On 5/8/11 2:22 PM, Knut Petersen wrote:
Software
=======
1.86 MHz system:
opensuse 11.2
X.Org X Server 1.6.5
Release Date: 2009-10-11
kernel 2.6.38.5
2.00 MHz system:
opensuse 11.4
X.Org X Server 1.10.99
git-tree, 2011-may-7
kernel 2.6.39-rc4-drm-intel-staging
I'd start by suspecting differences in .config for the kernel between
the two, particularly since...
10000000 trep @ 0.0032 msec (309000.0/sec): Dot
40000000 trep @ 0.0006 msec (1650000.0/sec): Dot
Dot dispatch is so completely CPU-dominated that I suspect you're simply
measuring CPU overhead somewhere else. For example, if one of those
kernels is built with spinlock debugging and the other isn't.
- ajax
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