Messages in this thread | | | From | Al Boldi <> | Subject | Re: Where is the performance bottleneck? | Date | Wed, 31 Aug 2005 07:30:38 -0300 |
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Holger Kiehl wrote: > On Mon, 29 Aug 2005, Al Boldi wrote: > > You may be hitting a 2.6 kernel bug, which has something to do with > > readahead, ask Jens Axboe about it! (see "[git patches] IDE update" > > thread) Sadly, 2.6.13 did not fix it either. > > I did read that threat, but due to my limited understanding about kernel > code, don't see the relation to my problem.
Basically the kernel is loosing CPU cycles while accessing bockdevices. The problem shows most when the CPU/DISK ratio is low. Throwing more CPU cycles at the problem may seemingly remove this bottleneck.
> But I am willing to try any patches to solve the problem.
No patches yet.
> > Did you try 2.4.31? > > No. Will give this a try if the problem is not found.
Keep us posted!
-- Al - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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