{
  "runs": [
    {
      "test": "ping_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 2.175459146499634,
      "total_seconds": 2.6555118560791016,
      "stats": {
        "pings_per_sec": 459.67771190466925
      },
      "ol-stats": {
        "fresh-cgroup.cnt": 17,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:49:43 remove worker.pid",
        "2021/02/26 21:49:43 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 13.77351188659668,
      "total_seconds": 14.017143964767456,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 458,
        "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": 456,
        "Create()/make-root-fs.cnt": 10,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 10,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 10,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 10,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 3429,
        "Pause().cnt": 4,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 201,
        "fresh-cgroup.cnt": 27,
        "fresh-cgroup.ms-avg": 0,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 5,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 1528,
        "web-request.cnt": 4,
        "web-request.ms-avg": 3429
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:49:57 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:49:57 remove worker.pid",
        "2021/02/26 21:49:57 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 6.688234090805054,
      "total_seconds": 6.929094314575195,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 11,
        "Create().ms-avg": 95,
        "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": 5,
        "Create()/fresh-proc.cnt": 7,
        "Create()/fresh-proc.ms-avg": 143,
        "Create()/make-root-fs.cnt": 11,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 11,
        "Destroy().ms-avg": 3,
        "Destroy()/detach-root.cnt": 11,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 11,
        "Destroy()/kill-procs.ms-avg": 2,
        "Destroy()/remove-root.cnt": 11,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 1663,
        "Pause().cnt": 8,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 46,
        "Unpause().cnt": 3,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 4,
        "childExit().ms-avg": 0,
        "fork().cnt": 4,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 4,
        "forkRequest.ms-avg": 4,
        "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": 1040,
        "web-request.cnt": 4,
        "web-request.ms-avg": 1663
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:04 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:50:04 remove worker.pid",
        "2021/02/26 21:50:04 exiting",
        ""
      ]
    },
    {
      "test": "install_tests",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": false
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "docker",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 36.87494921684265,
      "total_seconds": 39.20508408546448,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 10,
        "Channel().ms-avg": 0,
        "Create().cnt": 10,
        "Create().ms-avg": 2477,
        "Destroy().cnt": 10,
        "Destroy().ms-avg": 526,
        "LambdaFunc.Invoke.cnt": 4,
        "LambdaFunc.Invoke.ms-avg": 9206,
        "Pause().cnt": 4,
        "Pause().ms-avg": 98,
        "ServeHTTP.cnt": 4,
        "ServeHTTP.ms-avg": 1,
        "pull-lambda.cnt": 4,
        "pull-lambda.ms-avg": 2,
        "pull-package.cnt": 6,
        "pull-package.ms-avg": 2806,
        "web-request.cnt": 4,
        "web-request.ms-avg": 9206
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:50:41 Kill function: install",
        "2021/02/26 21:50:41 Destroy() [SB 6]",
        "2021/02/26 21:50:42 Kill function: install2",
        "2021/02/26 21:50:42 Destroy() [SB 7]",
        "2021/02/26 21:50:42 Kill function: install3",
        "2021/02/26 21:50:42 Destroy() [SB 9]",
        "2021/02/26 21:50:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:50:43 remove worker.pid",
        "2021/02/26 21:50:43 exiting",
        ""
      ]
    },
    {
      "test": "fork_bomb",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 0.18545293807983398,
      "total_seconds": 0.41817164421081543,
      "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": 181,
        "Pause().cnt": 2,
        "Pause().ms-avg": 6,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 13,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 1,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 19,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 3,
        "web-request.cnt": 1,
        "web-request.ms-avg": 181
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:43 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:50:43 remove worker.pid",
