Sujet : Re: Futexes ain't fast
De : Bonita.Montero (at) *nospam* gmail.com (Bonita Montero)
Groupes : comp.lang.c++Date : 26. Sep 2024, 18:54:57
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vd475a$ampp$1@raubtier-asyl.eternal-september.org>
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User-Agent : Mozilla Thunderbird
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.
Futexes ain't fast
Re: Futexes ain't fast
