Comment 72 for bug 1293384

@komali2: have you tried enabling the low graphics mode? There are
instructions here: https://www.whizzy.org/2016/09/unity-7-low-graphics-mode/

Regards,
Stephane

On Thu, Apr 6, 2017 at 8:29 PM, komali2 <email address hidden> wrote:

> I am having the exact issues described in Ubuntu 16.04 on a 2014 Macbook
> Pro (not in a VM).
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1293384
>
> Title:
> Compiz CPU usage dramatically increased in Ubuntu 14.04
>
> Status in Compiz:
> Confirmed
> Status in compiz package in Ubuntu:
> Triaged
>
> Bug description:
> It appears that the workload of low-level graphical operations used by
> compiz when, for example, moving windows has increased dramatically
> between Ubuntu 12.04 and Ubuntu 14.04.
>
> This might not be that visible when using high-end gpus, but should be
> clearly visible when using compiz on llvmpipe and to some-extent
> invalidates the approach of using compiz on top of llvmpipe as a
> fallback when no GPU is available:
>
> How to reproduce:
> 1) Use the unity-3d desktop in Ubuntu 14.04 on top of a non-accelerating
> Xorg driver like "modesetting". Move windows around. Note peak and average
> cpu-usage.
>
> How to verify compiz is the culprit:
> 1) copy /usr/bin/compiz from a Ubuntu 12.04 installation. Drop it in as
> /usr/bin/compiz on 14.04. Reboot. Perform the same window movement.
> CPU-usage should be substantially lower.
>
> This problem also affects VMs running on VMware ESX with a software-
> rendering GPU. Window movement becomes sluggish, which suggests that
> even with GPUs, compiz has increased the number of operations required
> to move windows.
>
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>