iris: Allocate resources and sampler views aligned to cachelines
This reduces false sharing on the cacheline with the pipe_reference..
See commit c85ce253 for the original version of this optimization (MR !11618 (merged)). See also MR !13431 (merged) (zink) and !13826 (freedreno).
On an i7-12700 with an Arc A750, in out of the box configuration (intel_pstate driver, powersave governor), n = 15 for all runs:
| # | Test Name | Improvement |
|---|---|---|
| 1 | DrawArrays ( 1 VBO, 0 UBO, 0 ) w/ no state change | 1.70135% +/- 0.292772% |
| 2 | DrawElements ( 1 VBO, 0 UBO, 0 ) w/ no state change | 1.75355% +/- 0.322444% |
| 3 | DrawElements (16 VBO, 8 UBO, 16 Tex) w/ no state change | 2.05361% +/- 0.300616% |
| 4 | DrawElements ( 1 VBO, 1 UBO, 1 Tex) w/ buffer replacement change | -8.61107% +/- 0.815775% |
| 5 | DrawElements ( 1 VBO, 8 UBO, 8 Tex) w/ 1 vertex attrib change | No difference proven at 95.0% confidence |
| 6 | DrawElements (16 VBO, 8 UBO, 8 Tex) w/ 16 vertex attribs change | No difference proven at 95.0% confidence |
| 7 | DrawElements ( 1 VBO, 0 UBO, 0 ) w/ shader program change | No difference proven at 95.0% confidence |
| 8 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ shader program change | 2.29801% +/- 0.441721% |
| 9 | DrawElements ( 8 VBO, 8 UBO, 1 Tex) w/ 1/1 texture change | No difference proven at 95.0% confidence |
| 10 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ 1/8 texture change | 3.01614% +/- 0.226258% |
| 11 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ 8/8 textures change | 2.17102% +/- 0.363088% |
| 12 | DrawElements ( 8 VBO, 8 UBO, 1 TBO) w/ 1/1 TBO change | 1.17146% +/- 0.133731% |
| 13 | DrawElements ( 8 VBO, 8 UBO, 8 TBO) w/ 1/8 TBO change | 1.6808% +/- 0.369687% |
| 14 | DrawElements ( 8 VBO, 8 UBO, 8 TBO) w/ 8/8 TBOs change | 1.63276% +/- 0.434764% |
| 15 | DrawElements ( 8 VBO, 8 UBO, 1 Img) w/ 1/1 image change | 2.09392% +/- 0.168898% |
| 16 | DrawElements ( 8 VBO, 8 UBO, 8 Img) w/ 1/8 image change | -1.06727% +/- 0.69195% |
| 17 | DrawElements ( 8 VBO, 8 UBO, 8 Img) w/ 8/8 images change | -1.31341% +/- 0.898368% |
| 18 | DrawElements ( 8 VBO, 8 UBO, 1 ImB) w/ 1/1 image buffer change | 1.85228% +/- 0.169358% |
| 19 | DrawElements ( 8 VBO, 8 UBO, 8 ImB) w/ 1/8 image buffer change | No difference proven at 95.0% confidence |
| 20 | DrawElements ( 8 VBO, 8 UBO, 8 ImB) w/ 8/8 image buffers change | 0.231589% +/- 0.205179% |
| 21 | DrawElements ( 8 VBO, 1 UBO, 8 Tex) w/ 1/1 UBO change | 1.11358% +/- 0.115533% |
| 22 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ 1/8 UBO change | 1.35641% +/- 0.683542% |
| 23 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ 8/8 UBOs change | 1.80005% +/- 0.217873% |
| 24 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ few uniforms / 1 change | 1.301% +/- 0.118177% |
| 25 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ many uniforms / 1 change | 1.68636% +/- 0.519897% |
| 26 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ scissor change | -0.363439% +/- 0.146014% |
| 27 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ viewport change | -0.216902% +/- 0.144408% |
| 28 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ primitive restart enable change | -0.298027% +/- 0.233409% |
| 29 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ blend enable change | No difference proven at 95.0% confidence |
| 30 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ depth enable change | No difference proven at 95.0% confidence |
| 31 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ depth clamp enable change | -0.214305% +/- 0.113856% |
| 32 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ stencil enable change | 0.882903% +/- 0.666095% |
| 33 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ scissor enable change | -0.125107% +/- 0.0897465% |
| 34 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ MSAA enable change | 1.86883% +/- 0.260893% |
| 35 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ sample mask enable change | 1.88844% +/- 0.242596% |
| 36 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ alpha-to-coverage enable change | 1.89394% +/- 0.265288% |
| 37 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ sample shading enable change | 1.767% +/- 0.42694% |
| 38 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ cull face enable change | -0.144104% +/- 0.0681938% |
| 39 | DrawElements ( 8 VBO, 8 UBO, 8 Tex) w/ clip distance enable change | -0.546652% +/- 0.275892% |