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

David Mosberger
2003-02-24T01:50:41Z

>>>>> 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