October 1, 2022

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Linux 6.0 introduces F2FS low memory mode to reduce memory usage with performance

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Linux 6.0 introduces F2FS low memory mode to reduce memory usage with performance



 

Linux 6.0 introduces F2FS low memory mode to reduce memory usage with performance.

Flash Friendly File-System (F2FS) remains a powerful file system option for flash memory devices, especially SSDs and portable hard drives.

In Linux 6.0, this file system driver brings more improvements, introducing some new features including Low-Memory Mode.

 

 

 

Low memory mode adjusts file system behavior to reduce memory usage on low-end Android phones and devices with less memory.

But this behavior at the cost of saving memory space may affect the running performance.

 

Linux 6.0’s F2FS also has improvements in its atomic write operations, foreground garbage collection time, fixes, and more.

 

F2FS maintainer Jaegeuk Kim summarizes the work of this development cycle:

During this development cycle, we mainly fixed some corner cases where the per-file compression flags were inappropriately manipulated.

Also, we found that f2fs calculates incorrect blocks in a block when the zone capacity is set, so it was fixed with an extra sysfs entry for checking.

Finally, this series includes several patches related to the new atomic write support, such as several bug fixes and re-adding atomic_write_abort support since we mistakenly removed this support patch in the previous release.

See the PR for details .



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