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The GODEBUG environment variable can be used to disable usage of specific processor features of Go programs that use the sys/cpu package. This is useful for testing and benchmarking different code paths that are guarded by sys/cpu variable checks. Use of processor features can not be enabled through GODEBUG. To disable usage of AVX and SSE41 cpu features on GOARCH amd64 use: GODEBUG=cpu.avx=off,cpu.sse41=off The special "all" option can be used to disable all options: GODEBUG=all=off This aligns the support of GODEBUG for sys/cpu with existing support for GODEBUG in the Go standard library package internal/cpu. Fixes golang/go#33963 Change-Id: I618b71af397bf06c57a49b2a300d032a16d05664 Reviewed-on: https://go-review.googlesource.com/c/sys/+/245237 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Martin Möhrmann <moehrmann@google.com> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
sys
This repository holds supplemental Go packages for low-level interactions with the operating system.
Download/Install
The easiest way to install is to run go get -u golang.org/x/sys. You can
also manually git clone the repository to $GOPATH/src/golang.org/x/sys.
Report Issues / Send Patches
This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.
The main issue tracker for the sys repository is located at https://github.com/golang/go/issues. Prefix your issue with "x/sys:" in the subject line, so it is easy to find.