Messages in this thread | | | Date | Fri, 20 Apr 2001 20:30:29 -0400 | From | Disconnect <> | Subject | Re: Athlon problem report summary |
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On Sat, 21 Apr 2001, Alan Cox did have cause to say:
> K7 optimisation basically enabled the MMX copy/clear code which adds 30-40% > performance to those functions. It also materially ups the maximum memory > bandwidth the processor will use which may be where the fun starts.
Not to be slow/dull/etc (I -really- appreciate the help here) but possibly more stupid questions.
Is there anything out there to test/benchmark MMX ops? (Preferably with reporting on MMX and equiv non-MMX ops, tunable memory bandwidth, etc.)
Also, I can try that same kernel w/ memory set to HCLK (pc100) instead of HCLK+33 (pc133). The ram is pc133, but who knows, it might work. (I'm pretty sure I had it at pc100 before with no change, but not positive.)
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