>>>>> On Mon, 13 Aug 2001 10:34:46 -0700 (PDT), Wayne Gowcher
>>>>> <wgowcher@yahoo.com> said:
wgowcher> a 23 % reduction in the Floating Point Index benchmark
Current CVS kernel uses FPU emulator unconditionally. If one floating
point intruction causes a 'Unimplemented' exception (denormalized
result, etc.) following floating point instructions are also handle by
FPU emulator (not only the instruction which raise the exception).
I do not know this is really desired behavior, but here is a patch to
change this. If Unimplemented exception had been occured during the
benchmark, aplying this patch may result better performance.
---
Atsushi Nemoto
fpu_emu.patch
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