[zeromq-dev] epgm performance numbers

Rohan Bedarkar r_bedarkar at yahoo.com
Thu Oct 25 18:28:55 CEST 2012

Hi Steven

I tried numbers like 10,000 and even then it took almost 7 seconds. 

It seems the throughput is the bottleneck here.... Thoughts? Do I need PGM tweeking? 

 Transport:                     ZMQ
 Protocol:                      epgm
 Messages recd:                 10000
 Total Time:                    7930204 us   
 Throughput:                    0.15132 Mbps 
 Avg per msg:                   793.02 us   

Ours is a gigabit network so 160us to 200us round trip for individual messages looks ok right?


Rohan Bedarkar
MS, Computer Science 

University of Chicago
rohanb at cs.uchicago.edu


 From: Steven McCoy <steven.mccoy at miru.hk>
To: Rohan Bedarkar <r_bedarkar at yahoo.com>; ZeroMQ development list <zeromq-dev at lists.zeromq.org> 
Sent: Thursday, October 25, 2012 11:09 AM
Subject: Re: [zeromq-dev] epgm performance numbers

On 25 October 2012 11:38, Rohan Bedarkar <r_bedarkar at yahoo.com> wrote:

 Messages recd:           1000

That's a really small amount of messages to test a transport that can handle 100,000+ per second.

 Average / message:        168.421 us   
 Max time:                      200 us   
> Min time:                      160 us                                                            

One-way latency for datagrams is 80-90µs with most gigabit networks, you need 10 GigE or InfiniBand for lower latencies.

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