doc/next: delete

The release note fragments have been merged and added
as _content/doc/go1.24.md in x/website in CL 634056.

For #68545.

Change-Id: I7b3840df01b8c3699681c0cd21a16af70f74d31d
Reviewed-on: https://go-review.googlesource.com/c/go/+/634057
Auto-Submit: Michael Knyszek <mknyszek@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
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Gopher Robot 2024-12-05 21:25:20 +00:00
parent d34e2ad194
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## Runtime {#runtime}
<!-- go.dev/issue/54766 -->
<!-- go.dev/cl/614795 -->
<!-- go.dev/issue/68578 -->
Several performance improvements to the runtime have decreased CPU overheads by
2—3% on average across a suite of representative benchmarks.
Results may vary by application.
These improvements include a new builtin `map` implementation based on
[Swiss Tables](https://abseil.io/about/design/swisstables), more efficient
memory allocation of small objects, and a new runtime-internal mutex
implementation.
The new builtin `map` implementation and new runtime-internal mutex may be
disabled by setting `GOEXPERIMENT=noswissmap` and `GOEXPERIMENT=nospinbitmutex`
at build time respectively.