<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW Bisected] "bdw: Apply workarounds in render ring init function" reduced performance 10%~40%" href="https://bugs.freedesktop.org/show_bug.cgi?id=83482#c3">Comment # 3</a> on <a class="bz_bug_link bz_status_NEW " title="NEW --- - [BDW Bisected] "bdw: Apply workarounds in render ring init function" reduced performance 10%~40%" href="https://bugs.freedesktop.org/show_bug.cgi?id=83482">bug 83482</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>Created <a href="attachment.cgi?id=106369" name="attach_106369" title="DEBUG: drm/i915: add i915.wa module parameter to control bdw workarounds">attachment 106369</a> <a href="attachment.cgi?id=106369&action=edit" title="DEBUG: drm/i915: add i915.wa module parameter to control bdw workarounds">[details]</a> <a href='page.cgi?id=splinter.html&bug=83482&attachment=106369'>[review]</a> DEBUG: drm/i915: add i915.wa module parameter to control bdw workarounds Here's a patch to add a i915.wa module parameter to control the workarounds to be applied. Please read the commit message for details. Please apply this on top of drm-intel-nightly, confirm you still have the perf regression, and drop workarounds one by one (or in groups as necessary, but gets harder) to try to find out which specific workaround makes the difference. Chris, do you have any further comments on this?</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> <li>You are the assignee for the bug.</li> </ul> </body> </html>