Jason Henson a �crit :
On 01/20/05 20:57:12, Derek wrote:
Collin McClendon wrote:
I've noticed for quite some time (at least on 5.x even before - CURRENT) that if I'm unzipping or tarring a file that it is enough to make xmms play mp3s with intermittent buzzing. I have a fairly fast machine, dual athlon 1.53 Ghz with 1 GB of ram and a fully scsi setup, 4 10K maxtors in a Raid 0 stripe set.
Did you ever find a solution to this Collin?
I've got a 5.3-STABLE SMP machine, with a promise RAID controller,
RAID1, with snd_emu10k1.ko, and I get the same results... Re- nicing
xmms doesn't help either...
Cheers, Derek
Could this be a problem of resource hoging on the pci bus? Are the devices on different irqs?
I just tried it without problem, but it was a small file. I have a single 2ghz athlon with builtin audio and a single ide drive.
I have this problem too.
It happens with any mp3 player or listening to an icecast stream, but not with mplayer when looking at a divx. I looked at the irqs, and have uhci2 and my pcm0 on the same irq. However, this problems occurs only after 3 or 4 hours of uptime, generally.
Should I try to change my irqs ? and if positive, how do I do this ? in the bios ? (note : I have also uhci1 on the same irq than vr0, and it makes my computer crash at the end of the shutdown, when using the GDM to shutdown)
Something like hw.acpi.pci.link.0.6.0.irq=16 #irq pcm in / boot/loader.conf. Maybe you could also try changing the pci clock, by this I mean the number of tics or cycles a device can control the bus. I have mine set to 96. A number between 96-128 usaully increases performance of some pci devices on bench marks I have. You should search for some of them to see if there is a good setting for your pc.
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