From: Eric Dumazet <eric.dumazet@gmail.com>
To: Kieran Kunhya <kierank@ob-encoder.com>
Cc: netdev@vger.kernel.org
Subject: Re: bnx2 udp multicast packet loss and jtter
Date: Fri, 17 Jun 2011 17:30:41 +0200 [thread overview]
Message-ID: <1308324641.3539.1.camel@edumazet-laptop> (raw)
In-Reply-To: <BANLkTimCgWSANaje4aBE5gQdwKWNRJX40A@mail.gmail.com>
Le samedi 11 juin 2011 à 15:32 +0100, Kieran Kunhya a écrit :
> Hello,
>
> I get some bad packet loss and high jitter on a BCM5709. This is on
> kernel 2.6.38-8 - unfortunately using a newer kernel isn't an option
> right now.
> The bnx2 driver is version v2.0.23b.
>
> I've tried a lot of kenel types such as -lowlatency, -ck and vanilla.
> The thread doing the udp output is at realtime priority and the same
> thing happens with different applications.
>
> Example of jitter
> http://dl.dropbox.com/u/2701213/jitter.png
>
> Is there anything I can do to further diagnose this problem?
>
Hi
How is this jitter measured ?
Is the link otherwise idle, or do you have a particular qdisc setup to
make sure packets from other flow wont have an effect ?
next prev parent reply other threads:[~2011-06-17 15:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-11 14:32 bnx2 udp multicast packet loss and jtter Kieran Kunhya
2011-06-17 15:30 ` Eric Dumazet [this message]
2011-06-17 15:35 ` Kieran Kunhya
2011-06-17 15:52 ` Eric Dumazet
2011-06-17 16:42 ` Kieran Kunhya
2011-06-17 16:55 ` Eric Dumazet
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