        "2021/02/26 21:50:43 exiting",
        ""
      ]
    },
    {
      "test": "max_mem_alloc",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 0.8649249076843262,
      "total_seconds": 1.0999085903167725,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 1,
        "Channel().ms-avg": 0,
        "Create().cnt": 2,
        "Create().ms-avg": 79,
        "Create()/acquire-cgroup.cnt": 2,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 2,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1,
        "Create()/fork-proc.ms-avg": 8,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "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": 860,
        "Pause().cnt": 2,
        "Pause().ms-avg": 4,
        "ServeHTTP.cnt": 1,
        "ServeHTTP.ms-avg": 693,
        "childExit().cnt": 1,
        "childExit().ms-avg": 0,
        "fork().cnt": 1,
        "fork().ms-avg": 8,
        "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": 3,
        "pull-lambda.cnt": 1,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1,
        "web-request.ms-avg": 860
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:50:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:50:44 remove worker.pid",
        "2021/02/26 21:50:44 exiting",
        ""
      ]
    },
    {
      "test": "numpy_test",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 59.21648621559143,
      "total_seconds": 59.679086446762085,
      "stats": null,
      "ol-stats": {
        "Channel().cnt": 13,
        "Channel().ms-avg": 0,
        "Create().cnt": 14,
        "Create().ms-avg": 145,
        "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": 202,
        "Create()/make-root-fs.cnt": 14,
        "Create()/make-root-fs.ms-avg": 12,
        "Destroy().cnt": 14,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 14,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 14,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 14,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 5,
        "LambdaFunc.Invoke.ms-avg": 11839,
        "Pause().cnt": 10,
        "Pause().ms-avg": 5,
        "ServeHTTP.cnt": 5,
        "ServeHTTP.ms-avg": 675,
        "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": 4,
        "pull-package.cnt": 8,
        "pull-package.ms-avg": 6945,
        "web-request.cnt": 5,
        "web-request.ms-avg": 11839
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:44 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:51:44 remove worker.pid",
        "2021/02/26 21:51:44 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "fork": false,
        "seconds": 5
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 5.252735376358032,
      "total_seconds": 5.477104425430298,
      "stats": {
        "sandboxes_per_sec": 5.2
      },
      "ol-stats": {
        "Create().cnt": 26,
        "Create().ms-avg": 176,
        "Create()/acquire-cgroup.cnt": 26,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 26,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fresh-proc.cnt": 26,
        "Create()/fresh-proc.ms-avg": 147,
        "Create()/make-root-fs.cnt": 26,
        "Create()/make-root-fs.ms-avg": 27,
        "Destroy().cnt": 52,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 26,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 26,
        "Destroy()/kill-procs.ms-avg": 1,
        "Destroy()/remove-root.cnt": 26,
        "Destroy()/remove-root.ms-avg": 0,
        "fresh-cgroup.cnt": 43,
        "fresh-cgroup.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:51:49 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:51:49 remove worker.pid",
        "2021/02/26 21:51:49 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 0,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 10.161365270614624,
      "total_seconds": 10.39805817604065,
      "stats": {
        "sandboxes_per_sec": 39.1
      },
      "ol-stats": {
        "Create().cnt": 392,
        "Create().ms-avg": 11,
        "Create()/acquire-cgroup.cnt": 392,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 392,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 391,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 136,
        "Create()/make-root-fs.cnt": 392,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 783,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 392,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 392,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 392,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 391,
        "childExit().ms-avg": 0,
        "fork().cnt": 391,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 391,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 409,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 391,
        "move-to-cg-after-fork.ms-avg": 0
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:00 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:00 remove worker.pid",
