doc/next: document cgo call overhead improvement

Change-Id: Ibac18513d2f76172665b4f3a4ea09b69ae0bdef3
Reviewed-on: https://go-review.googlesource.com/c/go/+/725664
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
This commit is contained in:
Michael Anthony Knyszek 2025-12-01 18:29:34 +00:00 committed by Michael Knyszek
parent 6e4abe8cef
commit 77c795011b

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@ -20,3 +20,9 @@ The new garbage collector may be disabled by setting
This opt-out setting is expected to be removed in Go 1.27. This opt-out setting is expected to be removed in Go 1.27.
If you disable the new garbage collector for any reason related to its If you disable the new garbage collector for any reason related to its
performance or behavior, please [file an issue](/issue/new). performance or behavior, please [file an issue](/issue/new).
### Faster cgo calls
<!-- CL 646198 -->
The baseline runtime overhead of cgo calls has been reduced by ~30%.