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SubjectRe: ext3 IO latency measurements (was: Linux 2.6.29)

* Theodore Tso <> wrote:

> On Fri, Mar 27, 2009 at 12:02:40AM +0100, Ingo Molnar wrote:
> > This isnt me streaming gigs of data in and out of the system
> > dirtying 90% of all RAM. This is a trivial workload barely
> > scratching the RAM and CPU capabilities of the system.
> Have you tried with maxcpus set to say, 2? My guess is you won't see
> the problems in that case.

Note, my previous devel box was a single socket quad and it had such
delays all the time as well. Havent tried it on a dual-core. (i dont
have dual-core systems with enough RAM to be able to build a kernel
purely in RAM)


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