Prefetch optimize, adding three prefetch strategies#163
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The prefetch functionality has been preliminarily implemented, supporting two-level flow control and three prefetch strategies.
two-level flow control:
FLEXKV_PREFETCH_CAPACITY_RATIO) of the current CPU block total, do not perform prefetching.Three prefetch strategies:
wait_complete: wait until the prefetch operation of current request complete fully.best_effort: perform as much prefetching as possible during the current prefetch cycle.timeout: perform as much prefetching as possible based on the current request’s timeout duration.