25954b64c0
This ought to help clients who don't enable autovectorization.
With autovectorization enabled, this new version is like,
hyper-vectorized compared to the old autovectorization.
Instead of handling 128 bytes max per loop, it now
handles up to 512 bytes per loop. Pretty exciting.
Locally perf effects are a mix, but we'd expect this to help
Chrome unambiguously if they've turned off autovectorization.
$ out/ok bench:samples=100 sw filter:match=memset32_\\d\* serial
Before:
[memset32_100000] 16ms @0 20.1ms @99 20.2ms @100
[memset32_10000] 1.07ms @0 1.26ms @99 1.31ms @100
[memset32_1000] 73.9µs @0 89.4µs @99 90.1µs @100
[memset32_100] 8.59µs @0 9.74µs @99 9.96µs @100
[memset32_10] 7.45µs @0 8.96µs @99 8.99µs @100
[memset32_1] 2.29µs @0 2.81µs @99 2.92µs @100
After:
[memset32_100000] 16.2ms @0 17.3ms @99 17.3ms @100
[memset32_10000] 1.06ms @0 1.18ms @99 1.23ms @100
[memset32_1000] 72µs @0 75.6µs @99 84.7µs @100
[memset32_100] 9.14µs @0 10.6µs @99 10.7µs @100
[memset32_10] 5.43µs @0 5.88µs @99 5.99µs @100
[memset32_1] 3.43µs @0 3.65µs @99 3.83µs @100
BUG=chromium:755391
Change-Id: If9059a30ca7a345f1f7c37bd51473c29e8bb8922
Reviewed-on: https://skia-review.googlesource.com/34746
Reviewed-by: Florin Malita <fmalita@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
|
||
|---|---|---|
| animations | ||
| bench | ||
| bin | ||
| debugger | ||
| dm | ||
| docs | ||
| example | ||
| experimental | ||
| fuzz | ||
| gm | ||
| gn | ||
| include | ||
| infra | ||
| platform_tools | ||
| resources | ||
| samplecode | ||
| site | ||
| src | ||
| tests | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .gitignore | ||
| .gn | ||
| AUTHORS | ||
| BUILD.gn | ||
| codereview.settings | ||
| CONTRIBUTING | ||
| CQ_COMMITTERS | ||
| DEPS | ||
| Doxyfile | ||
| LICENSE | ||
| PRESUBMIT.py | ||
| public.bzl | ||
| README | ||
| README.chromium | ||
| whitespace.txt | ||
Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. See full details, and build instructions, at https://skia.org.