https://bugs.freedesktop.org/show_bug.cgi?id=38800
--- Comment #40 from Michel Dänzer michel@daenzer.net 2011-07-08 03:05:20 PDT --- Created an attachment (id=48883) View: https://bugs.freedesktop.org/attachment.cgi?id=48883 Review: https://bugs.freedesktop.org/review?bug=38800&attachment=48883
Use new frontbuffer fence, if any
(In reply to comment #38)
I will probably toy around with this in my spare time if we choose not to rewrite the entire thing now - which i would sort of prefer, given that the current implementation is tested to be pretty reliable on r500+ and i have actual users now starting to use/rely on the radeon timestamping being precise and reliable.
Yeah, sounds like a good plan.
However, I think we should at least fix it to use the new frontbuffer fence. Something like the attached patch (only compile tested).
(In reply to comment #33)
As Jerome's method is guaranteed to at least accurately report the timestamps of page flips, [...]
I don't understand what would prevent accurate timestamp reporting under any circumstances.