[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #48 from coe...@gmail.com --- (In reply to coekbe from comment #45) > Note how > there are never any writes or reads on the FIFO at all in the test app. Yet > the hammering goes on. > I was confused about this. This is actually the correct

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #47 from Mauro Carvalho Chehab --- (In reply to José JORGE from comment #46) > Yes a big thanks for all, it was beyond my abilities... Yeah, fixing performance issues usually is not trivial. > For an end user, is

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #46 from José JORGE --- Yes a big thanks for all, it was beyond my abilities... For an end user, is there an idea when an official release will bring this fix? -- You are receiving this mail because: You are

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #45 from coe...@gmail.com --- (In reply to Mauro Carvalho Chehab from comment #43) > > That's the expected behavior. Basically, reads and writes are buffered > internally at the Kernel. When such buffer is filled, a write to the > buffer

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Mauro Carvalho Chehab changed: What|Removed |Added Status|CONFIRMED |RESOLVED

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #43 from Mauro Carvalho Chehab --- (In reply to coekbe from comment #41) > Created attachment 106508 [details] > Demo app to show infinite signal emission > > It looks like using a write notifier on a FIFO (or an

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #42 from coe...@gmail.com --- Created attachment 106509 --> https://bugs.kde.org/attachment.cgi?id=106509=edit A patch using a read notifier Another patch fixing the 100% cpu usage -- You are receiving this mail because: You are

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 coe...@gmail.com changed: What|Removed |Added CC||coe...@gmail.com --- Comment #41 from

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #40 from Jan Palus --- Looks like this was it! After applying last patch issue did not occur within 10min of constant channel switching. Thanks a lot Mauro! -- You are receiving this mail because: You are watching all

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Mauro Carvalho Chehab changed: What|Removed |Added Attachment #106506|0 |1 is

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #38 from Mauro Carvalho Chehab --- Created attachment 106506 --> https://bugs.kde.org/attachment.cgi?id=106506=edit Disable notifier if no data (In reply to Jan Palus from comment #36) > Looks like it's still the

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #37 from Jan Palus --- And just to be clear -- not empty counter continues to increase with the same pace once bug is triggered and everything works fine (TV runs smoothly), it's just high CPU usage in the background

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #36 from Jan Palus --- Looks like it's still the same, but I'm not really sure whether we are on the same page -- writeToPipe() is not looping. It is rather called a lot once the bug is triggered. I've made following

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Mauro Carvalho Chehab changed: What|Removed |Added Attachment #106501|0 |1 is

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Mauro Carvalho Chehab changed: What|Removed |Added Attachment #106498|0 |1 is

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #33 from Mauro Carvalho Chehab --- (In reply to Mauro Carvalho Chehab from comment #32) > Ok, error 11 is EAGAIN. I suspect that the pipeline buffer is full. > Probably, VLC is too slow to handle the DVB channel

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #32 from Mauro Carvalho Chehab --- Created attachment 106500 --> https://bugs.kde.org/attachment.cgi?id=106500=edit Wait 100ms before retrying after an error (In reply to Jan Palus from comment #31) > Thanks for

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #31 from Jan Palus --- Thanks for the patch. Unfortunately it does not change much -- issue is still there. New warning is constantly printed when kaffeine operates normally: 08-07-17 14:23:17.447 [Warning ]

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #30 from Mauro Carvalho Chehab --- Created attachment 106498 --> https://bugs.kde.org/attachment.cgi?id=106498=edit Don't ignore errors when writing to libVLC pipe (In reply to Jan Palus from comment #29) > It

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #29 from Jan Palus --- It appears once the issue is triggered DvbLiveViewInternal::writeToPipe() is called thousands of times a second but buffers is always empty. -- You are receiving this mail because: You are

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #28 from Jan Palus --- Some random observations: 1. For some reason issue is much easier to reproduce if kaffeine is run from gdb. Usually takes single channel change to trigger the problem 2. With enabled

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Szymon Stefanek changed: What|Removed |Added CC||pra...@kvirc.net

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #26 from Jan Palus --- Created attachment 106452 --> https://bugs.kde.org/attachment.cgi?id=106452=edit callgrind output Also attaching callgrind output -- You are receiving this mail because: You are watching all

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #25 from Jan Palus --- I experience the same issue (version 2.0.10). Seems like it starts to happen as soon as some glitch in decoding is encountered -- video artifacts, green screen which kaffeine recovers from within

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Jan Palus changed: What|Removed |Added CC||jan.pa...@gmail.com ---

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 stetsbeq...@womentie.de changed: What|Removed |Added CC||stetsbeq...@womentie.de --- Comment