        "2021/02/26 21:52:00 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 0,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 10.375571727752686,
      "total_seconds": 10.60610294342041,
      "stats": {
        "sandboxes_per_sec": 41.3
      },
      "ol-stats": {
        "Create().cnt": 414,
        "Create().ms-avg": 96,
        "Create()/acquire-cgroup.cnt": 414,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 414,
        "Create()/acquire-mem.ms-avg": 18,
        "Create()/fork-proc.cnt": 413,
        "Create()/fork-proc.ms-avg": 73,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 135,
        "Create()/make-root-fs.cnt": 414,
        "Create()/make-root-fs.ms-avg": 2,
        "Destroy().cnt": 827,
        "Destroy().ms-avg": 59,
        "Destroy()/detach-root.cnt": 414,
        "Destroy()/detach-root.ms-avg": 1,
        "Destroy()/kill-procs.cnt": 414,
        "Destroy()/kill-procs.ms-avg": 15,
        "Destroy()/remove-root.cnt": 414,
        "Destroy()/remove-root.ms-avg": 0,
        "childExit().cnt": 413,
        "childExit().ms-avg": 75,
        "fork().cnt": 413,
        "fork().ms-avg": 73,
        "forkRequest.cnt": 413,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 431,
        "fresh-cgroup.ms-avg": 3,
        "move-to-cg-after-fork.cnt": 413,
        "move-to-cg-after-fork.ms-avg": 3
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:11 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:11 remove worker.pid",
        "2021/02/26 21:52:11 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 1,
        "baseline": 32,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 10.89096188545227,
      "total_seconds": 11.232242345809937,
      "stats": {
        "sandboxes_per_sec": 41.0
      },
      "ol-stats": {
        "Create().cnt": 443,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 443,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 443,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 442,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 140,
        "Create()/make-root-fs.cnt": 443,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 853,
        "Destroy().ms-avg": 1,
        "Destroy()/detach-root.cnt": 443,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 443,
        "Destroy()/kill-procs.ms-avg": 0,
        "Destroy()/remove-root.cnt": 443,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 442,
        "childExit().ms-avg": 0,
        "fork().cnt": 442,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 442,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 460,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 442,
        "move-to-cg-after-fork.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:22 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:22 remove worker.pid",
        "2021/02/26 21:52:22 exiting",
        ""
      ]
    },
    {
      "test": "sock_churn",
      "params": {
        "procs": 15,
        "baseline": 32,
        "fork": true,
        "seconds": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-dir/registry",
        "sandbox": "sock",
        "server_mode": "sock",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 11.274849653244019,
      "total_seconds": 11.64376950263977,
      "stats": {
        "sandboxes_per_sec": 37.1
      },
      "ol-stats": {
        "Create().cnt": 404,
        "Create().ms-avg": 141,
        "Create()/acquire-cgroup.cnt": 404,
        "Create()/acquire-cgroup.ms-avg": 1,
        "Create()/acquire-mem.cnt": 404,
        "Create()/acquire-mem.ms-avg": 82,
        "Create()/fork-proc.cnt": 403,
        "Create()/fork-proc.ms-avg": 55,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 289,
        "Create()/make-root-fs.cnt": 404,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 775,
        "Destroy().ms-avg": 52,
        "Destroy()/detach-root.cnt": 404,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 404,
        "Destroy()/kill-procs.ms-avg": 12,
        "Destroy()/remove-root.cnt": 404,
        "Destroy()/remove-root.ms-avg": 0,
        "Pause().cnt": 32,
        "Pause().ms-avg": 1,
        "childExit().cnt": 403,
        "childExit().ms-avg": 60,
        "fork().cnt": 403,
        "fork().ms-avg": 55,
        "forkRequest.cnt": 403,
        "forkRequest.ms-avg": 11,
        "fresh-cgroup.cnt": 421,
        "fresh-cgroup.ms-avg": 4,
        "move-to-cg-after-fork.cnt": 403,
        "move-to-cg-after-fork.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:33 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:33 remove worker.pid",
        "2021/02/26 21:52:33 exiting",
        ""
      ]
    },
    {
      "test": "update_code",
      "params": {},
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/tmp/tmpdi7f5vpg",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 3000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 6.035964250564575,
      "total_seconds": 6.28291392326355,
      "stats": null,
      "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": 138,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1636,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 1639,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 1636,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 1635,
        "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": 46,
        "web-request.cnt": 1636,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:40 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:40 remove worker.pid",
        "2021/02/26 21:52:40 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 1,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 15.043676137924194,
      "total_seconds": 15.280943155288696,
      "stats": {
        "reqs_per_sec": 284.26666666666665
      },
      "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": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4264,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 4267,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4264,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 4263,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 7,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 6,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 1,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 1,
        "web-request.cnt": 4264,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:52:55 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:52:55 remove worker.pid",
        "2021/02/26 21:52:55 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 2,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 15.049044847488403,
      "total_seconds": 15.281496047973633,
      "stats": {
        "reqs_per_sec": 285.73333333333335
      },
      "ol-stats": {
        "Channel().cnt": 3,
        "Channel().ms-avg": 0,
        "Create().cnt": 4,
        "Create().ms-avg": 45,
        "Create()/acquire-cgroup.cnt": 4,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 4,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 3,
        "Create()/fork-proc.ms-avg": 7,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 139,
        "Create()/make-root-fs.cnt": 4,
        "Create()/make-root-fs.ms-avg": 3,
        "Destroy().cnt": 4,
        "Destroy().ms-avg": 4,
        "Destroy()/detach-root.cnt": 4,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 4,
        "Destroy()/kill-procs.ms-avg": 3,
        "Destroy()/remove-root.cnt": 4,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 4286,
        "LambdaFunc.Invoke.ms-avg": 1,
        "Pause().cnt": 3798,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 4286,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3794,
        "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": 4286,
        "web-request.ms-avg": 1
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:10 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:53:10 remove worker.pid",
        "2021/02/26 21:53:10 exiting",
        ""
      ]
    },
    {
      "test": "stress_one_lambda",
      "params": {
        "procs": 8,
        "seconds": 15
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": false,
          "import_cache": true
        },
        "registry": "/root/open-lambda/test-registry",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 15.072569131851196,
      "total_seconds": 15.30569076538086,
      "stats": {
        "reqs_per_sec": 258.1333333333333
      },
      "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": 139,
        "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": 1,
        "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": 3872,
        "LambdaFunc.Invoke.ms-avg": 2,
        "Pause().cnt": 3055,
        "Pause().ms-avg": 0,
        "ServeHTTP.cnt": 3872,
        "ServeHTTP.ms-avg": 0,
        "Unpause().cnt": 3051,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 3,
        "childExit().ms-avg": 0,
        "fork().cnt": 3,
        "fork().ms-avg": 8,
        "forkRequest.cnt": 3,
        "forkRequest.ms-avg": 7,
        "fresh-cgroup.cnt": 21,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 3,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 3,
        "pull-lambda.ms-avg": 6,
        "web-request.cnt": 3872,
        "web-request.ms-avg": 2
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:26 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:53:26 remove worker.pid",
        "2021/02/26 21:53:26 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 100,
        "alloc_mb": 1
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "registry": "/tmp/tmpdj_o0mjr",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 3.0875251293182373,
