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

R Parker rtp405 at yahoo.com
Sun Mar 23 16:44:00 EST 2003


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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