5dceddfe7c
gcBgMarkStartWorkers currently starts workers one at a time, using a note to communicate readiness back from the worker. However, this is a pretty standard goroutine, so we can just use a channel to communicate between the goroutines. In addition to being conceptually simpler, using channels has the additional advantage of coordinating with the scheduler. Notes use OS locks and sleep the entire thread, requiring other threads to run the other goroutines. Waiting on a channel allows the scheduler to directly run another goroutine. When the worker sends to the channel, the scheduler can use runnext to run gcBgMarkStartWorker immediately, reducing latency. We could additionally batch start all workers and then wait only once, however this would defeate runnext switching between the workers and gcBgMarkStartWorkers, so in a heavily loaded system, we expect the direct switches to reduce latency. Change-Id: Iedf0d2ad8ad796b43fd8d32ccb1e815cfe010cb4 Reviewed-on: https://go-review.googlesource.com/c/go/+/558535 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> |
||
|---|---|---|
| .github | ||
| api | ||
| doc | ||
| lib/time | ||
| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| codereview.cfg | ||
| CONTRIBUTING.md | ||
| go.env | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| SECURITY.md | ||
The Go Programming Language
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 4.0 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.
Download and Install
Binary Distributions
Official binary distributions are available at https://go.dev/dl/.
After downloading a binary release, visit https://go.dev/doc/install for installation instructions.
Install From Source
If a binary distribution is not available for your combination of operating system and architecture, visit https://go.dev/doc/install/source for source installation instructions.
Contributing
Go is the work of thousands of contributors. We appreciate your help!
To contribute, please read the contribution guidelines at https://go.dev/doc/contribute.
Note that the Go project uses the issue tracker for bug reports and proposals only. See https://go.dev/wiki/Questions for a list of places to ask questions about the Go language.