On Fri, 2005-07-01 at 13:26 +0530, Suparna Bhattacharya wrote:
> Has anyone else noticed major throughput regressions for random
> reads/writes with aio-stress in 2.6.12 ?
> Or have there been any other FS/IO regressions lately ?
>
> On one test system I see a degradation from around 17+ MB/s to
On Fri, 2005-07-01 at 13:26 +0530, Suparna Bhattacharya wrote:
Has anyone else noticed major throughput regressions for random
reads/writes with aio-stress in 2.6.12 ?
Or have there been any other FS/IO regressions lately ?
On one test system I see a degradation from around 17+ MB/s to
On Wed, Jul 06, 2005 at 10:00:56AM +0530, Suparna Bhattacharya wrote:
> Do you see the regression as well, or is it just me ?
Throughput for me on an ICH6 SATA system using O_DIRECT seems to remain
pretty constant across 2.6.11-something-FC3 to 2.6.13-rc2 around 31MB/s.
2.6.11 proper hangs for
On Wed, Jul 06, 2005 at 10:00:56AM +0530, Suparna Bhattacharya wrote:
Do you see the regression as well, or is it just me ?
Throughput for me on an ICH6 SATA system using O_DIRECT seems to remain
pretty constant across 2.6.11-something-FC3 to 2.6.13-rc2 around 31MB/s.
2.6.11 proper hangs for
On Tue, Jul 05, 2005 at 10:00:24AM -0400, Chris Mason wrote:
> On Friday 01 July 2005 03:56, Suparna Bhattacharya wrote:
> > Has anyone else noticed major throughput regressions for random
> > reads/writes with aio-stress in 2.6.12 ?
> > Or have there been any other FS/IO regressions lately ?
> >
On Fri, Jul 01, 2005 at 10:25:55AM -0400, Benjamin LaHaise wrote:
> On Fri, Jul 01, 2005 at 01:26:00PM +0530, Suparna Bhattacharya wrote:
> > On one test system I see a degradation from around 17+ MB/s to 11MB/s
> > for random O_DIRECT AIO (aio-stress -o3 testext3/rwfile5) from 2.6.11
> > to
On Fri, Jul 01, 2005 at 10:25:55AM -0400, Benjamin LaHaise wrote:
On Fri, Jul 01, 2005 at 01:26:00PM +0530, Suparna Bhattacharya wrote:
On one test system I see a degradation from around 17+ MB/s to 11MB/s
for random O_DIRECT AIO (aio-stress -o3 testext3/rwfile5) from 2.6.11
to 2.6.12. It
On Tue, Jul 05, 2005 at 10:00:24AM -0400, Chris Mason wrote:
On Friday 01 July 2005 03:56, Suparna Bhattacharya wrote:
Has anyone else noticed major throughput regressions for random
reads/writes with aio-stress in 2.6.12 ?
Or have there been any other FS/IO regressions lately ?
On one
On Tue, Jul 05, 2005 at 10:00:24AM -0400, Chris Mason wrote:
> If it doesn't regress, I would suspect something in the aio core. My first
> attempts at the context switch reduction patches caused this kind of
> regression. There was too much latency in sending the events up to userland.
AIO
On Friday 01 July 2005 03:56, Suparna Bhattacharya wrote:
> Has anyone else noticed major throughput regressions for random
> reads/writes with aio-stress in 2.6.12 ?
> Or have there been any other FS/IO regressions lately ?
>
> On one test system I see a degradation from around 17+ MB/s to 11MB/s
On Friday 01 July 2005 03:56, Suparna Bhattacharya wrote:
Has anyone else noticed major throughput regressions for random
reads/writes with aio-stress in 2.6.12 ?
Or have there been any other FS/IO regressions lately ?
On one test system I see a degradation from around 17+ MB/s to 11MB/s
for
On Tue, Jul 05, 2005 at 10:00:24AM -0400, Chris Mason wrote:
If it doesn't regress, I would suspect something in the aio core. My first
attempts at the context switch reduction patches caused this kind of
regression. There was too much latency in sending the events up to userland.
AIO will
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