[jdk25u-dev] Integrated: 8364936: Shenandoah: Switch nmethod entry barriers to conc_instruction_and_data_patch

[Aleksey Shipilev]

On Mon, 5 Jan 2026 16:30:34 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Improves Shenandoah performance on some workloads.
> 
> Additional testing:
>  - [x] Linux AArch64 server fastdebug, `hotspot_gc_shenandoah`
>  - [x] Linux AArch64 server fastdebug, `all` with `-XX:+UseShenandoahGC`

This pull request has now been integrated.

Changeset: c900b96a
Author:    Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk25u-dev/commit/c900b96af19406d42df432f0d1ef617743c07778
Stats:     28 lines in 12 files changed: 0 ins; 19 del; 9 mod

8364936: Shenandoah: Switch nmethod entry barriers to conc_instruction_and_data_patch

Backport-of: 81a1e8e1363446de499a59fc706221efde12dd86

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PR: https://git.openjdk.org/jdk25u-dev/pull/129