[Mesa-dev] [Bug 107939] Commit 888b7fc causes performance regression

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Sep 19 11:43:41 UTC 2018


Samuel Pitoiset <samuel.pitoiset at gmail.com> changed:

           What    |Removed                     |Added
         Resolution|---                         |WONTFIX
             Status|NEW                         |RESOLVED

--- Comment #2 from Samuel Pitoiset <samuel.pitoiset at gmail.com> ---
Hi David,

Thanks for reporting this.

Unfortunately the original performance tweak doesn't really work on GFX8, as TC
compatible HTILE for 16-bit depth surfaces is only natively supported on GFX9.

I know that this decreases performance for the shadowmapping demo but the
impact is really tiny for real apps and we can't restore it without introducing
rendering problems in some situations (as explained in the commit message).

It's nice to see that your CI system Vulkan is working. :)


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