      "total_seconds": 3.5221214294433594,
      "stats": {
        "reqs_per_sec": 32.389375788294785
      },
      "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": 138,
        "Create()/make-root-fs.cnt": 101,
        "Create()/make-root-fs.ms-avg": 0,
        "Destroy().cnt": 153,
        "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": 26,
        "Pause().cnt": 200,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 100,
        "ServeHTTP.ms-avg": 6,
        "Unpause().cnt": 99,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 100,
        "childExit().ms-avg": 3,
        "evict.cnt": 52,
        "evict.ms-avg": 11,
        "fork().cnt": 100,
        "fork().ms-avg": 5,
        "forkRequest.cnt": 100,
        "forkRequest.ms-avg": 4,
        "fresh-cgroup.cnt": 69,
        "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": 26
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:53:29 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:53:29 remove worker.pid",
        "2021/02/26 21:53:29 exiting",
        ""
      ]
    },
    {
      "test": "call_each_once_exec",
      "params": {
        "lambda_count": 1000,
        "alloc_mb": 10
      },
      "pass": true,
      "conf": {
        "SOCK_base_path": "/root/open-lambda/test-dir/lambda",
        "sandbox_config": {},
        "storage": {
          "scratch": "",
          "root": "private",
          "code": ""
        },
        "import_cache_tree": "",
        "pip_mirror": "",
        "features": {
          "downsize_paused_mem": true,
          "reuse_cgroups": true,
          "import_cache": true
        },
        "registry": "/tmp/tmpe676eh9_",
        "sandbox": "sock",
        "server_mode": "lambda",
        "limits": {
          "procs": 10,
          "swappiness": 0,
          "installer_mem_mb": 250,
          "mem_mb": 50
        },
        "registry_cache_ms": 5000,
        "docker_runtime": "",
        "trace": {
          "cgroups": false,
          "package": false,
          "memory": false,
          "evictor": false
        },
        "Pkgs_dir": "/root/open-lambda/test-dir/lambda/packages",
        "worker_dir": "/root/open-lambda/test-dir/worker",
        "mem_pool_mb": 500,
        "worker_port": "5000"
      },
      "seconds": 47.48218822479248,
      "total_seconds": 48.04802417755127,
      "stats": {
        "reqs_per_sec": 21.060554441626927
      },
      "ol-stats": {
        "Channel().cnt": 1000,
        "Channel().ms-avg": 0,
        "Create().cnt": 1001,
        "Create().ms-avg": 8,
        "Create()/acquire-cgroup.cnt": 1001,
        "Create()/acquire-cgroup.ms-avg": 0,
        "Create()/acquire-mem.cnt": 1001,
        "Create()/acquire-mem.ms-avg": 0,
        "Create()/fork-proc.cnt": 1000,
        "Create()/fork-proc.ms-avg": 6,
        "Create()/fresh-proc.cnt": 1,
        "Create()/fresh-proc.ms-avg": 137,
        "Create()/make-root-fs.cnt": 1001,
        "Create()/make-root-fs.ms-avg": 1,
        "Destroy().cnt": 1982,
        "Destroy().ms-avg": 6,
        "Destroy()/detach-root.cnt": 1001,
        "Destroy()/detach-root.ms-avg": 0,
        "Destroy()/kill-procs.cnt": 1001,
        "Destroy()/kill-procs.ms-avg": 7,
        "Destroy()/remove-root.cnt": 1001,
        "Destroy()/remove-root.ms-avg": 0,
        "LambdaFunc.Invoke.cnt": 1000,
        "LambdaFunc.Invoke.ms-avg": 42,
        "Pause().cnt": 2000,
        "Pause().ms-avg": 9,
        "ServeHTTP.cnt": 1000,
        "ServeHTTP.ms-avg": 20,
        "Unpause().cnt": 999,
        "Unpause().ms-avg": 0,
        "childExit().cnt": 1000,
        "childExit().ms-avg": 4,
        "evict.cnt": 981,
        "evict.ms-avg": 13,
        "fork().cnt": 1000,
        "fork().ms-avg": 6,
        "forkRequest.cnt": 1000,
        "forkRequest.ms-avg": 5,
        "fresh-cgroup.cnt": 41,
        "fresh-cgroup.ms-avg": 0,
        "move-to-cg-after-fork.cnt": 1000,
        "move-to-cg-after-fork.ms-avg": 0,
        "pull-lambda.cnt": 1000,
        "pull-lambda.ms-avg": 2,
        "web-request.cnt": 1000,
        "web-request.ms-avg": 43
      },
      "errors": [],
      "worker_tail": [
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/freezer/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/hugetlb/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/memory/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/perf_event/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/systemd/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 remove /sys/fs/cgroup/pids/test-dir-sandboxes [CGROUP POOL test-dir-sandboxes]",
        "2021/02/26 21:54:17 save stats to /root/open-lambda/test-dir/worker/stats.json",
        "2021/02/26 21:54:17 remove worker.pid",
        "2021/02/26 21:54:17 exiting",
        ""
      ]
    }
  ],
  "passed": 18,
  "failed": 0,
  "seconds": 460.7668664455414
}