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Linux 6.3 greatly optimizes Btrfs performance with a 3-10-fold increase in performance

2025-04-04 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >

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CTOnews.com February 21, SUSE's David Sterba recently submitted an update to the Btrfs driver for Linux 6.3. Like previous Linux kernel development cycles, this Btrfs Pull further optimizes performance and introduces some new features.

This driver update introduces a block group allocation class (block group allocation class) algorithm for Btrfs in Linux 6.3.It packages files according to size to avoid fragmentation in the block group.

Btrfs in Linux 6.2improves reliability for RAID5 and RAID6, while further code clean-up and refactoring work is carried out in Linux 6.3to enhance support for these two RAID modes.

CTOnews.com attached the main contents of this driver Pull:

Performance

Send:utimes caches directories and issues commands only if necessary

Speed up 10 times faster

The resulting stream is smaller (no extra utimes commands are issued)

Does not affect compatibility

Fiemap: skip backref checking for shared leaves

3x acceleration on all sample file systems that share leaves (for example, on some snapshot)

Optimize the details of b-tree key lookup and speed up metadata operations (sample test: fs_mark file transfer speed increases by 10% per second)

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