[mythtv-users] Is the GUI slow for everyone or just for me?
mythtv at ultratux.org
Thu May 27 09:00:38 EDT 2004
On Thursday 27 May 2004 04:57, mark wrote:
> On Wednesday 26 May 2004 08:16 pm, Maarten wrote:
> > I don't know if I can help... can you benchmark and compare it to
> > something ? By doing a kernelcompile maybe ?
> I could do that perhaps. A little busy right now. Spring and all.
> Does bonnie++ uncover any
> > obvious weak spots ?
> don't have any benchmarking stuff downloaded. Recommendations?
Not really. Benchmarking is mostly for people who want to brag, and I have no
interest in that. Well, try out the iostat tool I mentioned. Run 'iostat 2'
for an overview of both CPU and disk activity, refreshing evey 2 secs.
BTW: Kernel compiles ARE a good benchmark. It will uncover memory errors (as
a bonus) and it is both CPU and disk intensive. For still more fun, try it
with 'make -j5 ' and see your load go way up. :-)
> Have you overclocked it ?
> Nope, pure stock.
> What does acpi report back
> > as system / CPU temperatures ?
> runs about 47C under full load. BIG solid copper heatsink and 80mm slow
> fan (quiet).
Hey, exact same temp as mine. I use a zalman cooler.
> > You may also want to verify in your BIOS that CPU internal caches are ON.
> All caches are on.
> > And of course, the obvious -but you checked that I hope- hdparm DMA mode.
> hdparm showed about 47Mb/sec. Decent.
Instead of only setting DMA mode with -d, maybe check these four settings:
multcount = 16 (on)
IO_support = 1 (32-bit)
unmaskirq = 1 (on)
using_dma = 1 (on)
They all help. DISCLAIMER: read the manpage since some of these settings may
corrupt data if you are very unlucky and have a problematic chipset...!
(You have been warned)
> > For more technically inclined people, it may be insightful to run iostat
> > or other tools from the sysstat suite to see where exactly the bottleneck
> > is.
> Not familiar with that tool.
Simple. Start by just running iostat <number>
> > Failing all that, if you remind me in a couple weeks (too busy now) we
> > can directly compare my system to yours. Mine is an athlon 2600+, VIA
> > KT600, 256MB, kernel 2.4 running Myth 0.14, so it is more or less
> > comparable to yours (except RAM). It has no slowness and encodes straight
> > to mpeg4 with many CPU cycles to spare (resolution 480x480 @ bitrate
> > 3000).
> I was using slightly higher encode settings. 544x480, 4000bitrate. Real
> nice clean digital satellite signal.
I have compromised between diskusage and quality, and it needs further
experimenting. But I have worse problems, some of my favorite channels have
severe interference which cannot be solved by tuning... But my TV shows a
fine picture: it must be the TVcard. :-((
Linux: Because rebooting is for adding hardware.
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