incorporate MPSC queue improvements

Description

Contributor guide

Tech stack

java

Domain

performancebackend

Issue type

refactor

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

4

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

over 1 week

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

needs investigation

Prerequisites

concurrent programmingAkka internals

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

15

Research direction

First, examine the referenced Netty PR (netty/netty#2529) to understand the MPSC queue improvements. Then, identify the relevant MPSC queue implementation in Akka's codebase, likely in the akka actor module. Assess which improvements can be adopted while preserving existing Unsafe usage. The issue lacks specific acceptance criteria, so reach out to maintainers for clarification on the desired scope.