Messages in this thread |  | | Subject | Re: IDE-DVD problems [excuse former idiotic topic] | From | "Joseph N. Hall" <> | Date | Wed, 4 Sep 2002 09:11 -0700 |
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On Wed, 4 Sep 2002 11:49:45 -0400, Benjamin LaHaise <bcrl@redhat.com> wrote: > On Wed, Sep 04, 2002 at 08:48:00AM -0700, Joseph N. Hall wrote: > > * Performance is terrible > > * booting with noapic makes no difference > > * Performance seems to indicate some kind of difficulties in > > the kernel, perhaps connected to interrupt handling > > That's what happens when DMA isn't being used: the kernel spends lots of > time copying data from the drive in the interrupt handler and not allowing > userspace to execute.
Right, but it will work with or without DMA, for some definition of "work." Or it should work, right?
The Sony DVD-ROM performs acceptably w/o DMA (FIC Sabre box w/ 1Ghz Pentium, Intel chipset) although it runs faster and smoother w/ DMA turned on. Same observation w.r.t CD-ROM. The LF-D210 (probably it's a D231, they all identify as D210 I think)
Do you know anyone who has gotten this particular drive to work? Or for that matter if there are any troubles with the KT333 chipset? I wouldn't be surprised if there are some interrupt "issues" with KT333 because my plain old IDE performance was not good under the stock 2.4.18-3 kernel ... it would do some of the same things (lots of system time, temporary "pauses", etc.).
I wouldn't mind a m/b change although most of the good Athlon options are KT333, which probably doesn't solve anything. I *was* going to build a dual box with an S2466 ... maybe I should reconsider doing that.
I am also having problems with the C-Media onboard audio + ALSA (0.9 rc3) ... it hangs the system (totally) after playing for a few seconds. So that is another strike against this particular h/w configuration.
-joseph
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