Following is a PR that fix the slow performance of zmq_poll https://github.com/zeromq/libzmq/pull/2364
On Fri, Mar 10, 2017 at 6:30 PM, Doron Somech <[email protected]> wrote: > How many iterations in the test? The creation of the zmq poller might slow > you down a bit at the begining... > > On Mar 10, 2017 6:16 PM, "brunobodin ." <[email protected]> wrote: > >> Thanks Doron for the explanation >> >> I replaced zmq_poll calls in my code, the new API is also easier to use >> IMHO :-) >> but FYI, I still notice a slight slowdown in my test (about 10%), but >> this is far from a unit test so I am not sure this is related to the new >> poller >> >> Bruno >> >> On Fri, Mar 10, 2017 at 5:01 PM, Doron Somech <[email protected]> wrote: >> >>> Not sure, the change only introduced and recent version, I think. I >>> will make a pull request tomorrow and you will be able to test it. >>> >>> On Mar 10, 2017 5:43 PM, "Jake" <[email protected]> wrote: >>> >>>> Do you all think this is related to the Windows performance issue I >>>> reported here?: >>>> >>>> https://github.com/zeromq/libzmq/issues/2328 >>>> >>>> -Jake >>>> >>>> On Fri, Mar 10, 2017 at 10:36 AM, Doron Somech <[email protected]> >>>> wrote: >>>> >>>>> zmq_poll now use zmq_poller internally, but nof efficiently, because >>>>> it is being created on every call. This is why you have drop in >>>>> performance, I will fix that anyway. >>>>> >>>>> Polling on thread safe sockets works differently, this is why zmp >>>>> poller was created. previously zmp poll didnt support thread safe sockets. >>>>> >>>>> Bottom line, zmq poll should be deprecated and zmq poller should be >>>>> used. >>>>> >>>>> On Mar 10, 2017 3:13 PM, "brunobodin ." <[email protected]> wrote: >>>>> >>>>>> Doron, >>>>>> >>>>>> I could make a test and it works, thanks ! >>>>>> is the signaler new in zmq 4.2.2 ? if not, why are the performances >>>>>> so différent ? >>>>>> >>>>>> Regarding thread safe socket, I do not use them yet but may test them >>>>>> (probably RADIO/DISH) in a near future. Are there implications between >>>>>> poller and thread safe sockets ? >>>>>> >>>>>> thanks for your help >>>>>> >>>>>> Bruno >>>>>> >>>>>> On Fri, Mar 10, 2017 at 1:26 PM, Doron Somech <[email protected]> >>>>>> wrote: >>>>>> >>>>>>> If you can use zmq_poller it will solve it. >>>>>>> >>>>>>> I can make a PR to improve it by making tge creation of the signaler >>>>>>> lazy. >>>>>>> >>>>>>> Are you using thread safe sockets (SERVER CLIENT ...) >>>>>>> >>>>>>> On Mar 10, 2017 13:01, "brunobodin ." <[email protected]> wrote: >>>>>>> >>>>>>>> Hi all >>>>>>>> >>>>>>>> digging deeper, the issue seems related to the connect/bind of >>>>>>>> signaler within the poll function. >>>>>>>> >>>>>>>> On Fri, Mar 10, 2017 at 8:46 AM, brunobodin . <[email protected] >>>>>>>> > wrote: >>>>>>>> >>>>>>>>> Luca, >>>>>>>>> >>>>>>>>> thanks for you anwser... apparently select is the only method >>>>>>>>> available on windows, and is the one used by the appveyor build. >>>>>>>>> Draft is not enabled. >>>>>>>>> >>>>>>>>> still investigating... >>>>>>>>> >>>>>>>>> Regards >>>>>>>>> >>>>>>>>> Bruno >>>>>>>>> >>>>>>>>> On Thu, Mar 9, 2017 at 6:12 PM, Luca Boccassi < >>>>>>>>> [email protected]> wrote: >>>>>>>>> >>>>>>>>>> On Thu, 2017-03-09 at 17:22 +0100, brunobodin . wrote: >>>>>>>>>> > Hi all, >>>>>>>>>> > >>>>>>>>>> > I am in the process of migrating my application (windows, >>>>>>>>>> visual 2015) from >>>>>>>>>> > 4.1.2 to 4.2.2 >>>>>>>>>> > >>>>>>>>>> > The point is that with the new version, polling is now _very_ >>>>>>>>>> slow, making >>>>>>>>>> > my app quite unusable. >>>>>>>>>> > >>>>>>>>>> > Any hint or suggestion about what I could check ? The polling >>>>>>>>>> method is >>>>>>>>>> > "select", optimization options of the compiler are set, the >>>>>>>>>> performances of >>>>>>>>>> > the performance tools (inproc_lat, etc) are ok... >>>>>>>>>> > I do not know what to look for next... >>>>>>>>>> > >>>>>>>>>> > thanks >>>>>>>>>> > >>>>>>>>>> > Bruno >>>>>>>>>> >>>>>>>>>> Where you using select before as well? >>>>>>>>>> Are you by any chance building with the DRAFT APIs enabled? >>>>>>>>>> >>>>>>>>>> Kind regards, >>>>>>>>>> Luca Boccassi >>>>>>>>>> >>>>>>>>>> _______________________________________________ >>>>>>>>>> zeromq-dev mailing list >>>>>>>>>> [email protected] >>>>>>>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> zeromq-dev mailing list >>>>>>>> [email protected] >>>>>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>>>>>> >>>>>>> >>>>>>> _______________________________________________ >>>>>>> zeromq-dev mailing list >>>>>>> [email protected] >>>>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>>>>> >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> zeromq-dev mailing list >>>>>> [email protected] >>>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>>>> >>>>> >>>>> _______________________________________________ >>>>> zeromq-dev mailing list >>>>> [email protected] >>>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>>> >>>> >>>> >>>> _______________________________________________ >>>> zeromq-dev mailing list >>>> [email protected] >>>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>>> >>> >>> _______________________________________________ >>> zeromq-dev mailing list >>> [email protected] >>> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >>> >> >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> https://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >
_______________________________________________ zeromq-dev mailing list [email protected] https://lists.zeromq.org/mailman/listinfo/zeromq-dev
