[CentOS] Desktop lag with CentOS7/Mate and high CPU usage
james-p at moving-picture.com
Wed Jul 18 15:31:50 UTC 2018
We have noticed significant desktop/UI lag on CentOS7 workstations using
Mate when the CPU usage is high - i.e. the mouse pointer lags and moving
windows (e.g. terminal windows) become jumpy (not smooth)
We didn't see (or notice) this issue with CentOS6/Gnome2
This can easily be shown by running something like 'cpuburn'
(https://patrickmn.com/projects/cpuburn/) and moving a mate-terminal
window around the screen
We can make things 'better' by running CPU intensive apps via 'nice'
(without any noticeable performance hit to the CPU intensive app) - but
this is a rather messy way of fixing the issue
We can also make things better by renice'ing X to a negative nice level
However, both these approaches seem wrong to me - as I'm probably
missing something straightforward here
Does anyone know of any CentOS7/Mate settings that could be used to
improve desktop/UI responsiveness with high CPU usage ?
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