| commit | 8e6c0bb02a617bc99869170c15b994f4bb6c78bb | [log] [tgz] |
|---|---|---|
| author | peterwmwong <peter.wm.wong@gmail.com> | Fri Jan 12 16:07:43 2018 |
| committer | Commit Bot <commit-bot@chromium.org> | Mon Jan 15 13:43:24 2018 |
| tree | a92dc10d78ceb502aa676612f899fad3bcd2b24c | |
| parent | 74a2a8f6113bf64c918345c218699e1fd1d85477 [diff] |
[typedarray] Speed up and simplify TypedArray#set overlap cases - Remove CSA fallback to runtime for overlap cases - Move overlap handling from runtime into elements.cc Depending on typed array size (and overlap size), quick measurements show a 4.3x - 8x improvement. This fixes large >5x performance cliff between overlap and non-overlap cases. https://github.com/peterwmwong/v8-perf/blob/master/typedarray-set-overlap-fast-c-call/README.md Bug: v8:5929 Change-Id: I47758d2ee603bc26f38dd9112567113cf887f5d5 Reviewed-on: https://chromium-review.googlesource.com/846378 Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Peter Marshall <petermarshall@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Commit-Queue: Peter Wong <peter.wm.wong@gmail.com> Cr-Commit-Position: refs/heads/master@{#50578}
V8 is Google's open source JavaScript engine.
V8 implements ECMAScript as specified in ECMA-262.
V8 is written in C++ and is used in Google Chrome, the open source browser from Google.
V8 can run standalone, or can be embedded into any C++ application.
V8 Project page: https://github.com/v8/v8/wiki
Checkout depot tools, and run
fetch v8
This will checkout V8 into the directory v8 and fetch all of its dependencies. To stay up to date, run
git pull origin
gclient sync
For fetching all branches, add the following into your remote configuration in .git/config:
fetch = +refs/branch-heads/*:refs/remotes/branch-heads/*
fetch = +refs/tags/*:refs/tags/*
Please follow the instructions mentioned on the V8 wiki.