[linux-audio-user] Ardour - xrun in Atlhon 2.8 !?

Alexander Franca alexander at edem.g12.br
Fri Sep 10 11:53:30 EDT 2004


Recording:
---------------------------------------------------------------------
/dev/hda:
  Timing buffer-cache reads:   820 MB in  2.01 seconds = 408.43 MB/sec
  Timing buffered disk reads:   10 MB in  3.38 seconds =   2.96 MB/sec

Without Record:
---------------------------------------------------------------------
/dev/hda:
  Timing buffer-cache reads:   852 MB in  2.01 seconds = 423.94 MB/sec
  Timing buffered disk reads:    8 MB in  3.00 seconds =   2.66 MB/sec

Recording again:
---------------------------------------------------------------------
/dev/hda:
  Timing buffer-cache reads:   812 MB in  2.00 seconds = 405.25 MB/sec
  Timing buffered disk reads:   10 MB in  3.66 seconds =   2.74 MB/sec

Runing Jack
---------------------------------------------------------------------
/dev/hda:
  Timing buffer-cache reads:   1028 MB in  2.00 seconds = 512.80 MB/sec
  Timing buffered disk reads:   10 MB in  3.26 seconds =   3.07 MB/sec


Thats it?

[]'s
Alexander


> Alexander Franca wrote:
>> 
>> Good questions :)
>> 
>> Sound card is one VIA 8233. Ok, it's a very bad and ugly soundcard, but is 
>> just for test. In next week that machine will have one SB Audigy 
>> Platinium.
>> 
>> I start jack with:
>> 
>> jackd -v -R -d alsa -d hw:0 -r 44100 -p 2048
>> 
>> But I tried othes options and continue with xruns.
>> 
>> I think my hdparm can't get this DMA information.
>> 
>> I'm getting the source code of hdparm to find some option in compilation.
>> 
>> Your suggestion send to me:
>> 
>> /dev/dsp not supported by hdparm
>
> Sorry - I was misunderstood.
>
> First, just type mount and look at your mounted drives.
>
> hdparm -tT /dev/hda
> hdparm -tT /dev/hdc
>
> Use whatever drive you are recording or playing audio from.



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