[ofw] Need code examples

[Leonid Keller]

It's not a real application.
It's a performance test, demonstrating a possibilty of IB HW to send data at > 4GBps.
That's why it is using only one buffer.
That's why it doesn't care about synchronization.
 
But you may write a real application working almost as fast as this one.
You will have to use a pool of buffers and RC QP connection.
If the receiver side won't manage to read the data, it won't post receive WQEs, making thereby a back pressure on the sender.


________________________________

	From: ofw-bounces at lists.openfabrics.org [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of ?????? ?????
	Sent: Wednesday, November 25, 2009 9:21 AM
	To: Tzachi Dar
	Cc: ofw at lists.openfabrics.org
	Subject: RE: [ofw] Need code examples
	
	

	Hello Tzachi!

	 

	I have tried to use sources from latest SVN and have deal with send_bw example. In this example I have inserted 2 bytes frame counter for receiving control.

	I found out that on receive side there is no syncronization between write/read operations. Sending side writing frames in the shared memory

	(ctx->buff) on receive side while previous frames are not read yet.

	 

	 

	Thanks.

	Zh.Sergey.

	 

	 

	From: Tzachi Dar [mailto:tzachid at mellanox.co.il] 
	Sent: Thursday, November 19, 2009 4:06 PM
	To: Сергей Жуков
	Subject: RE: [ofw] Need code examples

	 

	Please let me know if you need more help.

	 

	Thanks

	Tzachi

		 

		
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		From: ofw-bounces at lists.openfabrics.org [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of Leonid Keller
		Sent: Thursday, November 19, 2009 11:28 AM
		To: Сергей Жуков
		Cc: ofw at lists.openfabrics.org
		Subject: RE: [ofw] Need code examples

		I meant  openfabric stack.

		As Sean mentioned, it is found under svn://openib.tc.cornell.edu/gen1/trunk.

		We provide usually only binaries, but we have the same sources as openfabric stack, so you can look there.

			 

			
________________________________


			From: Сергей Жуков [mailto:zhukoff79 at mail.ru] 
			Sent: Thursday, November 19, 2009 11:15 AM
			To: Leonid Keller
			Cc: ofw at lists.openfabrics.org
			Subject: RE: [ofw] Need code examples

			Thanks but where I can get it?

			In my distrib pack (MLNX_WinOF_wnet_x64_2_0_3) there is no such dirs.

			How I cat get perftests from IB source tree?

			 

			From: Leonid Keller [mailto:leonid at mellanox.co.il] 
			Sent: Thursday, November 19, 2009 12:06 PM
			To: Сергей Жуков; ofw at lists.openfabrics.org
			Subject: RE: [ofw] Need code examples

			 

			tools\perftests or test\perftest in IB source tree

				 

				
________________________________


				From: ofw-bounces at lists.openfabrics.org [mailto:ofw-bounces at lists.openfabrics.org] On Behalf Of ?????? ?????
				Sent: Thursday, November 19, 2009 8:51 AM
				To: ofw at lists.openfabrics.org
				Subject: [ofw] Need code examples

				Hello!

				 

				Is there developers who wrote applications with RDMAoIB support and can help me in such things? I need for source examples that do send/recv with high perfomance and throughoutput on IB.

				 

				Best regards.

				Zh. Sergey

				 

				 

				 

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