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #22 from Mauro Carvalho Chehab --- (In reply to José JORGE from comment #21) > (In reply to Mauro Carvalho Chehab from comment #18) > > Bug #371579 was fixed upstream. Could you please test if this solved the > >

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Michal Donat changed: What|Removed |Added CC||mic...@donat.cz -- You are

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #21 from José JORGE --- (In reply to Mauro Carvalho Chehab from comment #18) > Bug #371579 was fixed upstream. Could you please test if this solved the > issue for you? Issue not solved as of today's GIT. I could get

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #20 from Mauro Carvalho Chehab --- (In reply to José JORGE from comment #19) > (In reply to Mauro Carvalho Chehab from comment #18) > > Bug #371579 was fixed upstream. Could you please test if this solved the > >

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #19 from José JORGE --- (In reply to Mauro Carvalho Chehab from comment #18) > Bug #371579 was fixed upstream. Could you please test if this solved the > issue for you? Thanks, but I suppose I have to checkout form

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #18 from Mauro Carvalho Chehab --- (In reply to José JORGE from comment #17) > (In reply to Mauro Carvalho Chehab from comment #16) > > If any of this task happens as often as the scheduler is called, it will > >

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #17 from José JORGE --- (In reply to Mauro Carvalho Chehab from comment #16) > If any of this task happens as often as the scheduler is called, it will > show 100% CPU usage. It is hard to discover what task is taking

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #16 from Mauro Carvalho Chehab --- a "100% CPU" usage, doesn't really mean that the CPU is 100%. The way the Kernel generates this stat is by identifying how many times the Kernel task scheduler is idle, e. g. if

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 yuli...@mailbox.org changed: What|Removed |Added CC||yuli...@mailbox.org -- You are receiving

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 johan.claudebreunin...@gmail.com changed: What|Removed |Added CC||johan.claudebreuninger@gmai

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #14 from knossos456 --- oups in wrong section -- You are receiving this mail because: You are watching all bug changes.

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #13 from knossos456 --- my diseqc propblem is solved, I've changed the switch. I have now problems on some DVB-S2 - 8PSK transponder. DVB-S2 QPSK seem to be OK in all cases. For example, i can't scan :

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #12 from José JORGE --- (In reply to Mauro Carvalho Chehab from comment #11) > option is accepted there. You could try those: > --no-video-title-show -V xcb_glx > or: > --no-video-title-show -V xcb_xv > >

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #11 from Mauro Carvalho Chehab --- (In reply to Mauro Carvalho Chehab from comment #10) > (In reply to José JORGE from comment #8) > > (In reply to knossos456 from comment #7) > > I use vlc 2.2.4. It is important to

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #10 from Mauro Carvalho Chehab --- (In reply to José JORGE from comment #8) > (In reply to knossos456 from comment #7) > > If you dont use virtual adapters, please notice also that kaffeine 2.0x use > > vlc as dvb

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #9 from knossos456 --- Ok, understanded. Have VLC same probleme with a recoded HD stream ? Have you installed Ubuntu from scratch or upgraded a previous version ? What will done the command vdpauinfo ? On my side,

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #8 from José JORGE --- (In reply to knossos456 from comment #7) > If you dont use virtual adapters, please notice also that kaffeine 2.0x use > vlc as dvb core, and perhaps your version of Vlc is not correct, version >

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #7 from knossos456 --- I'm on Ubuntu 16.04 LTS. I roll back to Kaffeine 1.22 too because Kaffeine 2.0x have crach problemes with virtual dvb adapter (dvbloopback) wich is need to descramble. If you dont use virtual

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #6 from Oscar Fuentes --- Kubuntu 16.10 comes with Kaffeine 2.0.4. As far as I recall I never experienced the same problem with Kaffeine 1.x, for the 8 years I'm using it. (Currently I'm using Kaffeine 1.2.2 again due to

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #5 from knossos456 --- And wich version of Kaffeine for each (exact 2.0x version)? Have you same problem with Kaffeine 1.22 based on Xnine ? -- You are receiving this mail because: You are watching all bug changes.

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #4 from Oscar Fuentes --- Mine is an ATI HD6450 (also R600) using the radeon non-propietary driver. No problems with VLC. -- You are receiving this mail because: You are watching all bug changes.

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 --- Comment #3 from José JORGE --- (In reply to knossos456 from comment #2) > Have you same problem with VLC (because newest Kaffeine is based on VLC > core) ? > For me and ATI 5450, all is OK (VLC and Kaffeine) for VDPAU and

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 knossos456 changed: What|Removed |Added CC||knossos...@gmail.com ---

[kaffeine] [Bug 368907] kaffeine sometimes uses 100% CPU

https://bugs.kde.org/show_bug.cgi?id=368907 Oscar Fuentes changed: What|Removed |Added CC||o...@wanadoo.es --- Comment