Re: xfs: very slow after mount, very slow at umount

From: Mark Lord
Date: Thu Jan 27 2011 - 20:00:00 EST

On 11-01-27 06:41 PM, Dave Chinner wrote:
> On Thu, Jan 27, 2011 at 10:12:23AM -0500, Mark Lord wrote:
>> Can you recommend a good set of mkfs.xfs parameters to suit the characteristics
>> of this system?

That entry says little beyond "blindly trust the defaults".
But thanks anyway (really).

> And perhaps you want to consider the allocsize mount option, though
> that shouldn't be necessary for 2.6.38+...

That's a good tip, thanks.
>From my earlier posting:

> /dev/sdb1 on /var/lib/mythtv type xfs
> (rw,noatime,allocsize=64M,logbufs=8,largeio)

Maybe that allocsize value could be increased though.
Perhaps something on the order of 256MB might do it.

Thanks again!
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at