[mythtv-users] Slow/choppy playback problem (not the usual ones,
yanfali at best.com
Sat Oct 16 01:40:34 UTC 2004
Joshua M. Thompson wrote:
>>Also, is the box capable of using IO-APIC on UP ? That will distribute
>>IRQs, maybe something is sharing IRQs that doesn't like sharing. That
>>would require a kernel rebuild.
> As far as I know there is no ioapic on this motherboard. But even IRQ
> problems should not cause such a huge difference in X's CPU usage...myth
> is definitely doing something different than mplayer here. Why else
> would myth make the X server use 10x as much CPU?
Sometimes it's there but disabled by the BIOS. You could try it out if
you have time. I also like to tweak the kernel using -Os by editing the
top level Makefile and replacing all occurences of -O2. Maybe mplayer
has different optimizations by default. Can you rip apart the SRPM and
take a look at it's configure and Makefile ?
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