> On Jul 21, 2017, at 10:11 AM, Paul Tsvika <[email protected]> wrote: > > Hi developers,
Attachements at scrubbed from emails to the list, so best to add links or inline the text. What is the core layout for your system. Can you run the cpu-layout.py tool. > > Below is my hardware configuration: > > Memory: 32G ( 16 G on two channels ) > CPU: Xeon-D 1557 ( 12 cores, hyperthreading - 24 core ) > NIC: Intel X552/X557 10GBASE-T > > My motherboard has 2 10G ports so that I set up the testing experiment in > loopback. > > I have compiled DPDK successfully and below is the steps how I configured > pktgen > > $ sudo modprobe uio > $ sudo insmod ./build/kmod/igb_uio.ko > $ sudo ./usertools/dpdkdevbind.py -b igb_uio xxx:xx.0 xxx:xx.1 > $ sudo ./app/pktgen -c 0x1f -n 2 -- -P -m "[1:3].0, [2:4].1" > <pktgen> start 0 > > I use core 1 and core 3 work for port 0 tx/rx respectively. Core 2 and core > 4 work for port 1 tx/rx respectively. > > I have some questions listed below: > > 1. > ( check my attachment d2.png ) > The TX rate is almost 10G, however, the RX rate is much lower than TX rate. > I suppose this should not happen. Is my configuration wrong in any place ? > I checked other developers and TX rate normally can reach 999x and RX rate > is almost the same as TX rate. > > 2. > > Please check the attachment ( start_log ). > > 2.1 > *Packet Burst 32, RX Desc 512, TX Desc 1024*, mbufs/port 8192, mbuf cache > 1024 > Is 32 the default packet size ? How can I configure it to 64 ? > Why RX Desc is different to TX Desc ? > > 2,2 > *Port 0: Link Down <Enable promiscuous mode>* > Port 1: Link Up - speed 10000 Mbps - full-duplex <Enable promiscuous mode> > > Port 0 is down at some points, how can I check the root cause to this issue? > > > > Thanks > > -- > P.T > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: d2.png > Type: image/png > Size: 108971 bytes > Desc: not available > URL: > <http://dpdk.org/ml/archives/users/attachments/20170721/c22e7dbe/attachment.png> Regards, Keith
