| commit | b625828ddaa6bd477a7b06df891285cb6bec90a1 | [log] [tgz] |
|---|---|---|
| author | Adam Perry <adamperry@fuchsia.infra.roller.google.com> | Thu Jan 04 23:04:42 2024 +0000 |
| committer | Copybara-Service <copybara-worker@google.com> | Thu Jan 04 15:06:19 2024 -0800 |
| tree | d5c4f29990edb4e6a95f91e35b66e46d8412424b | |
| parent | e2943fb752d33f0a2451af1ef44c98e3b8b7b27a [diff] |
[roll] Roll fuchsia [lowpan] parking_lot -> fuchsia-sync parking_lot has a few disadvantages for Fuchsia: * adaptive spin w/ thread yields is great for microbenchmarks but has poor system-wide interactions with interrupts and the scheduler * the parking lot abstraction doesn't convey priority inheritance * implicit heap allocations make it unsuitable for use cases like instrumentation code By contrast, fuchsia-sync is built directly on top of our libsync and Zircon futexes. It tends to perform slightly worse on microbenchmarks because it lacks an adaptive spin but feedback from the kernel team is that we should see better whole-system performance with this implementation. It's also possible that changing synchronization strategies will surface new test flakes in code with latent timing bugs. Original-Bug: b/42169853 Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/966589 Original-Revision: 4776b3628b893caf693fb49493c82dcbf0024ffc GitOrigin-RevId: 0f89532cacf8fa4823f3571510cd57b63a686ccf Change-Id: I5ad2cc6576cfd87095b4cfe2353103f266c99777
This repository contains Fuchsia's Global Integration manifest files.
All changes should be made to the internal version of this repository. Our infrastructure automatically updates this version when the internal one changes.
Currently all changes must be made by a Google employee. Non-Google employees wishing to make a change can ask for assistance via the IRC channel #fuchsia on Freenode.
First install Jiri.
Next run:
$ jiri init $ jiri import minimal https://fuchsia.googlesource.com/integration $ jiri update
Third party projects should have their own subdirectory in ./third_party.