Ricardo Lugo wrote: > On Dec 2, 2006, at 5:30 PM, Hans Verkuil wrote: > >> On Saturday 02 December 2006 23:17, John Harvey wrote: >>>> -----Original Message----- >>>> From: [EMAIL PROTECTED] >>>> [mailto:[EMAIL PROTECTED] On Behalf Of Jelle >>>> Sent: 02 December 2006 21:57 >>>> To: Discussion list for development of the IVTV driver >>>> Subject: Re: [ivtv-devel] 50% CPU usage while using PVR350 >>>> tv-out and mythtv >>>> >>>> Hans Verkuil wrote: >>>>> On Saturday 02 December 2006 06:55, Petter Gundersen wrote: >>>>>> I have some info about the issue with high cpu usage while >>>> using the >>>> >>>>>> pvr350 tv-out and mythtv. >>>>>> >>>>>> Earlier reports here: >>>>>> http://www.gossamer-threads.com/lists/ivtv/users/32506#32506 >>>>>> http://www.gossamer-threads.com/lists/ivtv/users/32807#32807 >>>>>> >>>>>> This started happening between ivtv 0.7.0 and 0.7.1, more >>>> precisely >>>> >>>>>> changeset 3406 "Added workaround for the DMA 0x0000000b >>>>>> error...". >>>>>> >>>>>> I'm not sure if this is a ivtv bug, a myth bug, or if some of my >>>>>> kernel settings are messing things up. Since I never have had >>>>>> any problems with the DMA 0x0000000b error, I use the attached >>>> patch with >>>> >>>>>> ivtv 0.8.1, and my cpu usage is back to it's normal ~1%. The >>>>>> patch reverts changeset 3413, 3407 and parts of 3400. >>>>>> >>>>>> Regards, >>>>>> Petter >>>>> Which process is it that takes so much CPU time? >>>> For me it was the X server itself that used 2x-3x as much CPU >>>> without the patch. >>>> >>>> Jelle. >>> I would have guessed at that being the case. It's probably actually >>> time spent waiting in the kernel rather than doing any real work. At >>> least that was the case before I managed to reduce the cpu usage to >>> current levels. >> Ah, I think I found it. Thanks for narrowing it down for me. Please >> try >> the attached patch (should work for ivtv-0.8 and ivtv-0.9) and let me >> know if this fixes the CPU load. > > For me it was mythfrontend that was consuming 50-60% CPU. > > But, this patch works! Thanks!
It works here too. CPU usage is 'normal' low again. Jelle. > > - Rick > >> Thanks, >> >> Hans >> <ivtv-queue.c.diff> >> _______________________________________________ >> ivtv-devel mailing list >> [email protected] >> http://ivtvdriver.org/mailman/listinfo/ivtv-devel > > > _______________________________________________ > ivtv-devel mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-devel > _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
