[ltt-dev] [RELEASE] Userspace RCU 0.5.1

Mathieu Desnoyers mathieu.desnoyers at efficios.com
Thu Nov 18 21:54:53 EST 2010


Well well, a renaming error seems to have crept into 0.5.0, which caused
problems with atomic operations on 64-bit architectures.

I made sure no other similar problem exist. Anyone using 0.5.0 (released a few
hours ago) should upgrade to 0.5.1.

Thank you,

Mathieu

* Mathieu Desnoyers (mathieu.desnoyers at efficios.com) wrote:
> liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This data
> synchronization library provides read-side access which scales linearly with the
> number of cores. It does so by allowing multiples copies of a given data
> structure to live at the same time, and by monitoring the data structure
> accesses to detect grace periods after which memory reclamation is possible.
> 
> Changelog:
> 
> * Version 0.5.0 changes the API presented by memory model, architecture
>   abstraction and data structure primitives in headers. The prefixes are,
>   respectively:
>   - cmm_ : Concurrent Memory Model
>   - caa_ : Concurrent Architecture Abstraction
>   - cds_ : Concurrent Data Structures
> 
> This will make UST's life easier for instrumentation of large projects like
> MariaDB and qemu.
> 
> Project website: http://lttng.org/urcu
> Download link: http://www.lttng.org/files/urcu/
> 
> 
> -- 
> Mathieu Desnoyers
> Operating System Efficiency R&D Consultant
> EfficiOS Inc.
> http://www.efficios.com

-- 
Mathieu Desnoyers
Operating System Efficiency R&D Consultant
EfficiOS Inc.
http://www.efficios.com




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