 486,
        "forkRequest.ms-avg": 9,
        "fresh-cgroup.cnt": 504,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 486,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:51:09 remove worker.pid",
        "2021/03/11 21:51:09 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 10.71803903579712,
      "total_seconds": 11.159687519073486,
      "stats": {
        "sandboxes_per_sec": 47.4
      },
      "ol-stats": {
        "Create().cnt": 507,
        "Create().ms-avg": 7,
        "Create()/acquire-cgroup.cnt": 507,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 507,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 506,
        "Create()/fork-proc.ms-avg": 5,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 133,
        "Create()/make-root-fs.cnt": 507,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 981,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 507,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 507,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 507,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 506,
        "childExit().ms-avg": 0,
        "fork().cnt": 506,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 506,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 524,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 506,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:20 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:51:20 remove worker.pid",
        "2021/03/11 21:51:20 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "baseline": 32,
        "fork": true,
        "seconds": 10,
        "procs": 15
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "sock",
        "registry": "/root/open-lambda/test-dir/registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 11.018882036209106,
      "total_seconds": 11.481988191604614,
      "stats": {
        "sandboxes_per_sec": 41.0
      },
      "ol-stats": {
        "Create().cnt": 443,
        "Create().ms-avg": 128,
        "Create()/acquire-cgroup.cnt": 443,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 443,
        "Create()/acquire-mem.ms-avg": 73,
        "Create()/fork-proc.cnt": 442,
        "Create()/fork-proc.ms-avg": 51,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 225,
        "Create()/make-root-fs.cnt": 443,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 853,
        "Destroy().ms-avg": 46,
        "Destroy()/detach-root.cnt": 443,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 443,
        "Destroy()/kill-procs.ms-avg": 8,
        "Destroy()/remove-root.cnt": 443,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 0,
        "childExit().cnt": 442,
        "childExit().ms-avg": 52,
        "fork().cnt": 442,
        "fork().ms-avg": 51,
        "forkRequest.cnt": 442,
        "forkRequest.ms-avg": 10,
        "fresh-cgroup.cnt": 460,
        "fresh-cgroup.ms-avg": 7,
        "move-to-cg-after-fork.cnt": 442,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:31 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:51:31 remove worker.pid",
        "2021/03/11 21:51:31 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 3000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "registry": "/tmp/tmp4btuxs45",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 6.031227111816406,
      "total_seconds": 6.871556758880615,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 42,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 134,
        "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": 1724,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1727,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1724,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1723,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "fork().cnt": 3,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1724,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:38 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:51:38 remove worker.pid",
        "2021/03/11 21:51:38 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.036251783370972,
      "total_seconds": 15.265494585037231,
      "stats": {
        "reqs_per_sec": 291.4
      },
      "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": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "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": 4371,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4374,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4371,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4370,
        "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": 1,
        "web-request.cnt": 4371,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:51:54 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:51:54 remove worker.pid",
        "2021/03/11 21:51:54 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 2
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.037782192230225,
      "total_seconds": 15.26548957824707,
      "stats": {
        "reqs_per_sec": 290.53333333333336
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 41,
        "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": 129,
        "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": 4358,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4073,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4358,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4069,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 1,
        "web-request.cnt": 4358,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:52:09 remove worker.pid",
        "2021/03/11 21:52:09 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "seconds": 15,
        "procs": 8
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/root/open-lambda/test-registry",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": false,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 15.056279420852661,
      "total_seconds": 15.286189317703247,
      "stats": {
        "reqs_per_sec": 289.2
      },
      "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": 135,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4338,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3018,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4338,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3014,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 1,
        "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": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 4,
        "web-request.cnt": 4338,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:24 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:52:24 remove worker.pid",
        "2021/03/11 21:52:24 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "docker_runtime": "",
        "storage": {
          "root": "private",
          "scratch": "",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "registry": "/tmp/tmpm79suip2",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 2.5649755001068115,
      "total_seconds": 3.003446578979492,
      "stats": {
        "reqs_per_sec": 38.98762590468393
      },
      "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": 130,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 158,
        "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": 22,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 5,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 57,
        "evict.ms-avg": 9,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 65,
        "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": 1,
        "web-request.cnt": 100,
        "web-request.ms-avg": 22
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:52:27 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:52:27 remove worker.pid",
        "2021/03/11 21:52:27 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "pip_mirror": "",
        "registry_cache_ms": 5000,
        "import_cache_tree": "",
        "server_mode": "lambda",
        "registry": "/tmp/tmpil8q8f9p",
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "sandbox": "sock",
        "limits": {
          "mem_mb": 50,
          "swappiness": 0,
          "procs": 10,
          "installer_mem_mb": 250
        },
        "mem_pool_mb": 500,
        "docker_runtime": "",
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "features": {
          "reuse_cgroups": true,
          "downsize_paused_mem": true,
          "import_cache": true
        },
        "worker_port": "5000",
        "trace": {
          "evictor": false,
          "package": false,
          "memory": false,
          "cgroups": false
        },
        "sandbox_config": {},
        "worker_dir": "/root/open-lambda/test-dir/worker"
      },
      "seconds": 40.72473931312561,
      "total_seconds": 41.881147146224976,
      "stats": {
        "reqs_per_sec": 24.555113957211113
      },
      "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": 131,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 1981,
        "Destroy().ms-avg": 5,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 6,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 37,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 18,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 3,
        "evict.cnt": 980,
        "evict.ms-avg": 10,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 40,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 37
      },
      "errors": [],
      "worker_tail": [
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:08 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/03/11 21:53:09 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/03/11 21:53:09 remove worker.pid",
        "2021/03/11 21:53:09 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
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