Re: synctest results on xfs/ext3(htree) on 2.6.5-rc3-mm4

[Yusuf Goolamabbas <yusufg@xxxxxxxxxxxx>]

> Did you use default mkfs parameters on xfs? Try upping the log size:
> 
>    mkfs -t xfs -f -l size=32768b .....
> 
> Also try
> 
>    mount -o logbufs=8 ....
> The multiple test dirs will make xfs spread out all over the disk,
> not sure how ext3 will place them.  Probably seek heaven, what
> does the disk sound like on ext3, it chatters a lot for xfs.

Big difference

With your mkfs settings and mount options, the same synctest finishes in

real 97.64 user 2.20 sys 30.19

That's close to a 10x difference from the original numbers

Can't tell you about disk noise now, doing the test remotely. I'll try
to listen in on Monday