[zeromq-dev] Performance measurements question
E.W.Z.
kreuzerkrieg at gmail.com
Thu May 3 17:11:40 CEST 2018
Thanks! Things are clearer now
Sent from Mail for Windows 10
From: Luca Boccassi
Sent: Thursday, May 3, 2018 4:44 PM
To: ZeroMQ development list
Subject: Re: [zeromq-dev] Performance measurements question
I would say the overhead is non measurable due to other external,
dominant factors.
There is definitely an additional overhead from a protocol with a
handshake on top of TCP compared to simple ICMP. That result just means
there is something else which is the dominant factor.
On Thu, 2018-05-03 at 16:13 +0300, Ernest Zed wrote:
> If I get ping ~50us and zmq performance reports ~50us it means that
> zmq has
> virtually zero overhead, right?
>
> On Thu, May 3, 2018 at 4:05 PM, Luca Boccassi <luca.boccassi at gmail.co
> m>
> wrote:
>
> > On Thu, 2018-05-03 at 15:44 +0300, Ernest Zed wrote:
> > > Hi All,
> > > I'm running performance tests in accordance with this document
> > > http://zeromq.org/results:perf-howto
> > >
> > > It is stated that the latency measured just one-way. I guess this
> > > document
> > > is very old and I wanted to ask it is still holds true.
> >
> > The measuring code is very simple, I suggest to just look at it.
> > The latency is measured for a roundtrip.
> >
> > > Second, what is the
> > > expected overhead of zmq? For example, if I ping one machine from
> > > the
> > > second one and get, say, 50us, what is the latency I could expect
> > > from zmq
> > > when running local/remote_lat test? 25, 50, 100, 200us?
> > >
> > > Sincerely,
> > > Ernest
> >
> > The environment can vary the performances, so you should simply
> > measure
> > it and see what's it like with your hardware and network.
> >
> > --
> > Kind regards,
> > Luca Boccassi
> > _______________________________________________
> > zeromq-dev mailing list
> > zeromq-dev at lists.zeromq.org
> > https://lists.zeromq.org/mailman/listinfo/zeromq-dev
> >
> >
>
> _______________________________________________
> zeromq-dev mailing list
> zeromq-dev at lists.zeromq.org
> https://lists.zeromq.org/mailman/listinfo/zeromq-dev
--
Kind regards,
Luca Boccassi
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.zeromq.org/pipermail/zeromq-dev/attachments/20180503/9ac647b2/attachment.htm>
More information about the zeromq-dev
mailing list