[chuck-users] SndBuf causes hickup

Atte André Jensen atte.jensen at gmail.com
Fri Jun 15 01:36:05 EDT 2007

Scott Wheeler wrote:

> Just another friendly, geeeky, explanation of what you're seeing -- when 
> you cat everything to /dev/null, that effectively puts all of those 
> samples into memory.

Yes, I'm aware of that :-)

> However, that's not connected to CPU performance; it's much more 
> connected to hard drive speed and more specifically how the OS 
> prioritizes different operations and how much of the file system 
> information it keeps in memory.

I know that, too. My point is just my system seems fast enought, I can 
do 20+ tracks in ardour (which admittedly knows which samples should be 
played in advance). And my HD is performing ok:

ajstrup:~# hdparm -t /dev/hda4
  Timing buffered disk reads:  122 MB in  3.01 seconds =  40.47 MB/sec

It would be nice if chuck had a way of filling a SndBuf in the 
background, it should be finished when it's ready but should cause no 
hickups, and an a possibly with an ability to check at any given time if 
the reading has been completed.

peace, love & harmony

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