Re: 2.5.52, load and process in D state

Andrew Morton (akpm@digeo.com)
Sat, 21 Dec 2002 15:20:34 -0800


Paolo Ciarrocchi wrote:
>
> Hi all,
> I booted 2.5.52 with the following parmater:
> apm=off mem=32M (not sure about the amount, anyway I can reproduce
> the problem for sure with 32M and 40M)
>
> Then I tried the osdb (www.osdb.org) benchmark with
> 40M of data.
>
> $./bin/osdb-pg --nomulti
>
> the result is that aftwer a few second running top I see the postmaster
> process in D state and a lot if iowait.

What exactly _is_ the issue? The machine is achieving 25% CPU utilisation
in user code, 6-9% in system code. It is doing a lot of I/O, and is
getting work done.
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