On Donnerstag, 14. Oktober 2010 Dave Chinner wrote:
> > I guess the reason one might want the "allocsize" mount
> > option now becomes the opposite of why one might have
> > wanted it before. I.e., it would be used to reduce
> > the size of the preallocated range beyond EOF, which I
> > could envision might be reasonable in some circumstances.
>
> It now becomes the minimum preallocation size, rather than both the
> minimum and the maximum....
Until now, I often set allocsize to be <nr of data disks>*<stripe size>,
i.e. in a 8 disk RAID-6 with 64KB stripe size = 6*64 = 384KB
I guess this should provide the best performance.
Is my assumption true?
Will it change with the new code?
Does XFS automatically use allocsize=<1 full stripe> so I can skip my
manual allocsize options?
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