doc: add release notes for PGO improvements

For #61577. For #61422. Change-Id: I575bf657fb36bd7103c73620bb2371d0f490af20 Reviewed-on: https://go-review.googlesource.com/c/go/+/546935 Reviewed-by: Cherry Mui <[email protected]> LUCI-TryBot-Result: Go LUCI <[email protected]>
golang · Dec 4, 2023 · 818de27 · 818de27
1 parent 1926a0b
commit 818de27
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/doc/go1.22.html b/doc/go1.22.html
@@ -124,7 +124,14 @@ <h2 id="runtime">Runtime</h2>
 <h2 id="compiler">Compiler</h2>
 
 <p>
-  TODO: complete this section, or delete if not needed
+  TODO: complete this section.
+</p>
+
+<p><!-- https://go.dev/issue/61577 -->
+  <a href="https://go.dev/doc/pgo">Profile-guided Optimization (PGO)</a> builds
+  can now devirtualize a higher proportion of calls than previously possible.
+  Most programs from a representative set of Go programs now see between 2 and
+  14% improvement from enabling PGO.
 </p>
 
 <h2 id="linker">Linker</h2>