[linux-audio-dev] realtimeness: pthread_cond_signal vs. pipe write
jussi.laako at pp.inet.fi
Thu Jul 13 18:15:14 UTC 2006
Dave Robillard wrote:
> Sorry, I /was/ referring to sem_post/sem_wait/etc. I mean havn't tried
> Benchmarking message queues against pipes would be interesting, maybe
> Jack could benefit if they're faster?
I did some benchmarking between unix (local) sockets and message queues
and found speed (roundtrip) to be over twice as fast when using message
In test, process A sends message "Yoohoo" to process B and process B
replies "2U2" back. This is counted as a message exchange in the result.
On my P4/3000 I get this kind of number:
105193.5 messages / second
Nice feature of message queues is that you can get signal-style delivery
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