[mythtv] Poll: System Requirements

Harondel J. Sibble mythtv-dev@snowman.net
Thu, 14 Nov 2002 12:08:29 -0800


On 13 Nov 2002 at 8:00, Robert Kulagowski wrote:

I have an AMD XP1800+ on an Epox KT133A (8kTA3Pro) motherboard, currently 
with only a single capture board.  I use RTJPEG at 640x480 and the default 
settings for encoder (mythtv 7). My capture drive is Ext2.
I have 2 drives, a Seagate 20gb 7200rpm(system) and a Western Digital 40gb 
7200rpm.  The WD is strictly for mythtv capture use.

This is a 20gb Seagate Barraudda IV - 7200rpm

/dev/hda:
 Timing buffer-cache reads:   128 MB in  0.69 seconds =185.51 MB/sec
 Timing buffered disk reads:  64 MB in  1.70 seconds = 37.65 MB/sec
[root@marcus root]# hdparm -tT /dev/hdb

This is a 40gb Western Digital - 7200rpm

/dev/hdb:
 Timing buffer-cache reads:   128 MB in  0.68 seconds =188.24 MB/sec
 Timing buffered disk reads:  64 MB in  1.41 seconds = 45.39 MB/sec

> My system can / cannot view live TV without glitches.
Ehh, for the most part that's true. Some recorded shows seem to stutter on 
startup during playback. Otherwise pretty good playback. Switching to Mpeg4 
otoh, results in less that 30fps, it looks jerky almost like every 5 or 6th 
frame is missing.  Also a recorded show seems to play back at 1.5-2x (again 
likely due to missing frames)

> CPU
> a) When you are recording without watching anything  
dunno yet
> b) When viewing TV ?
you mean different from item D below? ie you start to watch a recording after 
it's already started? no answer on this one atm

> c) When viewing a recorded show ? 
approx 21%

> d) When recording and watching the show at the same time ? 
standard  live tv results in 80-90%


-- 
Harondel J. Sibble 
Sibble Computer Consulting
Creating solutions for the small business and home computer user.
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