Re: problem with smp
Rui Sousa (rsousa@grad.physics.sunysb.edu)
Sun, 27 Jun 1999 16:29:26 -0400
> I have 3 machines I tested on.
>
> 1: dual pII450 running @ 504mhz 256mb ram (using mtrr)
> 2: single p233mmx running @ 262mhz 64mb ram
> 3: dual p233mmx running @ 233mhz 256mb ram (using mtrr)
>
> computer 1 compiles 2.2.10 in ~ 3 minutes
> computer 2 compiles 2.2.10 in ~ 11 minutes
> computer 3 compiles 2.2.10 in > 20 minutes
>
> Anyone know why #3 is 2x slower as #2 (2 is uniproc and 3 is dualproc with
> the same chip)
>
How about disk speed (hdparm -t -T /dev/hd?) ?
Swap space (free)?
Did you modified the Makefile for SMP builds (MAKE=make -j 3)?
Are you sure you have all CPU enabled (cat /proc/cpuinfo)?
Are you running a SMP kernel (cat /proc/version)?
Rui Sousa
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