Maybe it's related: Unity eats up a lot of CPU in the latest version,
but not on mir but surfaceflinger, resulting in very bad responsiveness.
Sometimes it's unusable, and "sudo reboot" doesn't work anymore...
top snapshot while doing nothing:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1614 phablet 20 0 263m 77m 47m S 62.3 4.1 2:13.67 unity8
534 system 20 0 70304 42m 39m S 12.1 2.2 1:12.00 surfaceflinger
2083 phablet 30 10 310m 126m 37m R 7.4 6.8 1:21.44 QtWebProcess
3691 phablet 20 0 4540 1256 784 R 3.5 0.1 0:00.61 top
3501 root 20 0 0 0 0 S 3.2 0.0 0:03.79 kworker/u:33
3503 root 20 0 0 0 0 S 2.4 0.0 0:01.29 kworker/u:35
...
Version: 7.82+13.10.20131004.1-0ubuntu1
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https://bugs.launchpad.net/bugs/1235190
Title:
[mako] Unity8 on Mir got slow
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