Andrzej Dorobisz created GUACAMOLE-668:
------------------------------------------
Summary: Preferring JPEG due to lower CPU usage - controlling
guacd behaviour via some kind of preferences
Key: GUACAMOLE-668
URL: https://issues.apache.org/jira/browse/GUACAMOLE-668
Project: Guacamole
Issue Type: Wish
Components: guacd
Reporter: Andrzej Dorobisz
In our HPC center, we observe that guacamole-server (guacd) is generating quite
high CPU-usage even if only one session is currently processed (it reaches 100%
when moving window back and forth).
We have tested that using JPEG instead of PNG in
"{{__guac_common_surface_flush_}}_" (_src/common/surface.c_) noticeably
decreases the CPU usage. When WebP is available it performs better than PNG but
still it's slower (in terms of CPU usage) than JPEG.
We believe that user running _guacd_ should be able to choose which format is
preferred - without recompilation. Our first idea was to use _guacd.conf_ for
passing such a preference, but we see that it is not so simple. We have to
store such a preference somewhere and then pass it to VNC client which is
calling {{__guac_common_surface_flush}} function.
-------
What do you think about adding such an ability and what would be the best
approach to implement this? If you provide guidance, I can try to implement it.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
