Is there a simple way to diagnose Unity performance issues?

Question

The Unity Dash and HUD are slow to open, sometimes freezing the system for up to four seconds when I first hit the Alt or Super keys. Is there a simple way to find out where the time is going?

The folks in #ubuntu-unity advised that I could run valgrind --tool=callgrind compiz --replace to generate a profile of the application, however I want a simpler place from which to start troubleshooting.

1st try clearing off the record history in System Settings --> Privacy. If that doesnot do the trick try disabling the RECORD ACTIVITY at the bottom. I think it might be due to Zeitgeist Datahub — Arin Chakraborty, Dec 20 '12 at 19:00
Try this: http://askubuntu.com/questions/55342/unitys-dash-is-slow-and-taking-couple-of-seconds-until-its-shown — Whitellama, Dec 22 '12 at 17:51
possible duplicate of Why is the dash so unresponsive, and is there a way to fix this? — Eliah Kagan, Jan 12 '13 at 07:39
It could be low memory - the disk grinds if I try to bring up the HUD, Dash, or even the application switcher. But how do I prove or disprove it? — mars, Jan 15 '13 at 20:35

score 0 · Answer 1 · edited Oct 18 '13 at 16:27

0

For me, the HUD was extremely slow when fading in and out. I solved it by installing Compiz Config and doing the following:

Disabling Animations and Fading Windows
Under Ubuntu Unity Plugin, setting the "Dash Blur" to "No Blur"
Under Open GL, changing the texture filter to "Fast" and unchecked Framebuffer object.

edited Oct 18 '13 at 16:27

Eric Carvalho

54,385

answered Oct 18 '13 at 16:11

user204218

1

Is there a simple way to diagnose Unity performance issues?

1 Answers1