congqixia 19052ef3e5
enhance: Add buffered writer to reduce fwrite syscall (#38570)
Related to previous PR #38157

If mmapped row is too small, frequent fwrite call still cost too much
cpu time for context switching. This PR add buffered write to avoid this
bad case with extra buffer per variable field.

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Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
2024-12-27 12:20:50 +08:00
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