From: Yuliang Li <yuliang.li@yale.edu>
To: users@dpdk.org
Subject: Re: [dpdk-users] occasionally ~300us delay
Date: Wed, 28 Feb 2018 00:03:30 -0500 [thread overview]
Message-ID: <CAECc8jpQGD3tXNED8vkbaP1K2u68Oz3qwKVv32RMGZA=3PD28w@mail.gmail.com> (raw)
In-Reply-To: <CAECc8johtEVEe5L8bwB1ZFFTPzPDQ22jKqYVLjVUfVDwFKV0ng@mail.gmail.com>
Also, such pause happens regularly--every 0.5s.
On Wed, Feb 28, 2018 at 12:01 AM, Yuliang Li <yuliang.li@yale.edu> wrote:
> 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
>
--
Yuliang Li
PhD student
Department of Computer Science
Yale University
next prev parent reply other threads:[~2018-02-28 5:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-28 5:01 Yuliang Li
2018-02-28 5:03 ` Yuliang Li [this message]
2018-02-28 9:27 ` Gaëtan Rivet
2018-02-28 15:15 ` Stephen Hemminger
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