[GEN9+] 2-11% performance drop in GfxBench ALU2 & SynMark TexFilterTri from "i965/tex: Use blorp texture upload for all CCS_E textures"
Submitted by Eero Tamminen
Assigned to Jason Ekstrand @jekstrand
Link to original bug (#103343)
Description
While following change:
commit 157faa40 Author: Jason Ekstrand jason.ekstrand@intel.com AuthorDate: Wed May 31 17:53:34 2017 -0700 Commit: Kenneth Graunke kenneth@whitecape.org CommitDate: Thu Oct 12 19:58:40 2017 -0700
i965/tex: Use blorp texture upload for all CCS_E textures
This improves the FillTex benchmark in GLBench 2.7 by 30% on my Broxton.
On Ken's Broxton which only has single-channel ram, it improves by 210%.
v2 (Ken): Check mt->aux_usage == ISL_AUX_USAGE_CCS_E rather than using
intel_miptree_is_lossless_compressed().
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>improved GLB 2.7 Fill hugely and SynMark PSPom slightly on all GEN9+ SoC platforms, it also clearly regressed few tests on all GEN9+ platforms.
These regressions are (depending on platform):
- 3-5% in GfxBench v4 ALU2 onscreen & offscreen tests
- 2-6% in SynMark v7 TexFilterTri test
Version: git
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