[7352] in Release_7.7_team
Re: Update retrospective
daemon@ATHENA.MIT.EDU (Geoffrey Thomas)
Wed Feb 23 13:25:02 2011
Date: Wed, 23 Feb 2011 13:24:55 -0500 (EST)
From: Geoffrey Thomas <geofft@MIT.EDU>
To: Jonathan Reed <jdreed@mit.edu>
cc: "release-team@MIT.EDU Release Team" <release-team@mit.edu>
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Message-ID: <alpine.DEB.1.10.1102231322050.23981@lunatique.mit.edu>
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On Wed, 23 Feb 2011, Jonathan Reed wrote:
> - A prof prepping for class in 3-133 told me they always power off the
> workstation, because it makes loud noises in the middle of lecture.
> Further discussion revealed that this was the stupid jet-engine noise
> the Optiplexes make when you use too much CPU. Like, say, installing
> debathena-tex-config. It's possible we should consider a different
> update schedule for the lectern machines.
Sure, not updating those during business hours at all is pretty
reasonable. The other option is to limit its CPU usage somehow.
I think we can do things involving CPU frequency scaling controls to tell
it not to leave the conservative-power-use state while being updated. I
also see this thing http://cpulimit.sourceforge.net/ which appears to work
by sending a process lots of STOP and CONT signals very quickly. I'm ... a
bit worried by that implementation.
--
Geoffrey Thomas
geofft@mit.edu
