Hi Martin, I cannot debug the library on windows, so i can't help you But i think it's a bug. I try to change the RATE parameter, but i have the same result the message are accumulate on the sender. I try also RATE=-1 , is accepted, no error. I have only a error when a set RATE=0, but the error is intercepted not on zmq_setsockopt, but at zmq_connect command !!! I hope can help you
GB Il 19/04/2010 15.31, Martin Sustrik ha scritto: > Hi Giambattista, > > >> I'm trying the 2.0.6 version, but i have a strange behavior. >> I start the test on my development workstation (WIN7 quad core 2.66GHZ 2 >> GB RAM LAN 100Mb) >> i start sender and receiver with pgm configuration, use a 8.000 msg/sec >> rate, the LAN is 22 Mb/sec, all work fine. >> I start the same test on a new workstation (WINVISTA quad core 2.66GHZ 2 >> GB RAM LAN 100Mb) but the application receiver is slow, receive 6 >> mb/sec, the msg are not discarded, but are accumulated on the sender, i >> see the sender memory from task manager to increase , more and more and >> then is 400 MB I stop the sender. >> > The messages should accumulate on the sender only in the case when you > are publishing faster than the current RATE. Unless it's a bug of course... > > >> The receiver always receive data, I wait for several minutes ,at the end >> receive all the data but the rate is very very slow. >> At application level, i have set ZMQ_RATE to 100000 on both sender and >> receiver. >> > The behaviour looks almost as if RATE was low. Strange. > > >> To understand this behavior, i start this simulation: >> On my workstation start only the sender without receiver on all the LAN. >> The application work fine, start publish the memory usage increase to >> 145 MB, but after never increase more (i see on task manager that the >> application create 4 thread, after become 7 and at the end are stable to >> 4).The send rate and conditions are the same of previus test. >> > That looks like you are publishing at a rate lower than ZMQ_RATE. > OpenPGM's window fills up to the limit and doesn't grow anymore. > > >> I do the same test on second workstation, and in this case the memory >> increase to infinite , i stop the application to 800MB of RAM. >> in task manager i see always 3 thread started by the application. >> > That looks like you are publishing at a rate higher than ZMQ_RATE. In > such a case messages are queued on the sender side. > > >> If i use TCP transport, on both the workstation all work fine. >> > That's expected. TCP has congestion control mechanism so the receiver > can control the rate at which the sender is sending data. > > >> Can help me to understand this behavior? >> It's a workstation problems? >> It's a workstation problems with pgm? >> it's a problem of the pgm? >> > It's hard to say from here. Some of the behaviour looks like it may be > correct. Consumer consuming 6Mb/s when rate is set at 100Mb/s and sender > is publishing at 100Mb/s looks like a bug. > > Martin > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > > > _______________________________________________ zeromq-dev mailing list [email protected] http://lists.zeromq.org/mailman/listinfo/zeromq-dev
