Re: Celeron doesn't reach proper BogoMIPS

B.W. McAdams (brendan@plexmedia.com)
Fri, 27 Aug 1999 11:58:16 -0400


Aren't laptops notorious for significant performance decreasements when on
battery power?
Could that be the explanation?

On Fri, 27 Aug 1999, Wolfram-Peter Stilz wrote:
Hi Kernel-Mailing-List

I habe a Notebook 'Fujitsu Liteline Celeron 400 DVD' on which
I can't get the BogoMIPS which a Celeron 400 Processor should have
according to the BOGOMIPS-HOWTO.

According to the Howto it should get around 400 Bogomips, but (see below)
it ist getting only around 98. The whole System also seems to be somewhat
slow; compiling a kernel takes on this machine half an hour.

I'm using Kernel 2.2.12 optimized for PPRO/6x86MX on a Suse 6.1 system,
but I also tried other Kernel versions and optimisation for Pentium and
586.
mtrr is enabled, multi-processing is disabled.

In the Bios-setup-utility I'm having L1 and L2 cache enabled.

I'm no expert, but I tried around a bit and I'm always getting the same
results.

Does anybody have an idea what could be the reason for this? What
settings could be wrong? Is it a hardware-bug? Or how could I find
out what's wrong?

cheers
Peter

--------- /proc/cpuinfo ---------

processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 6
model name : Celeron (Mendocino)
stepping : 5
cpu MHz : 398.711756
cache size : 128 KB
fdiv_bug : no
hlt_bug : no
sep_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 sep mtrr pge mca cmov pat pse36 mmx osfxsr
bogomips : 97.89

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-- 
Brendan W. McAdams                   | H: (305)859-2181        
Programmer/Systems Administrator  | W: (305)377-2880 
Plexus InterActive                  	  | email:brendan@plexmedia.com 
http://www.plexmedia.com

"Always listen to experts. They'll tell you what can't be done, and why. Then do it. " -- Robert A. Heinlein

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