[mythtv-users] XFS: options when running mkfs.xfs
David Brodbeck
gull at gull.us
Wed Sep 5 16:42:25 UTC 2007
On Sep 4, 2007, at 5:51 PM, Phill Edwards wrote:
>
> Uh-oh - urban myth flame coming here! I had always been led to believe
> that unlike their Windows counterparts "unix file systems never need
> defragging".
In *normal* usage I've never had to defragment a Linux or Unix
filesystem. But keeping a filesystem continually 96% full is not
normal usage. ;)
Whether the fragmentation *matters* is another issue entirely. I
felt that my system had lost performance over time, and when I
started using xfs_fsr regularly I felt it came back. But I have no
benchmarks to back that up, so it may be a placebo effect. xfs_fsr
bills itself as a "filesystem reorganizer," so it may not be strictly
correct to call this "defragmentation." The manual page does a good
job explaining what it does if you're curious.
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