<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - CPU iowait higher when run the GPU multi decoding threads" href="https://bugs.freedesktop.org/show_bug.cgi?id=109830#c30">Comment # 30</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - CPU iowait higher when run the GPU multi decoding threads" href="https://bugs.freedesktop.org/show_bug.cgi?id=109830">bug 109830</a> from <a class="email" href="mailto:tvrtko.ursulin@linux.intel.com" title="Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>"> Tvrtko Ursulin</a> <pre>(In reply to Owen Zhang from <a href="show_bug.cgi?id=109830#c27">comment #27</a>) > Hi， > > i have made the following changes on kernel 4.19: > > 1) apply the following patch: > <a href="https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/">https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/</a> > ?h=linux-4.20.y&id=0a2fff2428f1e175932dc3cf115b68c868e3a839 This patch makes a difference on it's own? How much? If it does, I think you have to test by ensuring input data is cached before the timing run, and dump the output to /dev/null. Otherwise you are accounting for the changes in kernel's block and filesystem subsystems as well. P.S. I haven't had the time yet to try the repro using the latest instructions.</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> <li>You are on the CC list for the bug.</li> </ul> </body> </html>