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[Bug 988079] Re: Much slower OpenGL frame rates with unityshell loaded, than plain compiz

To: compiz@xxxxxxxxxxxxxxxxxxx
From: Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>
Date: Thu, 07 Jun 2012 09:25:41 -0000
Reply-to: Bug 988079 <988079@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I've now tested my experimental XDamageReport changes and found they
provide no improvement here. But that's with NVIDIA, and they never did
provide much improvement with the NVIDIA driver. Likewise, skipping
damage events in unity itself provides no benefit.

I did make a startling observation though... If you've never opened the
Dash then you will get 10-20% higher frame rates than if you have ever
opened the Dash since logging in. That's huge. But it only accounts for
about half the slowdown I observe with unityshell loaded.

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https://bugs.launchpad.net/bugs/988079

Title:
  Much slower OpenGL frame rates with unityshell loaded, than plain
  compiz

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