Dave Jones wrote:
> On Tue, Nov 19, 2002 at 08:41:26PM -0500, Mathias Kretschmer wrote:
> > I just patched my 2.4.20rc2 kernel. Now, it reports
> > 512K cache for my 2 Tualatin 1.26 GHz CPUs.
> >
> > 'time make -j4 bzImage' went down from 3:30 to 3:04.
> > Not too bad.
>
> That is quite an impressive gain. The patch I sent Marcelo which
> also fixes up a problem with some tualatins and adds P4 trace cache
> support is at..
>
> ftp.kernel.org/pub/linux/kernel/people/davej/patches/2.4/2.4.20/descriptors.diff
>
> As you have tualatins can you try with the above patch and make sure
> theres no regressions there ?
Hi Dave,
Here are the results. I've upgraded to gcc-3.2.1 yesterday evening.
Hence, we can not compare to the results from yesterday.
The ones below are new:
2.4.20rc2+small-patch (ran it three times with very similar results):
265.05user 16.66system 2:43.09elapsed 172%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (621129major+1391627minor)pagefaults 0swaps
2.4.20rc2-descriptors.diff (also run three times):
302.60user 16.95system 2:43.39elapsed 195%CPU (0avgtext+0avgdata
0maxresident)k
0inputs+0outputs (621129major+1390848minor)pagefaults 0swaps
Pretty much the same result - within the tolerance.
%CPU is up quite a bit.
Also, my optimization options are '-Os -march=pentium3'.
The machine was idle but still in multi-user mode. If
you need more precise results, I could do that over the weekend.
Cheers,
Mathias
---> cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 11 model name : Intel(R) Pentium(R) III CPU family 1266MHz stepping : 1 cpu MHz : 1280.932 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 2555.90
processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 11 model name : Intel(R) Pentium(R) III CPU family 1266MHz stepping : 1 cpu MHz : 1280.932 cache size : 512 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 2555.90
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