From: Yuliang Li <yuliang.li@yale.edu>
To: users@dpdk.org
Subject: [dpdk-users] occasionally ~300us delay
Date: Wed, 28 Feb 2018 00:01:22 -0500 [thread overview]
Message-ID: <CAECc8johtEVEe5L8bwB1ZFFTPzPDQ22jKqYVLjVUfVDwFKV0ng@mail.gmail.com> (raw)
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
next reply other threads:[~2018-02-28 5:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 5:01 Yuliang Li [this message]
2018-02-28 5:03 ` Yuliang Li
2018-02-28 9:27 ` Gaëtan Rivet
2018-02-28 15:15 ` Stephen Hemminger
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