[dpdk-dev] measuring latency with pktgen <=> l2fwd

2014-01-28 Thread Jun Han
Hi all, Does anyone know if there is a way to measure the round trip latency between pktgen and l2fwd? If not, is there a way to add timestamps to measure latency? Our current setup is: Machine A runs DPDK pktgen and is connected back-to-back with Machine B running l2fwd. Thank you. Jun

[dpdk-dev] Measuring latency

2013-11-25 Thread Jun Han
Hi, Does anyone know if there is a DPDK provided tool to measure latency of a packet traversal (i.e., when a packet is copied from the NIC to userspace)? Also, we are using rdtsc to measure processing delay in the userspace currently, but does anyone else have suggestions/experiences for other too