[PD] harddisc activity blocks sound playback

[Miller Puckette]

Hi all,

I don't understand why 64 sample buffers should be a problem for RME
since you should be able to use many buffers ("fragments") to set
the latency to a reasonable value.  But perhaps I'm mising something...

cheers
Miller

On Thu, Sep 13, 2001 at 02:35:45PM +0200, guenter geiger wrote:
> 
> 
> On Thu, 13 Sep 2001, IOhannes m zmoelnig wrote:
> > this should definitely rock !
> > note, that i do not remember having problems with a rme-9652 and
> > kernel-2.4.3 (or something),
> > although i had to compile the kernel myself then.
> > i am sure, that i could play-bac 2 files at least.
> > 
> > which soundfile-player do you use ?
> > under linux i definitely suggest using miller's "readsf" instead of
> > zexy's "sfplay~" !!
> > could this be the problem ?
> 
> I don't think so.
> I'm not sure if the pd-0.34 has the same thing, but the buffersize for
> the RME is changed to use 64 samples (the smallest buffer you can get
> for the rme), no matter what buffersize you request.
> 
> Linux without the low latency patches isn't suited for this short buffers
> when doing harddisk I/O.
> 
> Even with lowlatency you are living on the edge with this setting.
> 
> The only way I found to change this was editting s_linux.c
> 
> Guenter
> 
>