However I realized that the API does not provide affinity control, which can be controlled with the sched_setaffinity() API: https://linux.die.net/man/2/sched_setaffinity
Could we add a ZMQ_THREAD_AFFINITY option to zmq_ctx_set() ? Thanks, Francesco 2017-05-19 12:25 GMT+02:00 Francesco <francesco.monto...@gmail.com>: > Wow, great, I didn't know about ZMQ_THREAD_SCHED_POLICY and > ZMQ_THREAD_PRIORITY, thanks!! > > Francesco > > > 2017-05-19 12:20 GMT+02:00 Luca Boccassi <luca.bocca...@gmail.com>: > > On Fri, 2017-05-19 at 11:58 +0200, Francesco wrote: > >> Hi, > >> I'm using ZeroMQ in an applications with several threads (up to 40). > >> I noticed that in the "master" branch of ZeroMQ the background > >> threads > >> it creates are given a name. That's VERY useful, thanks! > > > > No problem. Had the same issue myself. One day I'd like to further > > improve it to have more specific names (I/O, reaper, shutdown), but it > > would require a lot more refactoring so for now all threads have the > > same name. > > > >> However my question is: my application sets the affinity and the > >> priority of all threads it creates explicitly. Of course it cannot > >> set the affinity/priority of ZMQ background threads. > >> Is it possible to add an API to get the pthread_t (on Linux) or the > >> generic thread handle (platform-dependent) associated with the ZMQ > >> background threads? > >> > >> In that way my application would be able to set affinity and increase > >> priority also of ZMQ background threads... > > > > There is already an API to set those. Check the manpage for > > zmq_ctx_set, and the following options: ZMQ_THREAD_SCHED_POLICY > > ZMQ_THREAD_PRIORITY > > > > Note that as the manpage says you need to set them before creating any > > socket, immediately after creating the context. > > > > Kind regards, > > Luca Boccassi > > _______________________________________________ > > zeromq-dev mailing list > > zeromq-dev@lists.zeromq.org > > https://lists.zeromq.org/mailman/listinfo/zeromq-dev >
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