| commit | 9b90491e4a1f98a5b431a49cbf9cbefa18adc883 | [log] [tgz] |
|---|---|---|
| author | Ian Lance Taylor <iant@golang.org> | Mon May 04 16:19:16 2020 -0700 |
| committer | Ian Lance Taylor <iant@golang.org> | Wed Jun 03 05:33:54 2020 +0000 |
| tree | 7b95fa39a866d7edcb88723f4bda2ec8b26a03f4 | |
| parent | 9bbe89957620ab72c03a7613ffdbd10a97b54bd6 [diff] |
runtime: steal timers from running P's Previously we did not steal timers from running P's, because that P should be responsible for running its own timers. However, if the P is running a CPU-bound G, this can cause measurable delays in running ready timers. Also, in CL 214185 we avoided taking the timer lock of a P with no ready timers, which reduces the chances of timer lock contention. So, if we can't find any ready timers on sleeping P's, try stealing them from running P's. Fixes #38860 Change-Id: I0bf1d5dc56258838bdacccbf89493524e23d7fed Reviewed-on: https://go-review.googlesource.com/c/go/+/232199 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com>
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.
Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
Official binary distributions are available at https://golang.org/dl/.
After downloading a binary release, visit https://golang.org/doc/install or load doc/install.html in your web browser for installation instructions.
If a binary distribution is not available for your combination of operating system and architecture, visit https://golang.org/doc/install/source or load doc/install-source.html in your web browser for source installation instructions.
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.