AuroraMiddleware/v8
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Michael Lippautz 66fc94313b cppgc: Add allocation benchmark 
Output:

$ out/x64.release/cppgc_allocation_benchmark --benchmark_repetitions=3

Running out/x64.release/cppgc_allocation_benchmark
Run on (56 X 3500 MHz CPU s)
CPU Caches:
  L1 Data 32 KiB (x28)
  L1 Instruction 32 KiB (x28)
  L2 Unified 256 KiB (x28)
  L3 Unified 35840 KiB (x2)
Load Average: 0.23, 0.27, 0.27
--------------------------------------------------------------------------------
Benchmark                      Time             CPU   Iterations UserCounters...
--------------------------------------------------------------------------------
Allocate/Tiny               17.0 ns         17.0 ns     40348381 bytes_per_second=55.9692M/s
Allocate/Tiny               17.1 ns         17.1 ns     40348381 bytes_per_second=55.8961M/s
Allocate/Tiny               17.2 ns         17.2 ns     40348381 bytes_per_second=55.3108M/s
Allocate/Tiny_mean          17.1 ns         17.1 ns            3 bytes_per_second=55.7254M/s
Allocate/Tiny_median        17.1 ns         17.1 ns            3 bytes_per_second=55.8961M/s
Allocate/Tiny_stddev       0.112 ns        0.111 ns            3 bytes_per_second=369.571k/s
Allocate/Large             40339 ns        40334 ns        17707 bytes_per_second=1.51326G/s
Allocate/Large             40350 ns        40343 ns        17707 bytes_per_second=1.51292G/s
Allocate/Large             40205 ns        40192 ns        17707 bytes_per_second=1.51861G/s
Allocate/Large_mean        40298 ns        40290 ns            3 bytes_per_second=1.51493G/s
Allocate/Large_median      40339 ns        40334 ns            3 bytes_per_second=1.51326G/s
Allocate/Large_stddev       81.2 ns         84.7 ns            3 bytes_per_second=3.26614M/s

2020-07-03T09: 14:23+02:00
Change-Id: I25a55beb5ea1718af76e638b752bf7d67cfe373e
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2280086
Reviewed-by: Anton Bikineev <bikineev@chromium.org>
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Commit-Queue: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#68672}
2020-07-03 11:58:21 +00:00
build_overrides tracing: Enable using Perfetto client library from Chromium 2020-05-11 11:17:57 +00:00
custom_deps Use relative paths to OWNERS files 2019-08-12 13:52:52 +00:00
docs Add OWNERS for docs/ 2019-05-15 12:06:15 +00:00
gni Add google_benchmark depdendency 2020-07-02 20:11:29 +00:00
include cppgc: Refactor visitation 2/3 2020-07-02 15:56:09 +00:00
infra Reland "infra: Set gcc builders not to use Goma" 2020-06-30 10:41:37 +00:00
samples cppgc: Introduce AllocationHandle 2020-06-10 23:11:20 +00:00
src [ptr-compr] Get Isolate via object address 2020-07-03 11:37:20 +00:00
test cppgc: Add allocation benchmark 2020-07-03 11:58:21 +00:00
testing Roll v8/third_party/googletest/src/ 10b1902d8..e3f0319d8 (43 commits) 2020-04-15 07:23:10 +00:00
third_party Add google_benchmark depdendency 2020-07-02 20:11:29 +00:00
tools [wasm] Add tail call spec tests 2020-07-02 14:11:49 +00:00
.clang-format [clang-format] Don't derive pointer alignment 2017-01-17 09:28:19 +00:00
.clang-tidy [tool] Remove unfixed clang-tidy warnings to ease use. 2018-10-26 07:40:32 +00:00
.editorconfig Add .editorconfig 2017-07-28 13:39:24 +00:00
.flake8 Add .flake8 to allow for python style checking. 2019-07-19 21:44:03 +00:00
.git-blame-ignore-revs [infra] Update .git-blame-ignore-revs 2020-03-03 12:59:13 +00:00
.gitattributes .gitattributes: Mark minified emscripten js files as -diff 2018-09-19 16:27:10 +00:00
.gitignore Add third_party/jsoncpp/source to .gitignore 2020-04-29 07:20:41 +00:00
.gn [build] Dynamically decide if to use system xcode 2019-07-29 08:20:24 +00:00
.vpython [tools] Implement confidence-based number of runs 2019-05-09 09:42:28 +00:00
.ycm_extra_conf.py Fix ycm config for headers without source 2019-12-09 11:59:21 +00:00
AUTHORS [tools] Map search bar feature added, map id changed from int to string 2020-06-18 11:09:21 +00:00
BUILD.gn cppgc: Refactor visitation 1/3 2020-07-02 14:30:39 +00:00
CODE_OF_CONDUCT.md Explicitly state that the Chromium Code of Conduct also applies to V8 2016-03-02 09:51:24 +00:00
codereview.settings Make Gerrit the default code review for V8 2017-06-30 17:37:37 +00:00
COMMON_OWNERS [owners] Add thibaudm and ecmziegler to COMMON_OWNERS 2020-05-20 18:41:54 +00:00
DEPS Update V8 DEPS. 2020-07-03 08:16:55 +00:00
ENG_REVIEW_OWNERS Add eng review owners as escalation path 2019-05-15 19:12:10 +00:00
INFRA_OWNERS Remove myself from owners 2019-12-12 14:22:32 +00:00
INTL_OWNERS add ftang as owner 2020-04-24 19:19:36 +00:00
LICENSE [wasm] Draft version of C/C++ Wasm API 2019-04-17 16:00:26 +00:00
LICENSE.fdlibm Add LICENSE.fdlibm for all the fdlibm imported sources. 2016-06-09 07:17:03 +00:00
LICENSE.strongtalk Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.v8 Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
LICENSE.valgrind Add LICENSE.v8, LICENSE.strongtalk and LICENSE.valgrind to the v8 2011-02-03 07:10:06 +00:00
MIPS_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
OWNERS Add syg@chromium.org as DEPS owner for test262 rolls 2019-09-17 19:29:11 +00:00
PPC_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
PRESUBMIT.py Remove the #undef check from the Presubmit for .cc files 2020-01-24 15:24:51 +00:00
README.md [docs] Change links from old wiki to v8.dev 2019-03-07 12:13:30 +00:00
S390_OWNERS Move architecture dependent files 2019-05-28 14:02:15 +00:00
WATCHLISTS Stop watching for API changes in WATCHLISTS 2020-04-08 07:06:45 +00:00

README.md

V8 JavaScript Engine

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://v8.dev/docs

Getting the Code

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/*

Contributing

Please follow the instructions mentioned at v8.dev/docs/contribute.