[Bug 103343] [GEN9+] 2-11% performance drop in GfxBench ALU2 & SynMark TexFilterTri from "i965/tex: Use blorp texture upload for all CCS_E textures"

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Oct 27 17:06:00 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=103343

Mark Janes <mark.a.janes at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|intel-3d-bugs at lists.freedes |jason at jlekstrand.net
                   |ktop.org                    |

--- Comment #3 from Mark Janes <mark.a.janes at intel.com> ---
When I measured this, I found that part of the performance drop was due to the
2 subsequent commits.

cdf626294e * i965: Use blorp instead of meta for PBO pixel reads
f933ef00e1 * i965: Use blorp instead of meta for PBO texture

I confirmed Eero's finding that 157faa407f51829fb8b2d2af723547dc8a0d3849 caused
the biggest drop.

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