Messages in this thread | | | Subject | Re: 2.1.111: IDE DMA disabled...BLAH...BLAH... | Date | Thu, 30 Jul 1998 00:25:08 -0400 | From | Shannon <> |
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In message <m3vhogs15p.fsf@k6.jhcloos.com>, "James H. Cloos Jr." writes:
> Linus> Another difference is that > Linus> we react to interrupts a lot faster under SMP. > > Perhaps, since the problem seems dependent on both DMA and SMP, the > real differnece is IO-APIC vs XT-PIC?
I think what we are finding out in the 2.1 kernel is just how bad the quality of PeeCee hardware is. I have know that all along, but I think the problems in 2.1 are often the hardware's fault.
A lot of commercial OS offerings are tuned ``slow'' for this reason. Its not always because they suck... :)
The hardware is often incredibly marginal and rarely is a PeeCee motherboard within specifications all around. I often marvel that Linux or any other OS runs as well as they do.
Since PCI and PlugNPlay... I have yet to setup a PeeCee where any one is not night and day different from another. Setting them up is a black art.
-- csh - shendrix@widomaker.com - Dilbert is one of my coworkers... ---------------------------------------------------------------------- "Those who trade liberty for security will have neither -- B.F."
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