> On Jan 13, 2018, at 12:51 PM, Shailja Pandey <csz168...@iitd.ac.in> wrote: > > Hi, > > Output of command ‘lspci | grep Ether’ is- > > 04:00.0 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit > X540-AT2 (rev 01) > 04:00.1 Ethernet controller: Intel Corporation Ethernet Controller 10-Gigabit > X540-AT2 (rev 01) > 05:00.0 Ethernet controller: Intel Corporation Ethernet Controller XL710 for > 40GbE QSFP+ (rev 02) > 05:00.1 Ethernet controller: Intel Corporation Ethernet Controller XL710 for > 40GbE QSFP+ (rev 02) > > I tried running pktgen with this command > ./app/app/x86_64-native-linuxapp-gcc/pktgen -c 0xffff -n 4 -- -T -P -m > “[2,4,6:8,10,12].0, [14,16,18:20,22,24].1”
Need to blacklist 04:00.0 and 04:00.1 using -b 04:00.0 -b 04:00.1 just before the '--' > > but I am unable to see the ports while using comma separated cores like > 2,4,6. However when I tried with multiple CPUs, the result is still the same. > > After allocating multiple cores, I also tried the range commands to > distribute the packets on different cores(RSS). > > > > > On Jan 11, 2018, at 12:45 AM, Shailja Pandey <csz168117 at iitd.ac.in > > wrote: > > > > > > > > I have also tried with multiple cpus using the command line- > > > > > > > > ./app/app/x86_64-native-linuxapp-gcc/pktgen -c 0xffff -n 4 -- -T -P -m > "[0:4].0,[5:8].1,[9-12].2,[13-16].3” > > > What is port 0 and 1, I guess that port 2 and 3 are the 2x40 card. I guess I > need the ‘lspci | grep Ether’ output too. > > Lets assume port 2 and 3 are the 2 ports of 40G and the NIC is on PCI bus0 > attached to NUMA node 0. > > May need to blacklist the first two port 0 and 1 to remove them from being > used. > > ./app/app/x86_64-native-linuxapp-gcc/pktgen -c 0xffff -n 4 -- -T -P -m > “[2,4,6:8,10,12].0, [14,16,18:20,22,24].1” > > Now you have 6 cores per port 3 on TX and 3 on RX on each port. You maybe be > able to get away with 4 per port with the speed of the machine you have. > > Next we have to use the range command to make sure the packets are > transmitted with a varying set of 5 tuples. > > Do a help command an look at the range commands, there is an example in the > test directory. > > To see the range information use ‘page range’ and then you can modify each > port. > > After you are happy with the configuration use the ‘save <filename>’ command > to save the configuration. Then you can use ‘load <filename>’ or add it to > the command line with the -f <filename> option. > > > > > > > > > > > On Thursday 11 January 2018 10:20 AM, Shailja Pandey wrote: > > >> > The command line for Pktgen is- > > >> > > > >> > ./app/app/x86_64-native-linuxapp-gcc/pktgen -c 0xfff -n 4 -- -T -P -m > "[2].0,[4].1,[8].2,[10].3" > > >> > > > >> > Configuration of the machine is- > > >> > > > >> > Architecture: x86_64 > > >> > CPU op-mode(s): 32-bit, 64-bit > > >> > Byte Order: Little Endian > > >> > CPU(s): 32 > > >> > On-line CPU(s) list: 0-31 > > >> > Thread(s) per core: 2 > > >> > Core(s) per socket: 8 > > >> > Socket(s): 2 > > >> > NUMA node(s): 2 > > >> > Vendor ID: GenuineIntel > > >> > CPU family: 6 > > >> > Model: 63 > > >> > Model name: Intel(R) Xeon(R) CPU E5-2640 v3 @ 2.60GHz > > >> > Stepping: 2 > > >> > CPU MHz: 1204.226 > > >> > CPU max MHz: 3400.0000 > > >> > CPU min MHz: 1200.0000 > > >> > BogoMIPS: 5195.08 > > >> > Virtualization: VT-x > > >> > L1d cache: 32K > > >> > L1i cache: 32K > > >> > L2 cache: 256K > > >> > L3 cache: 20480K > > >> > NUMA node0 CPU(s): 0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30 > > >> > NUMA node1 CPU(s): 1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31 > > >> > > > >> > Linux XeonE5 4.4.0-93-generic > > >> > > > >> > Thanks! > > >> > > > >> > > > >> > > > >> > > > >> > > > >> > > > > >> > On Jan 10, 2018, at 7:36 AM, Shailja Pandey <csz168117 at iitd.ac.in > > >> > > wrote: > > >> > > > >> > > > > >> > > > >> > > > >> > > > > >> > Hi, > > >> > > > >> > > > > >> > > > >> > > > >> > > > > >> > We are performing experiments on Dell Poweredge R430 server, which is based > on Haswell architecture based xeon-2640 v3 processor. We have attached XL 710 > NIC(2x40 GbE) to the machine and expect 59 Mpps packet generation per port. > But pktgen is able to generate only 21 Mpps per port and we are not sure > about the problem. > > >> > > > >> > > > > >> > > > >> > > > >> > > > > >> > We are using DPDK version 16.07 and DPDK-pktgen version 3.1.0. Is there any > way to generate packets from pktgen at 118 Mpps ? > > >> > > > >> > > > >> > What is the command line for Pktgen? > > >> > > > >> > Using a single CPU you should be able to generate about 21Mpps, which tells > me the configuration is not correct. > > >> > > > >> > Pktgen needs N number of TX and RX cores to generate more traffic, plus the > packets need to be spread across the cores using RSS. This means pktgen needs > to be setup to generate packets with the 5 tuple difference to get all of the > cores to receive the packets. > > >> > > > >> > I need to know the command line and the configuration of the machine to help. > > >> > > > > >> > > > >> > > > >> > > > > >> > -- > > >> > > > >> > > > > >> > > > >> > > > >> > > > > >> > Thanks, > > >> > > > >> > > > > >> > Shailja > > >> > > > >> > > > > >> > > > >> > > > >> > > > >> > Regards, > > >> > Keith > > >> > > > >> > -- > > >> > > > >> > Thanks, > > >> > Shailja > > >> > > > > > > > > > -- > > > > > > > > Thanks, > > > > Shailja > > > > > > > Regards, > Keith > > -- > > Thanks, > Shailja > Regards, Keith
