Paul & Brenda Ahlstedt wrote: > Mikkel L. Ellertson wrote: > >> Paul & Brenda Ahlstedt wrote: >> >> >>> Hi gang, >>> >>> Say, I installed Knoppix on a lower end desktop because it has the >>> ability to turn on DMA hardware acceleration - without it, this >>> particular computer is dead in the water. I have installed my favorite >>> distro on it now (2005 Limited of course) and it is slow - my question >>> is, I have turned off all the KDE animations, prefetching, shading, blah >>> blah blah, but it is still slow. How can I turn on the DMA under >>> Mandrake 2005 to make my old favorite desktop KDE work quicker? It sure >>> does make quite a difference - it has an apparent increase in speed of >>> some 5 or 10 times under Knoppix. >>> >>> Paul >>> >>> >> >> If you are talking about hard drive access, take a look at the >> /etc/sysconfig/harddisks config file. >> >> Mikkel >> >> > I found the file you are talking about, and it says that a number in the > configuration needs to be changed to enable DMA for the hard drive - > problem is, I don't know how to do that and worse, I am a Newbie's > Newbie if you know what I mean. Were this a Gates Box... > > Anyway, could you tell me exactly how to enable the change? > > Many thanks, > > Paul > In the file, find the line:
# USE_DMA=1 Change it to: USE_DMA=1 This will tak affect on the next boot. (It is accessed by /etc/rc.d/rc.sysinit - you can run "hdparm -d1 /dev/hda" to turn on DMA for the first hard drive. You can run "hdparm -d /dev/hda" to see if it is already turned on. If it is, then you don't gain anything by editing the file. You can check most of the setting just by running "hdparm /dev/hda". Mikkel -- Do not meddle in the affairs of dragons, for thou art crunchy and taste good with Ketchup!
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