Messages in this thread |  | | | Date | Tue, 18 Dec 2001 16:51:45 +0100 (CET) | | From | Martin Josefsson <> | | Subject | Re: Scheduler ( was: Just a second ) ... |
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On Mon, 17 Dec 2001, Linus Torvalds wrote:
> > On Mon, 17 Dec 2001, William Lee Irwin III wrote: > > > > 5: 46490271 XT-PIC soundblaster > > > > Approximately 4 times more often than the timer interrupt. > > That's not nice...
0: 24867181 XT-PIC timer 5: 9070614 XT-PIC soundblaster
After I bootup I start X and then xmms and then my system plays mp3's almost all the time.
> > > Which sound driver are you using, just in case this _is_ the reason? > > > > SoundBlaster 16
I have an old ISA SoundBlaster 16
> Raising that min_fragment thing from 5 to 10 would make the minimum DMA > buffer go from 32 bytes to 1kB, which is a _lot_ more reasonable (what, > at 2*2 bytes per sample and 44kHz would mean that a 1kB DMA buffer empties > in less than 1/100th of a second, but at least it should be < 200 irqs/sec > rather than >400).
After watchning /proc/interrupts with 30 second intervals I see that I only get 43 interrupts/second when playing 16bit 44.1kHz stereo.
And according to vmstat I have 153-158 interrupts/second in total (it's probably the networktraffic that increases it a little above 143).
/Martin
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