linux-kernel - scheduling oddity on 2.6.20.3 stock

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Message-ID: <Pine.LNX.4.64.0705021826560.5342@asgard.lang.hm>
Date:	Wed, 2 May 2007 18:31:21 -0700 (PDT)
From:	david@...g.hm
To:	linux-kernel@...r.kernel.org
Subject: scheduling oddity on 2.6.20.3 stock

I needed to recompress some files from .bz2 to .gz so I setup a script to 
do

bunzip2 -c $file.bz2 |gzip -9 >$file.gz

I expected that the two CPU heavy processes would end up on different 
cpu's and spend a little time shuffling data between the two cpu's on a 
system (dual core opteron)

however, instead what I find is that each process is getting 50% of one 
cpu while the other cpu is 97% idle.

David Lang
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