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 1
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 2.6.12
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 wi
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
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