Ubuntu
unity package

  1. Bug #988079
  2. Comment #24

Comment 24 for bug 988079

Revision history for this message
Daniel van Vugt (vanvugt) wrote : Re: [nvidia] Dismal compiz performance on HP Z600 with 30" landscape monitor

Kenneth,

I know the problems with glxgears often look like temporal aliasing. However that's unlikely the cause unless glxgears itself reports a frame rate lower than the vertical refresh rate. Temporal aliasing could occur at any frame rate, I know, but that would lead to a slight lack of smoothness. Not an obvious and consistently low frame rate like I believe this bug is about.

FYI, in cases where an application reports higher frame rates than you know you're getting from compiz, it is best to consult the "bench" (Benchmark) plugin from package: compiz-plugins-extra. The bench plugin reports the actual frame rate being achieved (from the composite and opengl plugins). Just remember to change bench's key binding in CCSM because the default Super+F12 apparently does not work.

As I mentioned in comment #19, a bottleneck in compiz' event handling has been found. That may be related and is described in bug 1007299.

I will be doing more testing and debugging with the NVIDIA driver this week. So hope to have more suggestions soon.