<div dir="ltr"><div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:rgb(11,83,148)">Hi all,<br><br></div><div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:rgb(11,83,148)">Is there anyone around that is using IB FDR and running an iperf between two hosts on the same net, are getting more than 24Gbits/sec? I'm running in an Ubuntu server and I'm not able to get more than that, also I've already try changing the mode from datagram to connected, connected is working way better, and also changed and try many different MTUs.<br><br># mlnx_tune -r -c<br><br>Mellanox Technologies - System Report<br><br>Operation System Status<br><b>UBUNTU14.04<br>3.19.0-25-generic</b><br><br>CPU Status<br>Intel Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz Ivy Bridge<br>OK: Frequency 3000.156MHz<br><br>Hyper Threading Status<br>ACTIVE<br><br>IRQ Balancer Status<br>INACTIVE<br><br>Driver Status<br><b>OK: MLNX_OFED_LINUX-3.1-1.0.3 (OFED-3.1-1.0.3)</b><br><br>ConnectX-3 Device Status on PCI 04:00.0<br>FW version 2.35.5100<br>OK: PCI Width x8<br>OK: PCI Speed 8GT/s<br>PCI Max Payload Size 256<br>PCI Max Read Request 512<br>Local CPUs list [0, 1, 2, 3, 4, 5, 6, 7, 16, 17, 18, 19, 20, 21, 22, 23]<br><br>ib0 (Port 1) Status<br>Link Type ib<br>OK: Link status Up<br>MTU 65520<br><br>ib1 (Port 2) Status<br>Link Type ib<br>OK: Link status Up<br>MTU 65520<br><br><br></div><div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:rgb(11,83,148)">Can anyone share some perf values and config tips in order to get the most on this? I know that a lot will depend on the OS configuration, since if I run a ib_send_bw I almost get 6Gb/s.<br><br></div><div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:rgb(11,83,148)">Thanks in advance,<br><br></div><div class="gmail_default" style="font-family:monospace,monospace;font-size:small;color:rgb(11,83,148)">Best,<br><br clear="all"></div><div><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><span><div><div dir="ltr"><p><b><span style="font-size:10pt;font-family:Trebuchet MS,sans-serif;color:rgb(68,68,68)"></span></b></p><span style="color:rgb(68,68,68)"><span style="font-family:trebuchet ms,sans-serif"><font size="2"><b>German</b></font></span></span><span style="color:rgb(68,68,68)"><span style="font-family:trebuchet ms,sans-serif"></span></span></div></div></span></div></div></div></div></div>
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