EXT4 Introduces iomap Buffered I/O Path With Some Performance Gains
khalidkhair · hn · 2026-10-13
Phoronix reports that Linux's EXT4 filesystem is gaining an iomap-based buffered I/O path, delivering some performance improvements. The change is part of EXT4's ongoing migration from its legacy buffered I/O implementation to the iomap framework already used widely in filesystems like XFS, which simplifies code and improves large-file workloads.
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