On Mon, Oct 18, 2010 at 9:08 PM, JohnS <jse...@gmail.com> wrote: > > On Mon, 2010-10-18 at 18:25 -0700, Aleksey Tsalolikhin wrote: >> Hi. A friend of mine was doing real-time video decoding on >> Fedora Core 13 and he had a performance glitch (1/2 a second >> freeze) every 5-10 seconds. "top" showed flush-253:0 >> process at the moment of the freeze. > > And what is the Priority of it running at? How many Cores also?
He sees this issue at normal priority and at nice -n -19 / -20. He has 6 cores with hyperthreading on 3.8 Ghz, the memory is 1.850 Mhz The system is 980x Intel 6 core He just told me he has two modes for his decoding program, in one mode the system does not write to disk at all, and there are NO GLITCHES doing it this way; another way, it writes lots of little files as it decodes, and the glitch happens actually every 5-20 seconds. Would like to get to the bottom of this so he can decode with temp files and without glitches. Cheers, Aleksey _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
