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IDProjectCategoryView StatusLast Update
0001667ardourbugspublic2010-05-02 18:47
Reporterkristian Assigned To 
PrioritynormalSeveritytweakReproducibilityalways
Status newResolutionopen 
Product Version2.0 
Summary0001667: Generic MIDI Control surface consumes too much CPU
DescriptionSince upgrading to ardour 2.0.2 (from 2.0-rc1), I've noticed a significant increase in CPU consumption, even when ardour is "idle" (i.e. not playing or recording anything), and on my heaviest projects this now causes ardour to stop playback/recording every 0000009:0000005-10 seconds. ("The disk system on your computer was not able to keep up..."

By disabling the "Generic MIDI" Control Surface (Options->Control Surfaces->Generic MIDI), the CPU usage drops down slightly to a more manageable level again, and I do not experience the frequent dropouts anymore.


Optimally, turning this (idle) surface on/off should have no effect on CPU consumption at all, so obviously there should be some room for optimization there.
Additional Informationjack setup:
  96kHz
  buffersize: 256 * 4

The project I'm having problems with:
  24 tracks, 6 buses
  0000014:0000008 LADSPA plugins

AMD Athlon 2GHz, 1Gb RAM

Ardour2 updated and compiled from 2.0-ongoing branch today (2007.05.11).
Tagssurfaces

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Issue History

Date Modified Username Field Change
2007-05-11 23:18 kristian New Issue
2010-05-02 18:47 cth103 Tag Attached: surfaces