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fuchsia/integration/4b99deda0b0beaa9d1035a162d5fab2c75bbde46
commit
4b99deda0b0beaa9d1035a162d5fab2c75bbde46
[log]
author
John Grossman <johngro@fuchsia.infra.roller.google.com>
Tue May 07 19:14:50 2024 +0000
committer
Copybara-Service <copybara-worker@google.com>
Tue May 07 12:16:18 2024 -0700
tree
273fe88d27a9036ae2a97e8a074fc3c748b90cd4
parent
3ae8f874442b1f185be510be9abf1af1099d16eb [diff]
[roll] Roll fuchsia [kernel] Remove the global thread lock.

Remove the kernel-wide global thread lock (GTL) and replace it with a
combination of different locks, mostly made up of:

1) A ChainLock instance per Thread.
2) A ChainLock instance per WaitQueue.
3) A SpinLock instance per Scheduler.

Contention data collected via tracing shows that the breakup can
reduce the total amount of spinning across all locks in the kernel by
a factor of 10-15 depending on the work load.

Run-All-Tests: true
Cq-Include-Trybots: luci.turquoise.global.try:run-postsubmit-tryjobs

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/926125
Original-Revision: 6bc94dd044cecfd7eb47e477cd8d7e250c8b765e
GitOrigin-RevId: 307cf34414b8d92f25f336294df5bf92d583a31c
Change-Id: Ia8cc94245a5380a00c06b77b689e1d134b621ade
1 file changed
tree: 273fe88d27a9036ae2a97e8a074fc3c748b90cd4
  1. ctf/
  2. git-hooks/
  3. infra/
  4. third_party/
  5. cts
  6. firmware
  7. flower
  8. jiri.lock
  9. MILESTONE
  10. minimal
  11. prebuilts
  12. README.md
  13. stem
  14. test_durations
  15. toolchain
README.md

Integration

This repository contains Fuchsia's Global Integration manifest files.

Making changes

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.

Obtaining the source

First install Jiri.

Next run:

$ jiri init
$ jiri import minimal https://fuchsia.googlesource.com/integration
$ jiri update

Third party

Third party projects should have their own subdirectory in ./third_party.