[linux-audio-dev] Re: [Jackit-devel] Re: k_jack v0.0.0.5

Robert Jonsson robert.jonsson at dataductus.se
Wed Jan 22 12:19:00 UTC 2003


Steve Harris wrote:

>On Wed, Jan 22, 2003 at 03:57:40 +0100, Robert Jonsson wrote:
>  
>
>>What I have noticed is subtle, I have xruns in both situations but the 
>>rate increases noticeably.
>>I've been running patched kernels but there are all kinds of parameters 
>>(as I'm sure you know) to tweak before it is sufficiently solid.
>>I would consider my findings pretty much expected behaviour with a less 
>>then perfectly tuned system.
>>
>>The real problem is that it's so very very hard to tune a system 
>>sufficiently without hours and hours of work. It would be very nice if 
>>there was some way to automate, atleast parts of, the process.
>>    
>>
>
>I didn't have to put any real effort in on my PC (RH8, ide, athlon),
>I just installed a patched kernel from Planet CCRMA and rebooted.
>
>I get xruns at 64 samples/period (and 128 with heavy disk load), but I
>think that's a problem with the ext3 filesystem - others have reported this
>too. I'm happy at 256 so I haven't bothered remounting the partition to
>find out.
>
>JACK/no JACK makes no noticable difference to the xruns.
>
Well, as I asked David, care to describe your setup that provides such 
wonderful performance?

/Robert





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