Hi, I'll run Jesse and Mark's tests late tonight or tomorrow. Time, time time, Good stuff, ron --- Jesse Chappell <jesse@xxxxxxxxx> 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 > > > > __________________________________________________ Do you Yahoo!? Yahoo! Platinum - Watch CBS' NCAA March Madness, live on your desktop! http://platinum.yahoo.com
