[dpdk-dev] Random numbers at line-rate

2014-07-21 Thread Chris Pappas
Hi, I need to generate a random number per packet and I used the rte_fast_rand function to do so. When I run the code for one port-core I get almost line-rate performance. However, running simultaneously on multiple cores degrades performance significantly. (in all cases I uses minimum-sized packe

[dpdk-dev] DPDK L2fwd benchmark with 64byte packets

2014-01-24 Thread Chris Pappas
this. 6Wind reports a platform limit of 160 Mpps, but we are below this with a similar platform. Is the bottleneck the PCIe? Thank you in advance for your time. Best regards, Chris Pappas

[dpdk-dev] L3FWD LPM IP lookup performance question

2013-09-26 Thread Chris Pappas
Hi, we are having some numbers regarding the performance of L3FWD and would like to confirm that they make sense. So, for L3FWD and 1500byte packets we get 120Gbps out of 12x10Gbps ports (so we get full throughput) and for 64byte packets we get 80Gbps. According to Intel documentation [1] these n

[dpdk-dev] Question regarding throughput number with DPDK l2fwd with Wind River System's pktgen

2013-09-22 Thread Chris Pappas
Hi, We have a question about the performance numbers we are getting measured through the pktgen application provided by Wind River Systems. The current setup is the following: We have two machines, each equipped with 6 dual-port 10 GbE NICs (with a total of 12 ports). Machine 0 runs DPDK L2FWD co