Subject: Re: [linux-audio-user] Ardour - xrun in Atlhon 2.8 !?
From: Alexander Franca (alexander_AT_edem.g12.br)
Date: Fri Sep 10 2004 - 18:53:30 EEST
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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