[Linux-ia64] Re: strange performance behaviour with floats

From: David Mosberger <davidm_at_napali.hpl.hp.com>
Date: 2003-02-24 12:50:41
>>>>> On Mon, 24 Feb 2003 12:45:10 +1100, Keith Owens <kaos@sgi.com> said:

  Keith> generated a two bundle loop as you suggested, but BogoMIPS went down,
  Keith> not up.

Note: 2 bundle != 2 cycle, but even ignoring that: what did you
expect?  BogoMIPS counts 2 instructions per loop iteration no matter
how many instructions are being executed.  Perhaps you can get the
compiler to unroll the loop.  Then you'd see a higher BogoMIPS.

	--david
Received on Sun Feb 23 17:52:33 2003

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