I'll switch to Java binding to avoid possible problems like this. Thank you, guys.
On 2012-02-03, at 5:01 PM, Joshua Foster wrote: > Polling is supposed to be a non-busy wait so there should not be any CPU > usage while waiting on the sockets. I know this works on the Java version. > > Joshua > > On 2/3/2012 4:25 PM, Sergey Malov wrote: >> I've checked it with different version of Scala 0mq binding, and it behaves >> as expected: setting polling time to 0.5sec decrease CPU usage to almost >> zero. >> It seems version I used before (0.0.4) has a polling bug. >> >> On 2012-02-03, at 2:40 PM, Chuck Remes wrote: >> >>> On Feb 3, 2012, at 1:36 PM, Sergey Malov wrote: >>> >>>> Hi, >>>> I have an application using three different 0mq socket types: >>>> - PULL, to receive protocol buffer messages from outside for further >>>> processing, >>>> - PUB, to publish results (in protocol buffer format as well) >>>> - REPLY, to occasionally answer on status query, etc >>>> >>>> All sockets are being polled in single cycle. It's a Scala application, >>>> using scala zeromq binding, and 2.1.11 0mq library. >>>> What I observe, being idle this app still utilizes more than 100-120% CPU >>>> on 4-cores linux box (using top utility). Under "idle" I mean that it is >>>> started and polling sockets, but notching is there to pull/publish. >>>> I played with setting timeout (using setTimeout on poller), latest I've >>>> set was to 2000000 microseconds, with no obvious effect on CPU usage. I >>>> know that most of the time it spends polling, since I monitor it with >>>> profiler. >>>> >>>> Is it normal, such a high CPU utilization? Is there anything wrong with >>>> what I'm doing? Something I should check/set ? >>> Try setting the timeout period to 1 second. If you still see high CPU then >>> it's likely a bug in the Scala or Java binding. With a 1s timeout, cpu >>> utilization should be 0. >>> >>> cr >>> >>> >>> _______________________________________________ >>> zeromq-dev mailing list >>> zeromq-dev@lists.zeromq.org >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> _______________________________________________ >> zeromq-dev mailing list >> zeromq-dev@lists.zeromq.org >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > _______________________________________________ > zeromq-dev mailing list > zeromq-dev@lists.zeromq.org > http://lists.zeromq.org/mailman/listinfo/zeromq-dev _______________________________________________ zeromq-dev mailing list zeromq-dev@lists.zeromq.org http://lists.zeromq.org/mailman/listinfo/zeromq-dev
