F2FS Will Have Faster Case-Insensitive Lookups With Linux 5.4
Written by Michael Larabel in Linux Storage on 11 September 2019 at 07:28 AM EDT. 11 Comments
LINUX STORAGE --
The EXT4 case-insensitive lookup optimization added to the file-system with the current Linux 5.3 cycle has been ported to the Flash-Friendly File-System (F2FS) for the upcoming Linux 5.4.

F2FS has done a good job following EXT4 that spearheaded this modern case-insensitive directory/file feature that's optional and opt-in on a per directory basis. Like with F2FS' other following of EXT4 around this feature, it's now ported the look-up optimization from 5.3 to its driver. On the EXT4 side it has resulted in around 30% faster look-ups on large directories by introducing a temporary cache to avoid repeated case-folding.

The F2FS patch is now queued as part of its file-system code for the upcoming Linux 5.4 merge window. Besides that optimization, there are a lot of F2FS fixes in general on the way for this next kernel release to end out 2019.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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