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Re: [GCC 3.x] Performance testing for QA
- From: dewar at gnat dot com (Robert Dewar)
- To: dewar at gnat dot com, kevina at gnu dot org
- Cc: Peter dot Sasi at t-systems dot co dot hu, aj at suse dot de, gcc at gcc dot gnu dot org,tjw at omnigroup dot com
- Date: Tue, 3 Sep 2002 16:36:16 -0400 (EDT)
- Subject: Re: [GCC 3.x] Performance testing for QA
<<However, encoding/decoding (especially encoding) is one area were speed
really matters. Encoding in real time (with out sacrificing quality) is
still not passable with many codecs except on the newest machines.
Unfortunately, because video work is so computationally extensive significant
portions of the code are often rewritten is assembly to take advantage of
MMX etc instructions that many compilers do not produce normally. This
means that that pure C versions may not exist or if they do they are not
coded optimally.
>>
This is all true.
But what does it have to do with being a good benchmark?
Nothing as far as I can see.