Re: [linux-audio-user] Anyone using multiface+cardbus?

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Subject: Re: [linux-audio-user] Anyone using multiface+cardbus?
From: R Parker (rtp405_AT_yahoo.com)
Date: Sun Mar 23 2003 - 23:34:22 EET


Hi,

I'll run Jesse and Mark's tests late tonight or
tomorrow. Time, time time,

Good stuff,

ron

--- Jesse Chappell <jesse_AT_essej.net> wrote:
>
> On Sun, 23 Mar 2003, R Parker wrote:
>
> > What do you make of my IRQs, they're not
> consistent
> > with what you're describing. Is this some newer
> bios
> > aipc feature?
> >
> > The pci cards begin at 16 with two scsi controlers
> > sharing interupt 16, at 18 we see a third scsi
> > controler that isn't the same as the one on 16.
> It's
> > just the same driver.
>
> Ron, my dual mobo (asus a7m266-d) (amd-762 chipset)
> also uses this IRQ system. As
> discussed before I thought I had tamed latency
> problems, but
> indeed I have not. When I run this command while
> 'jackd -R' is
> running (and a client is connected) I get massive
> overruns on
> the order of 1-2 *seconds* every 5 seconds or so:
>
> dd if=/dev/zero of=/path/for/bigfile bs=1000
> count=1000000
>
>
>
> This will write a one gig file as fast as possible.
> My IDE
> drives are tuned properly with hdparm and I'm using
> SMP
> 2.4.20 + LL + preemp + radeonDRM. Also tried with
> 2.4.18 + LL.
>
> $ cat /proc/interrupts
> CPU0 CPU1
> 0: 59143 60400 IO-APIC-edge timer
> 1: 1948 2013 IO-APIC-edge keyboard
> 2: 0 0 XT-PIC cascade
> 8: 1 1 IO-APIC-edge rtc
> 9: 0 0 IO-APIC-edge acpi
> 12: 12170 12203 IO-APIC-edge PS/2
> Mouse
> 14: 12232 12459 IO-APIC-edge ide0
> 15: 52 159 IO-APIC-edge ide1
> 18: 0 0 IO-APIC-level Ensoniq
> AudioPCI
> 19: 6613 6657 IO-APIC-level eth0
> NMI: 0 0
> LOC: 119459 119465
>
> (my AGP radeon7500 is on IRQ 16.. not shown above
> for some
> reason).
> Although my BIOS allows me to specify IRQs for
> slots, the numbers
> there match the traditional style... not this >16
> stuff. I tried
> anyway, but no change in linux.
>
> I just tried this test on another system, this one
> UP 2.4.20 +
> LL, similar results. Anyone else care to try this
> informal
> disk-loading test? If you have >= 1G of memory,
> use a
> count=2000000 (2GB file).
>
> jlc
>
>
>
>

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