[TriLUG] cdrecord & cpu usage

[David A. Cafaro]

Unless you are running really old equipment (more than 3 years) or very
little RAM this shouldn't be an issue.  Have you checked Eclipt to see
what kind of usage that is running.  Also you may want to use hdparm to
check that DMA is turned on for your HD and CDburner as well as 32 bit
mode.  We careful when playing with hdparm, cause not all hd supports
all modes.  Something to try might be

# /sbin/hdparm -c3 -d1 /dev/hda  (first HD)
# /sbin/hdparm -c3 -d1 /dev/hdc  (first IDE Cdrom)

Which turns on basic 32bit and DMA.  Again, use with caution and be
prepared for it to fail (I've tried some very aggresive settings that
locked my HDs good, had to hard reset and recover journal).

-David


On Tue, 2003-04-22 at 10:00, zzd wrote:
> When burning ISO images to cdrom, I find that I am totally unable to do 
> anything else during the burn process, including move the mouse or 
> change to alternate windows. I like to use Eclipt which is a good GUI 
> front end to cdrecord, and when I use the top command, it shows 
> cdrecord at over 40% cpu.
> 
> So, how do I (re)nice the cdrecord command to use less CPU, so that I am 
> at least able to read/write emails while at the same time, burning a 
> CDROM? I tried "nice --adjustment=10", but this did me no good. The 
> whole nice thing is a bit confusing. Any help/direction appreciated.
> 
> z
> 
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