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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.arch
Subject: Re: arm ldxr/stxr vs cas
Date: Wed, 11 Sep 2024 13:54:14 -0700
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On 9/11/2024 6:22 AM, jseigh wrote:
> On 9/11/24 00:15, Paul A. Clayton wrote:
>> On 9/9/24 3:14 AM, Terje Mathisen wrote:
>>> jseigh wrote:
[...]
> In software there's a large body of lock-free data structures
> using various deferred reclamation schemes, RCU, hazard pointers,
> etc...  RCU has zero read access cost overhead, hazard pointers
> have almost zero cost, about 3x the cost of a pipelined load.
> Hazard pointers got a lot faster when need for a store/load memory
> barrier was gotten rid of.

Afaict, _you_ did that wrt your SMR+RCU hybrid, right?

[...]