Messages in this thread | | | From | Adam Schrotenboer <> | Subject | Re: Scheduler ( was: Just a second ) ... | Date | Tue, 18 Dec 2001 09:21:08 -0500 |
| |
On Monday 17 December 2001 23:55, William Lee Irwin III wrote: > On Mon, Dec 17, 2001 at 08:27:18PM -0800, Linus Torvalds wrote: > > The most likely cause is simply waking up after each sound interrupt: you > > also have a _lot_ of time handling interrupts. Quite frankly, web surfing > > and mp3 playing simply shouldn't use any noticeable amounts of CPU. > > I think we have a winner: > /proc/interrupts > ------------------------------------------------ > CPU0 > 0: 17321824 XT-PIC timer > 1: 4 XT-PIC keyboard > 2: 0 XT-PIC cascade > 5: 46490271 XT-PIC soundblaster > 9: 400232 XT-PIC usb-ohci, eth0, eth1 > 11: 939150 XT-PIC aic7xxx, aic7xxx > 14: 13 XT-PIC ide0 > > Approximately 4 times more often than the timer interrupt. > That's not nice...
FWIW, I have an ES1371 based sound card, and mpg123 drives it at 172 interrupts/sec (calculated in procinfo). But that _is_ only when playing. And (my slightly hacked) timidity drives my card w/ only 23(@48kHz sample rate; 21 @ 44.1kHz) interrupts/sec
Is this 172 figure right? (Not through esd either. i almost always turn it off, and sp recompiled mpg123 to use the std OSS driver)
> > On Mon, Dec 17, 2001 at 08:27:18PM -0800, Linus Torvalds wrote: > > Which sound driver are you using, just in case this _is_ the reason? > > SoundBlaster 16 > A change of hardware should help verify this. > > > Cheers, > Bill > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |