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[Bug 1049214] Re: [nvidia] XSync usage is a massive bottlenecking factor (nvidia performance regression in Compiz 0.9.8+)

To: compiz@xxxxxxxxxxxxxxxxxxx
From: Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>
Date: Wed, 28 Nov 2012 06:32:03 -0000
Reply-to: Bug 1049214 <1049214@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

Sean,

It's just a matter of application frame rates and the CPU consumption
that compiz incurs (in compiz and Xorg processes). So on the Nexus maybe
use glmark2-es and es2gears to look at frame rates.

A test for disabling XSync completely (which will cause bugs but be a
great performance comparison) would be to write a stub XSync function
and LD_PRELOAD it into compiz. I will try to do that soon.

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https://bugs.launchpad.net/bugs/1049214

Title:
  [nvidia] XSync usage is a massive bottlenecking factor (nvidia
  performance regression in Compiz 0.9.8+)

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