From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gandalf Corvotempesta Subject: Re: Slow performance with librspreload.so Date: Fri, 30 Aug 2013 10:19:00 +0200 Message-ID: References: <1828884A29C6694DAF28B7E6B8A8237388CA937E@ORSMSX109.amr.corp.intel.com> <1828884A29C6694DAF28B7E6B8A8237388CA96AD@ORSMSX109.amr.corp.intel.com> <1828884A29C6694DAF28B7E6B8A8237388CA9865@ORSMSX109.amr.corp.intel.com> <1828884A29C6694DAF28B7E6B8A8237388CA9C6B@ORSMSX109.amr.corp.intel.com> <1828884A29C6694DAF28B7E6B8A8237388CA9D8A@ORSMSX109.amr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: In-Reply-To: <1828884A29C6694DAF28B7E6B8A8237388CA9D8A-P5GAC/sN6hkd3b2yrw5b5LfspsVTdybXVpNB7YpNyf8@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "Hefty, Sean" , "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-rdma@vger.kernel.org 2013/8/29 Hefty, Sean : > 12 Gbps on a 20 Gb link actually seems reasonable to me. I only see around 25 Gbps on a 40 Gb link, with raw perftest performance coming in at about 26 Gbps. Is this a rstream limits or an IB limit? I've read somewhere that DDR should transfer at 16Gbps By the way, moving the HBA on the second slot, brought me to 12Gbps on both hosts. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html