扩大规模可以提高效率，但这需要资本设备。
Scaling up would be more efficient, but requires capital equipment.
通过在这些前端和后端驱动程序中的virtio，为开发模拟设备提供标准化接口，从而增加代码的跨平台重用率并提高效率。
These front-end and back-end drivers are where virtio comes in, providing a standardized interface for the development of emulated device access to propagate code reuse and increase efficiency.
为了提高效率，Linux对请求进行缓存，避免将所有请求发送到物理设备。
For efficiency, Linux maintains a cache of the requests to avoid having to go back out to the physical device for all requests.
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