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From: "Tung, Chien Tin" <chien.tin.tung-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: Andrea Gozzelino
	<Andrea.Gozzelino-PK20h7lG/Rc1GQ1Ptb7lUw@public.gmane.org>,
	"Hefty,
	Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: "dotanba-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
	<dotanba-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	"linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: RE: RDMA transfer speed performance test
Date: Fri, 9 Jul 2010 11:23:25 -0700	[thread overview]
Message-ID: <2EFBCAEF10980645BBCFB605689E08E9049293C736@azsmsx506.amr.corp.intel.com> (raw)
In-Reply-To: <8214320.1278667993311.SLOX.WebMail.wwwrun-XDIR3SKYeFbgKi2NxijLtw@public.gmane.org>

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> I know that RDMA is a protocol connected with 10 Gigabit/s Ethernet.
> How can I see this trasfer speed? Can you suggest the "path"?
> I attached the starting latency_RDMA.cpp code, which works with
> librdmacm version 1.0.12 with BUF_SIZE < = 64 bytes (thanks to Chien).
> I would like to explore transfer speed in range 1 bytes < BUF_SIZE < 4
> Mbytes.

In general, use larger message size, deeper queue and even multiple connections
to get better bandwidth numbers.  Look at rdma_bw for hints on how to do some of
those things.

Chien



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      parent reply	other threads:[~2010-07-09 18:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-09  9:33 RDMA transfer speed performance test Andrea Gozzelino
     [not found] ` <8214320.1278667993311.SLOX.WebMail.wwwrun-XDIR3SKYeFbgKi2NxijLtw@public.gmane.org>
2010-07-09 17:13   ` Hefty, Sean
     [not found]     ` <CF9C39F99A89134C9CF9C4CCB68B8DDF25A127CDC0-osO9UTpF0USkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2010-07-09 17:19       ` Hefty, Sean
2010-07-12 12:37       ` Andrea Gozzelino
2010-07-13  8:35       ` RDMA test performance comment Andrea Gozzelino
     [not found]         ` <3558891.1279010158142.SLOX.WebMail.wwwrun-XDIR3SKYeFbgKi2NxijLtw@public.gmane.org>
2010-07-13 16:55           ` Hefty, Sean
     [not found]             ` <CF9C39F99A89134C9CF9C4CCB68B8DDF25A1317C33-osO9UTpF0USkrb+BlOpmy7fspsVTdybXVpNB7YpNyf8@public.gmane.org>
2010-07-14 10:05               ` RDMA test performance comments (2) Andrea Gozzelino
2010-07-09 18:23   ` Tung, Chien Tin [this message]

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