On 12/19/18 5:05 AM, Jerry Geis wrote:
I have three machines running CentOS 7.6 in desktop mode. 2 are fine. 1 of them is having a memory issue that is Out of memory [17878] 1000 17878 2069991 42311 11898880 0 0 gnome-shell
This gnome-shell looking at /var/log/messages after reboot - is the HIGHEST amount of memory. Looking at "top" now - it certainly does not use that amount of ram at this time.
These are the gnome-shell packages installed. rpm -qa | grep gnome-shell gnome-shell-extension-alternate-tab-3.28.1-5.el7.noarch gnome-shell-extension-top-icons-3.28.1-5.el7.noarch gnome-shell-extension-window-list-3.28.1-5.el7.noarch gnome-shell-extension-launch-new-instance-3.28.1-5.el7.noarch gnome-shell-extension-apps-menu-3.28.1-5.el7.noarch gnome-shell-extension-common-3.28.1-5.el7.noarch gnome-shell-extension-user-theme-3.28.1-5.el7.noarch gnome-shell-extension-places-menu-3.28.1-5.el7.noarch gnome-shell-3.28.3-6.el7.x86_64
Why is gnome-shell eating my memory? What can I do?
/rant: gnome-shell has always been this resource hog in the past few years, maybe after they started using JavaScript for almost everything. There are countless memory leaks that are being patched. 3.29 and 3.30 both have important fixes that are not in the 3.28 shipped by Red Hat for RHEL 7.6.
Basically - the machine isn't even doing anything. Boots up and shows one static web page. At this time that is all. Then about 24 hours later its out of memory. The other 2 machines that seem fine - are showing the same web page. But not out of memory.
On workstations, I have to hit Alt-F2 and type "r" to restart gnome-shell every morning to keep its memory use at bay. For long running sessions, I'd switch away from GNOME. Maybe to Cinnamon, XFCE, or any other lightweight desktop environments. Fixing the memory leaks of gnome-shell is not trivial.