9fc55a9dc9
This queue is used for transferring tick samples between the foreground thread which creates them and the background thread which processes them. I've tested this on the node server example that we are using to measure memory use and found that we never fill the queue at this size. The load factor of the queue is basically a measure of how fast the producer pushes to it and how fast the consumer processes samples from it. To load test the configuration a bit I reduced the sampling interval from 1000us (1000 samples/sec) to 50us (20,000 samples/sec). At this rate we still only use 196/251 available slots in the queue at peak load (measurement taken by keeping a running max of #slots used, taken at StartEnqueue()). The default sampling interval is 1000us. 512 KiB ought be enough for anybody! Bug: v8:7719 Change-Id: I93cc1119d3549a319d2db8b831781712bfb88613 Reviewed-on: https://chromium-review.googlesource.com/c/1397704 Reviewed-by: Alexei Filippov <alph@chromium.org> Reviewed-by: Yang Guo <yangguo@chromium.org> Commit-Queue: Peter Marshall <petermarshall@chromium.org> Cr-Commit-Position: refs/heads/master@{#58600} |
||
|---|---|---|
| benchmarks | ||
| build_overrides | ||
| custom_deps | ||
| docs | ||
| gni | ||
| include | ||
| infra | ||
| samples | ||
| src | ||
| test | ||
| testing | ||
| third_party | ||
| tools | ||
| .clang-format | ||
| .clang-tidy | ||
| .editorconfig | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .gn | ||
| .vpython | ||
| .ycm_extra_conf.py | ||
| AUTHORS | ||
| BUILD.gn | ||
| ChangeLog | ||
| CODE_OF_CONDUCT.md | ||
| codereview.settings | ||
| DEPS | ||
| LICENSE | ||
| LICENSE.fdlibm | ||
| LICENSE.strongtalk | ||
| LICENSE.v8 | ||
| LICENSE.valgrind | ||
| OWNERS | ||
| PRESUBMIT.py | ||
| README.md | ||
| snapshot_toolchain.gni | ||
| WATCHLISTS | ||
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://github.com/v8/v8/wiki
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 on the V8 wiki.