ce9a4afa6f
Currently we do very a complex rebalancing of runnable goroutines between queues, which tries to preserve scheduling fairness. Besides being complex and error-prone, it also destroys all locality of scheduling. This change uses simpler scheme: leave runnable goroutines where they are, during starttheworld start all Ps with local work, plus start one additional P in case we have excessive runnable goroutines in local queues or in the global queue. The schedler must be able to operate efficiently w/o the rebalancing, because garbage collections do not have to happen frequently. The immediate need is execution tracing support: handling of garabage collection which does stoptheworld/starttheworld several times becomes exceedingly complex if the current execution can jump between Ps during starttheworld. Change-Id: I4fdb7a6d80ca4bd08900d0c6a0a252a95b1a2c90 Reviewed-on: https://go-review.googlesource.com/1951 Reviewed-by: Rick Hudson <rlh@golang.org> |
||
|---|---|---|
| api | ||
| doc | ||
| include | ||
| lib/time | ||
| misc | ||
| src | ||
| test | ||
| .gitattributes | ||
| .gitignore | ||
| AUTHORS | ||
| CONTRIBUTING.md | ||
| CONTRIBUTORS | ||
| favicon.ico | ||
| LICENSE | ||
| PATENTS | ||
| README.md | ||
| robots.txt | ||
The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
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.)
Please report issues here: https://golang.org/issue/new
Go is the work of hundreds of contributors. We appreciate your help!
To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html
Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.
--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.