On 20/06/2020 12:35, Robin Laing wrote:
On 20/06/2020 02:06, Robin Laing wrote:
On 06/05/2020 22:26, Robin Laing wrote:
On 04/05/2020 15:48, Ed Greshko wrote:
On 2020-05-05 01:15, Robin Laing wrote:
Hello
I am trying to find out why kwin_x11 is using one core on my
machine at and showing 94 to 99% in top. It isn't consistent as
some times this doesn't occur. This is on F30.
I set up another account on this machine for working at home and
switch between the users being logged in at the same time.
User A and B KDE sessions are running. New user C was created for
work. I login user C and switch back to B or A and then one core
goes to 94 to 99% load on kwin_x11 for user C.
If I go to a VT terminal session , the kwin_x11 load disappears so
it is related to both kwin sessions.
If I use a tree listing, there is nothing listed under kwin-x11
strace on the process provides
ppoll([{fd=11, events=POLLIN}, {fd=9, events=POLLIN}, {fd=13,
events=POLLIN}, {fd=6, events=POLLIN}, {fd=5, events=POLLIN}], 5,
{tv_sec=0, tv_nsec=0}, NULL, 8) = 0 (Timeout)
strace Summary of process calls.
% time seconds usecs/call calls errors syscall
------ ----------- ----------- --------- --------- ----------------
100.00 0.713184 6 110466 ppoll
------ ----------- ----------- --------- --------- ----------------
100.00 0.713184 6 110466 total
It does seem to be worse if I have any applications open such as
Firefox or LibreOffice.
Do you know if this issue may have been coincidence with a kernel
update? I had a similar issue, but
didn't investigate, on F31 with a 5.5 kernel. The problem cleared
up after upgrade to F32 and a 5.6
kernel.
I have had it for a few month now.
Will test on a different computer and upgrade to F32. Had issues
with F31 and LUKS support between LUKS 1 and LUKS 2 so concerned
about upgrading.
Robin
Upgraded to F32.
Was having issues with an already working account and decided to test
removing the old config files. Now that I have done that, when I
switch to a different user, I am now using a core at close to 100%.
Never below 99.3%
kwin_x11 at full process.
It is something in the configuration files that affects this so it is
related to some setting.
Robin
_______________________________________________
Just ran an strace on the kwin process and all I get are screens and
screens of this.
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
ppoll([{fd=29, events=POLLIN}, {fd=11, events=POLLIN}, {fd=7,
events=POLLIN}, {fd=5, events=POLLIN}], 4, {tv_sec=0, tv_nsec=0}, NULL,
8) = 0 (Timeout)
I guess it is a bug report time.
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I submitted a bug on this problem but I was doing some changes and
reconfigured my panel to auto hide and the processes were not using 99%
of a CPU when I went to the second account. This was the only setting I
changed.
It looks like that the panel is attempting to update something and is
having an issue.
Robin
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