On Wed, Mar 29, 2006 at 11:16:27PM +0200, Gerd Stolpmann wrote:
> Almost:
>
> iozone -i 0 -i 1 -r 64k -s 5G -e -f /Data/testfile -U /Data
>
> i.e. record size is 64K, and there is a umount/mount between the
> runs. /Data is an ext3 filesystem with 4k block size, on a 20 G
> partition.
>
> > And
On Wed, Mar 29, 2006 at 11:16:27PM +0200, Gerd Stolpmann wrote:
> Almost:
>
> iozone -i 0 -i 1 -r 64k -s 5G -e -f /Data/testfile -U /Data
>
> i.e. record size is 64K, and there is a umount/mount between the
> runs. /Data is an ext3 filesystem with 4k block size, on a 20 G
> partition.
OK, this d
Am Mittwoch, den 29.03.2006, 14:33 -0500 schrieb Jeff Dike:
> On Mon, Mar 27, 2006 at 05:47:31PM +0200, Gerd Stolpmann wrote:
> > I used iozone in various ways. The simplest workload leading to problems
> > was:
> >
> > - Write a 5GB file
> > - Write it again
> > - Read it back
> > - Read it back
On Mon, Mar 27, 2006 at 05:47:31PM +0200, Gerd Stolpmann wrote:
> I used iozone in various ways. The simplest workload leading to problems
> was:
>
> - Write a 5GB file
> - Write it again
> - Read it back
> - Read it back
>
> This benchmark ran fine the first time I started it. When I started it
Am Montag, den 27.03.2006, 10:38 -0500 schrieb Jeff Dike:
> On Sun, Mar 26, 2006 at 08:49:25PM +0200, Gerd Stolpmann wrote:
> > I recently tried to benchmark the new AIO-based ubd driver (including
> > O_DIRECT), and ran into serious problems with filesystems > 4GB. I think
> > I found the problem;
On Sun, Mar 26, 2006 at 08:49:25PM +0200, Gerd Stolpmann wrote:
> I recently tried to benchmark the new AIO-based ubd driver (including
> O_DIRECT), and ran into serious problems with filesystems > 4GB. I think
> I found the problem; two overflows in ubd_kern.c (see patch).
The first bit looks rea
Hi,
I recently tried to benchmark the new AIO-based ubd driver (including
O_DIRECT), and ran into serious problems with filesystems > 4GB. I think
I found the problem; two overflows in ubd_kern.c (see patch).
My test system was 2.6.16 plus all patches from user-mode-linux.sf.net
minus no_cow_odir
