[Ardour-Users] disk not able to keep up with ardour...

sara lidgey slidgey at yahoo.ca
Wed Oct 24 16:48:58 PDT 2007

Hi All, 

Thanks for asking...  I've compiled all the questions and answered them below.

>have you done lots of overdubs in the same track? i.e. regions are
 >stacked on top of each other many times?

Tons of overdubs but no regions are stacked up on the same track and I regularly cleanup unused sources and flush the wastebasket

>What do you mean by "10 tracks ever played at once"?  Is there only
 >audio regions on 10 of the tracks?  Are the tracks mono or stereo?

The tracks are mono.
Most of the time (at this stage of production) 54 channels are muted.

>What filesystem, and how much space is left on the partition?  
>Just post the output from mount and df (and note where the session is).

df -h:
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              29G  5.8G   22G  22% /
/dev/sda5             419G  141G  257G  36% /home
/dev/sda1              99M   45M   50M  48% /boot
tmpfs                 997M     0  997M   0% /dev/shm

OS is on /   (obviously)
The Ardour session is on /home 

>What's the sample rate? If it's 92kHz there's no chance of a single
 >disk keeping up with 64 tracks. At 48kHz it should be just about

I forgot to mention that.  The sample rate is 96kHz

>Back when I was facing this issue someone on this list suggested that 
 >I could deactivate some of my tracks, which keeps them in the project 
>but doesn't read them during playback.  That completely solved my 
 >problem, and could very likely solve yours since you only want 10 
 >tracks at once.

Thanks.  That sounds like a good idea at this stage... but I will at some point  want to play all the tracks.

>run bonnie - make sure your work files exceed available RAM (to avoid
 >caching affecting the outcome)

Version  1.03       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
mymachine           4000M 50185  92 59996  19 30507   7 57658  89 70586   7 189.3   1
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++

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