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| author | Michael Anthony Knyszek <mknyszek@google.com> | 2025-05-09 19:54:01 +0000 |
|---|---|---|
| committer | Michael Knyszek <mknyszek@google.com> | 2025-05-15 08:27:04 -0700 |
| commit | fac2ccbed320ef9fdca251d63b759b61bbc21f2a (patch) | |
| tree | 700d28a6de36576b15cdf387e82380a51d90fd11 | |
| parent | 01e0e8b6b397f2e775d9ccbfcde104d025464382 (diff) | |
| download | go-fac2ccbed320ef9fdca251d63b759b61bbc21f2a.tar.xz | |
doc: add a release note for greenteagc GOEXPERIMENT
For #71661.
Change-Id: I802b0c36cac3bbd87b35ff216f06822e87fb7b5d
Reviewed-on: https://go-review.googlesource.com/c/go/+/671439
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
| -rw-r--r-- | doc/next/4-runtime.md | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/next/4-runtime.md b/doc/next/4-runtime.md index e19996863d..4e8182c8cf 100644 --- a/doc/next/4-runtime.md +++ b/doc/next/4-runtime.md @@ -24,3 +24,15 @@ On Linux systems with kernel support for anonymous VMA names mappings with context about their purpose. e.g., `[anon: Go: heap]` for heap memory. This can be disabled with the [GODEBUG setting](/doc/godebug) `decoratemappings=0`. + +<!-- go.dev/issue/73581 --> + +A new experimental garbage collector is now available as an experiment. The +new design aims to improve the efficiency of garbage collection through better +locality and CPU scalability in the mark algorithm. Benchmark result vary, but +we expect somewhere between a 10—40% reduction in garbage collection overhead +in real-world programs that heavily use the garbage collector. + +The new garbage collector may be enabled by setting `GOEXPERIMENT=greenteagc` +at build time. See the [GitHub issue](/issue/73581) for more details on the design +and instructions on how to report feedback. |