Messages in this thread | | | Date | Thu, 23 Oct 2003 13:35:02 -0700 | From | Dave Olien <> | Subject | Re: [BENCHMARK] I/O regression after 2.6.0-test5 |
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test5 didn't work with dbt2. The database run kept hanging. I've been running reaim, which doesn't have those problems with older kernels, but has shown similar performance problems.
I need to also check again that reaim and dbt2 still show similar performance issues with newer kernel versions.
I've lost my test machine for today. But I'll try test5 as-iosched in a test8 kernel with reaim tomorrow. If it works well, I'll try your following patch. Probably get it in the mail tomorrow afternoon.
Dave
On Thu, Oct 23, 2003 at 12:24:09PM +1000, Nick Piggin wrote: > > > Dave Olien wrote: > > >Sorry, this patch didn't fix our performance problems. Mary just > >finished running dbt2 on test8 with your patch: > > > >NOTPM kernel scheduler > >965 2.6.0-test8-np AS > >1632 2.6.-test6-mm4 deadline > > > > Thanks. hmm. > And NOTPM was better with AS in test5? Does using as-iosched.c from test5 > in a test8 kernel help? > - 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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