[rabbitmq-discuss] (no subject)

Tue Dec 7 13:55:51 GMT 2010

Hi,
The average latency for RabbitMQ seems very high compared to the minimum. Are there any OS settings for Linux which could be set to improve those values?
Latency would be critical for the application I am working on
Regards
David

> Date: Tue, 7 Dec 2010 11:59:48 +0000
> Subject: Re: [rabbitmq-discuss] (no subject)
> From: majek04 at gmail.com
> To: david.j.odonnell at hotmail.com
> CC: rabbitmq-discuss at lists.rabbitmq.com
> 
> Over the gigabit network:
> 
> $ ./runjava.sh com.rabbitmq.examples.MulticastMain -a -s 400 -r 15000
> -h thehost
> recving rate: 12918 msg/s, min/avg/max latency: 304/21486/66140 microseconds
> sending rate: 15000 msg/s, basic returns: 0 ret/s
> recving rate: 14990 msg/s, min/avg/max latency: 325/1140/2860 microseconds
> sending rate: 14986 msg/s, basic returns: 0 ret/s
> recving rate: 14997 msg/s, min/avg/max latency: 318/1237/9002 microseconds
> sending rate: 15000 msg/s, basic returns: 0 ret/s
> recving rate: 14992 msg/s, min/avg/max latency: 293/1337/10389 microseconds
> sending rate: 15000 msg/s, basic returns: 0 ret/s
> recving rate: 15002 msg/s, min/avg/max latency: 299/1327/5307 microseconds
> sending rate: 15000 msg/s, basic returns: 0 ret/s
> recving rate: 15007 msg/s, min/avg/max latency: 314/1193/3290 microseconds
> sending rate: 15000 msg/s, basic returns: 0 ret/s
> 
> On Tue, Dec 7, 2010 at 11:57, Marek Majkowski <majek04 at gmail.com> wrote:
> > Ubuntu 10.10,
> > cat /proc/cpuinfo
> > model name      : Intel(R) Xeon(R) CPU           E5520  @ 2.27GHz
> >
> > $ sh ./runjava.sh com.rabbitmq.examples.MulticastMain -a -s 4000 -r 10000
> > recving rate: 10000 msg/s, min/avg/max latency: 214/858/6136 microseconds
> > sending rate: 10000 msg/s, basic returns: 0 ret/s
> > recving rate: 10000 msg/s, min/avg/max latency: 207/857/3961 microseconds
> > sending rate: 9995 msg/s, basic returns: 0 ret/s
> > recving rate: 9991 msg/s, min/avg/max latency: 182/955/5731 microseconds
> > sending rate: 10000 msg/s, basic returns: 0 ret/s
> >
> > So, for localhost. Min: 0.2ms, avg: 0.8-0.9ms
> >
> > On Tue, Dec 7, 2010 at 11:53, David ODonnell
> > <david.j.odonnell at hotmail.com> wrote:
> >> Hi,
> >> Thanks for the info.
> >> Yeah ran that program previosly but was getting a minimum latency of 7ms.
> >> Has anyone got latencies <1m and if so what was their h/w setup ?
> >> Thanks
> >> David
> >>
> >> _______________________________________________
> >> rabbitmq-discuss mailing list
> >> rabbitmq-discuss at lists.rabbitmq.com
> >> https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
> >>
> >>
> >

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