diff options
Diffstat (limited to 'doc/diagnostics.html')
| -rw-r--r-- | doc/diagnostics.html | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/diagnostics.html b/doc/diagnostics.html index 0a7847744..478611c15 100644 --- a/doc/diagnostics.html +++ b/doc/diagnostics.html @@ -456,3 +456,15 @@ each collection, summarizing the amount of memory collected and the length of the pause.</li> <li>GODEBUG=schedtrace=X prints scheduling events every X milliseconds.</li> </ul> + +<p>The GODEBUG environmental variable can be used to disable use of +instruction set extensions in the standard library and runtime.</p> + +<ul> +<li>GODEBUG=cpu.all=off disables the use of all optional +instruction set extensions.</li> +<li>GODEBUG=cpu.<em>extension</em>=off disables use of instructions from the +specified instruction set extension.<br> +<em>extension</em> is the lower case name for the instruction set extension +such as <em>sse41</em> or <em>avx</em>.</li> +</ul> |