[mythtv-users] mythTV, Kaffeine and Twinhan DVB-T
Dave
lists at netsalve.com
Wed Mar 15 11:09:34 UTC 2006
I don't know if this is any help, I have two DVB-T Cards in my Myth backend,
being fed off the same aerial in the loft, via a splitter.
1. Avermedia DVB-T - this has a 99% Signal Strength
2. Twinhan DVB-T - this, even with a signal booster, only manages to get 33%
Signal Strength. I very often get signal breakups on this card when watching
live tv on the (seperate) frontend. The signal breakups do not seem to be
quite so bad when watching recorded programs from this card.
I have been tempted to replace the card with another Avermedia.
Regards,
Dave.
On Wednesday 15 March 2006 10:39, Nicklas Bergfeldt wrote:
> Nick Crabtree wrote:
> > To see whether buffering is the issue, you could try activating laptop
> > mode, which groups disk write activity into "chunks" that are spaced
> > at larger intervals than they normally would be. Although this is
> > intended as a power saving idea to let a laptop's hard drive spin
> > down, it would in this case check whether the 30second interval jumps
> > are due to disk cache flushes. emerge laptop-mode-tools to install it,
> > and run /usr/sbin/laptop_mode start to start it.
>
> I tried that and it did not have any effect :-(
>
> > Of course, if you are running other stuff and don't have the free RAM
> > for more than 30 seconds of TV then you will still get disk activity
> > and laptop mode won't help. But on a quiet system (no web browser or
> > email client running, for example) then you should have plenty of
> > spare RAM for this.
>
> That should not be any problem since this computer is solely used for
> mythTV...
>
> > You might also want to try benchmarking using interbench
> > members.optusnet.com.au/ckolivas/
> > <http://members.optusnet.com.au/ckolivas/>*interbench*/
>
> Would this indicate that I need faster hardware, or is it enough for
> mythTV?
>
> Sky /usr/src/interbench/interbench-0.30 > make
> gcc -W -Wall -g -O2 -s -pipe -c -o interbench.o interbench.c
> interbench.c:1404:18: warning: unknown escape sequence '\]'
> gcc -W -Wall -g -O2 -s -pipe -c -o hackbench.o hackbench.c
> gcc -lrt -lm interbench.o hackbench.o -o interbench
> Sky /usr/src/interbench/interbench-0.30 > ./interbench
> loops_per_ms unknown; benchmarking...
> 514666 loops_per_ms saved to file interbench.loops_per_ms
> Creating file for read load...
>
> Using 514666 loops per ms, running every load for 30 seconds
> Benchmarking kernel 2.6.15-gentoo-r1 at datestamp 200603151111
>
> --- Benchmarking simulated cpu of Audio in the presence of simulated ---
> Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
> None 0.007 +/- 0.0153 0.218 100 100
> Video 0.153 +/- 0.264 0.517 100 100
> X 1.42 +/- 3.15 12 100 100
> Burn 0.005 +/- 0.00633 0.016 100 100
> Write 0.033 +/- 0.178 4.02 100 100
> Read 0.024 +/- 0.025 0.071 100 100
> Compile 0.053 +/- 0.364 8 100 100
> Memload 0.128 +/- 0.705 8.01 100 100
>
> --- Benchmarking simulated cpu of Video in the presence of simulated ---
> Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
> None 0.005 +/- 0.00574 0.023 100 100
> X 4.15 +/- 9.3 33.3 99.1 83.4
> Burn 0.006 +/- 0.0123 0.127 100 100
> Write 0.028 +/- 0.186 5.75 100 100
> Read 0.023 +/- 0.0281 0.22 100 100
> Compile 0.036 +/- 0.491 20.7 100 99.9
> Memload 0.091 +/- 0.87 24.7 100 99.8
>
> --- Benchmarking simulated cpu of X in the presence of simulated ---
> Load Latency +/- SD (ms) Max Latency % Desired CPU % Deadlines Met
> None 0 +/- 0.00283 0.032 100 100
> Video 0.003 +/- 0.0386 0.476 100 100
> Burn 0 +/- 0.000872 0.012 100 100
> Write 0.214 +/- 1.21 10 93.8 92
> Read 0.036 +/- 0.42 6 99.3 98.7
> Compile 0.202 +/- 1.04 8 96.2 93.3
> Memload 0.149 +/- 0.983 10 92.1 90.7
>
> --- Benchmarking simulated cpu of Gaming in the presence of simulated ---
> Load Latency +/- SD (ms) Max Latency % Desired CPU
> None 0.001 +/- 0.0216 0.354 100
> Video 0.008 +/- 0.157 2.94 100
> X 12.9 +/- 31.3 208 88.6
> Burn 195 +/- 269 367 33.9
> Write 33.7 +/- 99.2 818 74.8
> Read 6.27 +/- 6.71 10.3 94.1
> Compile 326 +/- 395 570 23.5
> Memload 15.7 +/- 33.7 191 86.4
>
>
> Sky /usr/src/interbench/interbench-0.30 >
>
>
> /Nicklas
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
More information about the mythtv-users
mailing list