I'm using RC QP connection but data in the buffer on receive side changes without any actions (ibv_post_recv) on receive side. I'm tried to use multiple buffers to send/recv data frames but on receive side only ONE buffer (first registered with ibv_reg_mr) works. I don't found any examples where used a pool of buffers for receive side (for sender it is). Would you help me in such things?
Thanks. Zh.Sergey From: Leonid Keller [mailto:[email protected]] Sent: Wednesday, November 25, 2009 11:25 AM To: Сергей Жуков; Tzachi Dar Cc: [email protected] Subject: RE: [ofw] Need code examples 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: [email protected] [mailto:[email protected]] On Behalf Of ?????? ????? Sent: Wednesday, November 25, 2009 9:21 AM To: Tzachi Dar Cc: [email protected] 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:[email protected]] 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 _____ From: [email protected] [mailto:[email protected]] On Behalf Of Leonid Keller Sent: Thursday, November 19, 2009 11:28 AM To: Сергей Жуков Cc: [email protected] 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:[email protected]] Sent: Thursday, November 19, 2009 11:15 AM To: Leonid Keller Cc: [email protected] 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:[email protected]] Sent: Thursday, November 19, 2009 12:06 PM To: Сергей Жуков; [email protected] Subject: RE: [ofw] Need code examples tools\perftests or test\perftest in IB source tree _____ From: [email protected] [mailto:[email protected]] On Behalf Of ?????? ????? Sent: Thursday, November 19, 2009 8:51 AM To: [email protected] 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 _____ avast! Antivirus <http://www.avast.com> : Ishodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091118-1, 18.11.2009 Provereno: 19.11.2009 9:50:43 avast! - (c) 1988-2009 ALWIL Software. _____ avast! Antivirus <http://www.avast.com> : Vhodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091118-1, 18.11.2009 Provereno: 19.11.2009 12:06:47 avast! - (c) 1988-2009 ALWIL Software. _____ avast! <http://www.avast.com> Antivirus: Ishodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091118-1, 18.11.2009 Provereno: 19.11.2009 12:14:52 avast! - (c) 1988-2009 ALWIL Software. _____ avast! <http://www.avast.com> Antivirus: Vhodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091119-0, 19.11.2009 Provereno: 19.11.2009 16:09:09 avast! - (c) 1988-2009 ALWIL Software. _____ avast! Antivirus <http://www.avast.com> : Ishodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091124-1, 24.11.2009 Provereno: 25.11.2009 10:21:05 avast! - (c) 1988-2009 ALWIL Software. _____ avast! Antivirus <http://www.avast.com> : Vhodjashaja soobshenie chistoje. Virusnaja baza dannih (VPS): 091124-1, 24.11.2009 Provereno: 25.11.2009 11:36:24 avast! - (c) 1988-2009 ALWIL Software. --- avast! Antivirus: Ishodjashaja soobshenie chistoje: Virusnaja baza dannih (VPS): 091125-0, 25.11.2009 Provereno: 25.11.2009 11:56:22 avast! - (c) 1988-2009 ALWIL Software. http://www.avast.com
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