RE: Kernel 2.6.3 patch for Intel Compiler 8.0

[Norihiko Mukouyama]

Hi All!!

>I used the patch to compile two identical kernels with gcc 3.3.3 and
>icc 8.0 with oprofile support built in.
>The optimization switches were chosen quite conservative, i.e.
>"-O2 -Ob1", no IPO, and of course: no MMX, SSE, and SSE2 stuff inside
>the kernel (thus disabling Intel's great vectorizer).
>Profiling: lmbench ran ten times but time measurements were taken from
>oprofile (on Pentium 4, GLOBAL_POWER_EVENTS in kernel space only, 
>counter overflow: 3.000).
>Results: 33% of the lmbench procs faster on icc, 66% faster on gcc.

Really???

If it is ture using icc 66% faster than gcc., It is wonderful. 
Could you show us detail data to  lmbench results.

Thanks!!

Norihiko



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