Small files perform much faster on newly formatted fs?

Norbert Veber nveber at pyre.virge.net
Wed Jun 8 07:26:38 CDT 2011


On Wed, Jun 08, 2011 at 09:11:10AM +0200, Michael Monnerie wrote:
> On Dienstag, 7. Juni 2011 Norbert Veber wrote:
> > 20 seconds vs 3+ minutes?!  The only difference I can see is
> > lazy-count=1 and a larger agcount.  Sunit and swidth were also set
> > automatically by mkfs this time.
> 
> Then retry mounting the old fs with sunit= and swidth= parameters. Are 
> they on the same disks? What are your disks (number, kind)?

Yes its already mounted this way as I mentioned in my original message:
/dev/mapper/vg0-shared on /shared type xfs (rw,noatime,sunit=128,swidth=256)

Both filesystems are on the same MD raid 5 which consists of 3 1 tb WD
Black hard drive.

Thanks,

Norbert




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