linux-kernel - Re: -rt doesn't compile for UML

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Date:	Wed, 28 Nov 2007 19:46:01 +0100
From:	Miklos Szeredi <miklos@...redi.hu>
To:	jdike@...toit.com
CC:	mingo@...e.hu, user-mode-linux-devel@...ts.sourceforge.net,
	linux-kernel@...r.kernel.org
Subject: Re: -rt doesn't compile for UML

> > Something like:
> > 
> >   dd if=/host/tmp/bigfile of=/tmp/bigfile bs=1048576 count=100
> > 
> > and run 'top' or 'watch something' in another terminal, which
> > sometimes completely stops updating during the write.
> 
> Are you talking about missing updates for a few seconds, or for
> longer?  With the common above, with top -delay 1, and with 600M of
> data, I'm seeing occasional 2-3 pauses, with one missing 5 seconds.

Yes, that sort of thing.  Sometimes it pauses soon after starting the
dd, and never recovers till it's finished, but that is not easily
reproducible.

Miklos
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