[sclug] Where to start troubleshooting machine speed?

Darren Davison darren at davisononline.org
Mon Sep 5 16:08:26 UTC 2005


On Mon, Sep 05, 2005 at 02:44:28PM +0100, Alex Butcher wrote:

> hdparm -c1 -u1 -k1 -d1 /dev/hd? on both machines would result in them being
> configured "optimally". But, as I understand it, if DMA is being used, then
> -u1 and -c1 have no effect, unless DMA gets switched off and the drive
> reverts to PIO mode. Regardless, that hdparm command line is standard on all
> my machines.

*nod

 
> OK, so the graphics chipset will be stealing memory bandwidth from the CPU.
> Run CPU (and compilation) benchmarks in text mode, in that case.

will do 


> Based on what you've told us so far, I'd kinda expect the laptop to be
> faster...

understood.  Thanks for all the help :)

-- 

Darren Davison
Public Key: 0xDD356B0D
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