From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Dmitry Vyal <dmitryvyal@gmail.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] DPDK delaying individual packets infinitely
Date: Thu, 2 Jan 2014 14:59:38 +0100 [thread overview]
Message-ID: <201401021459.38669.thomas.monjalon@6wind.com> (raw)
In-Reply-To: <52A1CF9D.30708@gmail.com>
Hello Dmitry,
06/12/2013 14:22, Dmitry Vyal :
> The application consists of two threads, first one sends the packets
> from one port and second receives them on another. These are 2 ports of
> four-ports 1Gb NIC. It's detected as Intel Corporation 82576 Gigabit
> Network Connection (rev 01). Ports are connected with a patch cord.
[...]
> So looks like DPDK is buffering first 21 packets and doesn't flush the
> buffer in the first run even if I wait for several seconds after last
> packet is sent. In second run we see it forwards packets one by one
> after first burst of size 21.
>
> I tried on DPDK-1.3.1 and DPDK-1.5.1 observing similar results. Is it
> expected behavior?
Have you made any progress on this bug ?
Is it an igb-specific issue ? Can you reproduce it with ixgbe ?
Thank you to keep us informed
--
Thomas
next prev parent reply other threads:[~2014-01-02 13:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-06 13:22 Dmitry Vyal
2014-01-02 13:59 ` Thomas Monjalon [this message]
2014-01-02 16:43 ` Stephen Hemminger
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