ID 239211 - [Unconfirmed] Performance Loss with CentOS 7

Problem summary
Customers are reporting serious slow downs when upgrading to Cent OS 7

Customer reported version

2.6v5, 3.1v1, 3.1v3

Customer reported platform
Cent OS 7 

Steps to reproduce

1) Launch any of the specified versions of Mari on Cent OS 7 

2) Paint bake, and perform normal operations

3) Then compare feedback from Centos 6 

Reproduced by support
Not repro'd by Support.

Expected behaviour
Identical performance behaviour regardless of OS 

Actual behaviour
Huge performance loss, 

Reports of GUI slowness and lag (opening color picker, painting, etc)

-Sharing layers across channels doesn't work for some users

-Moving layers within a channel doesn't work from some users (unless they click to the left of the layer's eye icon)

-Folders can't be dragged to the file browser favorites list

-Some reports of adjustment layers between layers causing channel color to change in odd ways