exFAT File-System Performance On Linux 5.9

Written by Michael Larabel in Software on 10 November 2020. Page 3 of 3. 13 Comments

With FS-Mark both exFAT drivers yielded lower performance than F2FS and EXT4.

IOR write performance with the exFAT kernel driver was noticeably slower than the rest -- including exFAT FUSE.

PostMark exFAT with the native kernel driver was much faster than FUSE but behind that of EXT4 and F2FS.

If taking the geometric mean for all of the storage tests for this article, the mainline exFAT kernel driver on Linux 5.9 offers 43% higher performance over the exFAT FUSE driver. Still though EXT4 and F2FS were much faster on this USB3 flash drive if performance is more of a concern than cross-OS compatibility. In any case, it's great continuing to see the exFAT Linux kernel driver mature.

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Michael Larabel

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 20,000 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, LinkedIn, or contacted via MichaelLarabel.com.