[dpdk-users] occasionally ~300us delay

[Yuliang Li]

Hi all,

I am using dpdk to generate packets. Specifically, I have a list of <packet
Pi, time Ti>, meaning I want to send Pi at Ti. I wait for Ti by while
(rte_get_tsc_cycles()<Ti). However, sometimes I see a delay of around 300us
of sending packets, i.e., the sending time of some Pi is around Ti+300us.
It looks like the program just pauses by 300us, and then resumes. Does
anyone know why?

Thanks,
-- 
Yuliang Li
PhD student
Department of Computer Science
Yale University