userspace-rcu ☆

« Back to VersTracker

Description:
Library for userspace RCU (read-copy-update)

Type: Formula | Latest Version: 0.15.5@0 | Tracked Since: Nov 4, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: concurrency library rcu multithreading system-programming

Install: brew install userspace-rcu

About:
Userspace RCU is a library that provides a mechanism for implementing read-copy-update (RCU) in userspace applications. It enables highly efficient, lock-less data structure access for concurrent programs, significantly improving performance in read-heavy scenarios. This library is essential for developers building high-performance multi-threaded applications that require safe and fast concurrent data access.

Key Features:

Lock-less read-side synchronization
Memory-safe memory reclamation
Support for both dynamic and static linking
Multiple flavor implementations (e.g., urcu-bp, urcu-mb, urcu-qsbr)

Use Cases:

High-performance concurrent data structures
Real-time systems requiring low-latency access
Database and caching systems

Alternatives:

Atomic Operations – RCU provides a higher-level abstraction for memory reclamation than raw atomics, simplifying lock-less programming.
Mutexes/Locks – RCU offers superior read-side performance compared to locking, as readers do not block writers (and vice-versa) in the common case.

Version History

Detected	Version	Rev	Change	Commit
Nov 4, 2025 8:21pm		0	VERSION_BUMP	0d9745b7