<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb] Frequent framerate drops" href="https://bugs.freedesktop.org/show_bug.cgi?id=81682#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [snb] Frequent framerate drops" href="https://bugs.freedesktop.org/show_bug.cgi?id=81682">bug 81682</a> from <a class="email" href="mailto:bugsfreedesktop@emeraldreverie.org" title="Greg Sutcliffe <bugsfreedesktop@emeraldreverie.org>"> Greg Sutcliffe</a> <pre>(In reply to <a href="show_bug.cgi?id=81682#c11">comment #11</a>) > Can you grab a photo of the overlay during the stall? What I am looking for > this time is whether it is recording long waits and the status of rc6 during > that period. That the cpu goes up during that time is interesting. Last night it seemed very unwilling to reproduce properly, but I did get a period of repeatedly stalling/unstalling so I grabbed a shot of that. You can see RC6 is around 95%. I'll try to get a proper shot next time it reproduces correctly > Now, the next challenge is to grap a perf profile from the good/bad periods. Conveniently, the one time last night it reproduced the bug properly, I had *just* finished compiling perf. So, I've attached the output of "perf record -g -a sleep 2" (gzipped for size) as well as a repeat of that command later on when it was behaving itself. > Do you see a noticeable fluctuation in CPU activity during time as well? > Could you also watch powertop and see how cpufreq fluctuates? Sadly, as discussed above, it refused to reproduce properly after I installed powertop. I'll try to watch for this tonight.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>