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Date: Wed, 10 Apr 2013 12:28:59 -0400
From: "Michael R. Hines" <mrhines@linux.vnet.ibm.com>
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Subject: Re: [Qemu-devel] [PATCHv2] rdma: add a new IB_ACCESS_GIFT flag
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Roland Dreier <roland@kernel.org>, qemu-devel@nongnu.org, "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>, Yishai Hadas <yishaih@mellanox.com>, LKML <linux-kernel@vger.kernel.org>, Hal Rosenstock <hal.rosenstock@gmail.com>, Jason Gunthorpe <jgunthorpe@obsidianresearch.com>, Sean Hefty <sean.hefty@intel.com>, Christoph Lameter <cl@linux.com>

On 04/10/2013 11:05 AM, Michael S. Tsirkin wrote:
> On Wed, Apr 10, 2013 at 11:48:24AM -0400, Michael R. Hines wrote:
>> There's a very nice, simple client/server RDMA application on the
>> internet you can use to test your patch.
>>
>> http://thegeekinthecorner.wordpress.com/2010/09/28/
>> rdma-read-and-write-with-ib-verbs/
>>
>> This guy provides the source code which dumps several gigabytes over RDMA
>> to the other side.
>>
>> There's no need to run QEMU to test your patch,
>> assuming you have access to infiniband hardware.
>>
>> - Michael
>
> Does this app have any COW pages?

It can easily be made to be. It's just a couple of C source files.

I've only used it for basic testing.