Messages in this thread | | | From | Peter Niemayer <> | Subject | XFS support for TRIM / blkdev_issue_discard? | Date | Tue, 14 Apr 2009 16:44:01 +0200 |
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Dear Felix Blyakher,
do you know whether there are plans to support the ATA TRIM command / blkdev_issue_discard() call in XFS for Linux anytime soon?
I ask because as someone who is currently benchmarking solid state disks for certain usage scenarios I noticed that other filesystems are starting to support the discarding of unused blocks, which allows to prevent performance-degradation of SSDs during heavy use. (See e.g. http://www.mail-archive.com/cluster-devel@redhat.com/msg03401.html on the GFS2 support for the discard feature, it seems not too hard to implement the support)
Amongst other SSDs, we have one in our tests that supports the ATA TRIM command, and I would like to test the benefits of it, even if that requires me to install an early kernel pre-release.
(Currently, XFS is our favorite filesystem for several reasons, so it would be great if we could run our TRIM-support-benchmarks using it)
Regards,
Peter Niemayer
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