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Is there an existing issue for this?

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Is your feature request related to a problem? Please describe.

When executing random read operations on small blocks of IO data, the file system's prefetching mechanism may cause substantial IO amplification. This can negatively affect disk throughput and overall system performance.

Describe the solution you'd like.

The system supports direct I/O read operations for volumes, allowing data to be read directly from the storage device without passing through the operating system's cache, thereby improving performance for certain types of I/O operations

Describe an alternate solution.

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Anything else? (Additional Context)

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