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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: comp.lang.c++
Subject: Re: Futexes ain't fast
Date: Thu, 26 Sep 2024 11:09:03 -0700
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In-Reply-To: <vd475a$ampp$1@raubtier-asyl.eternal-september.org>

On 9/26/2024 10:54 AM, Bonita Montero wrote:
> Am 26.09.2024 um 19:48 schrieb Chris M. Thomasson:
> 
>> On 9/26/2024 10:44 AM, Bonita Montero wrote:
> 
>>> Adaptive mutexes often don't make any sense. The locking-frequency has
>>> to be high and the locked-interval needs to be very short to make spin-
>>> ning likely to succeed. That's both not often.
> 
>> Adaptive mutexes with the right spin counts do make a difference!
> 
> Only under the rare circumstances I've shown.
> 
>> I just showed you one use of try_lock. This is just one out of many. 
>> try_lock is useful.
> 
> No one needs try_lock.
^^^^^^^^^^^^^^

Yawn...