[mythtv-users] system profiling / cpu usage revisited
mOjO
mojospam at thegeekclub.net
Thu Jun 19 23:39:20 EDT 2003
i compiled it with -march=athlon-xp cant say it helped any.. but it
didnt seem to hurt.
GCC version 3.2
Gregorio Gervasio Jr. wrote:
>>>>>>On Thu, 19 Jun 2003 16:06:01 -0500, Brian Lalor <blalor at bravo5.org> said:
>
>
> b> Ok, I've been doing some poking around with iostat and vmstat. I
> b> changed my settings so that I'm now doing MPEG-4 encoding (exact
> b> params not important ATM). My CPU's at ~100% most of the time that
>
> Maybe it is important -- are you sure you haven't enabled the
> HQ and 4MV options? Last time I checked, the first one bumped up CPU
> usage on my Athlon 2500XP+ from 15-20% to 40-50%. The second one
> pretty much maxes out the system. This is with LiveTV MPEG-4
> @480x480. Also, other people have reported strange results when using
> non-standard values for min/max quality.
>
> Are you sure you didn't accidentally compile for debug? Did
> you do anything different when you ran "./configure"? That's actually
> the critical one since it sets up the libavcodec build. From what
> I've seen, there's not much to be gained by using "-march=athlon"
> anyway so you could just stick with the default compiler options.
>
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