Xpra: Ticket #2250: xpra-client of shadow has a constant ~35% CPU

Shadow-server:
2019-04-03 11:40:49,790 xpra GTK2 shadow version 2.5-r22096 64-bit
2019-04-03 11:40:49,794  running with pid 18889 on Linux Ubuntu 16.04 xenial
==========
Client:
set "XPRA_EXECUTABLE=C:\Users\stavros.ntentos\Documents\xpra-clients\Xpra-Client-Python3-x86_64_2.5-r22135"
2019-04-03 11:40:51,056 Python/GTK3 Microsoft Windows 10 aero client version 2.5-r22135 64-bit

Xpra-Client-Python3-x86_64_2.5-r22135\xpra_cmd" shadow ssh://user@ip/0  --clipboard=no --opengl=no --desktop-scaling=0.75 --webcam=no --speaker=off --microphone=off

Which is also weird percentage, since I have an i7-3540M (4 logical cores) which means 1-and-8% processors

I am not sure what else to report :/ shadow server was doing "basic stuff" (move mouse and workspaces around etc) and collecting again debugs for #2249

Wed, 03 Apr 2019 10:01:33 GMT - stdedos: attachment set

attachment set to xpra-ProcessHacker_2019-04-03_12-06-37.png

Wed, 03 Apr 2019 10:02:09 GMT - stdedos: attachment set

attachment set to display-0.log

Wed, 03 Apr 2019 14:17:21 GMT - Antoine Martin: owner changed

owner changed from Antoine Martin to stdedos

Can you try to change the refresh delay (in milliseconds):

XPRA_SHADOW_REFRESH_DELAY=200 xpra shadow :0

To see if the CPU usage is related to the refresh rate.

From your log I see:

Xpra GTK2 shadow server version 2.5-r22096 64-bit

That's older than 2.5 final, why is that?

Wed, 03 Apr 2019 14:41:59 GMT - stdedos:

Replying to Antoine Martin:

From your log I see:
Xpra GTK2 shadow server version 2.5-r22096 64-bit
That's older than 2.5 final, why is that?

No idea :/ as per #2246 I only had whatever this

/etc/apt$ grep -TrinP 'xpra|winswitch'
sources.list.d/xpra.list.save:   1     :deb https://xpra.org/beta/ xenial main
sources.list.d/xpra.list:   1  :deb https://xpra.org/beta/ xenial main

gave me as the latest package (I run apt-get update quite frequently).

I only updated minutes after my last #2246 comment.

Wed, 03 Apr 2019 14:45:58 GMT - Antoine Martin:

As per #2246, the beta repository is a supplemental one. Add the stable repository.

Fri, 17 May 2019 08:00:19 GMT - stdedos:

It seems that, with the changed command line, a load of ~37% drops to ~29-30%.

Your logic makes sense

Fri, 17 May 2019 08:00:29 GMT - stdedos: attachment set

attachment set to display-%3A0.log

Fri, 17 May 2019 08:04:45 GMT - Antoine Martin: status changed; resolution set

status changed from new to closed
resolution set to invalid

Closing as invalid: the shadow server users polling, which consumes a lot of CPU.

Sat, 23 Jan 2021 05:46:11 GMT - migration script:

this ticket has been moved to: https://github.com/Xpra-org/xpra/issues/2250