From: Eric Dumazet <eric.dumazet@gmail.com>
To: Chris <xchris89x@googlemail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: many rx packets dropped since 2.6.37
Date: Wed, 25 Apr 2012 19:43:01 +0200 [thread overview]
Message-ID: <1335375781.5951.2.camel@edumazet-glaptop> (raw)
In-Reply-To: <CAOFJUki3Jg+fAWWY70nDUCdxVs5A5VGfwkwUn01a4BX+N5nm-A@mail.gmail.com>
On Wed, 2012-04-25 at 16:38 +0200, Chris wrote:
> 2012/4/25 Eric Dumazet <eric.dumazet@gmail.com>:
> >> Why do we see dropped packets only in virtual environments and bonded
> >> network interfaces and not on real network interfaces?
> >
> > This has to be investigated, eventually.
>
> Do you have the opportunity to test it? Just install fedora 16 (linux
> 3.3) or ubuntu 12.04 (linux 3.2) as guest under kvm and use as virtual
> network card virtio_net or e1000.
>
> You will see many lost rx packets and i have no idea why???
You can use drop_monitor / dropwatch to figure out
https://fedorahosted.org/dropwatch/
http://prefetch.net/blog/index.php/2011/07/11/using-netstat-and-dropwatch-to-observe-packet-loss-on-linux-servers/
Or just ignore the thing, if no user side effect is noticed.
next prev parent reply other threads:[~2012-04-25 17:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-25 11:03 Chris
2012-04-25 11:30 ` Eric Dumazet
2012-04-25 12:34 ` Chris
2012-04-25 12:46 ` Eric Dumazet
2012-04-25 14:38 ` Chris
2012-04-25 17:43 ` Eric Dumazet [this message]
2012-04-26 13:53 ` Chris
2012-04-26 14:07 ` Eric Dumazet
2012-04-26 14:29 ` Chris
2012-04-26 14:44 ` Eric Dumazet
2012-04-25 18:00 ` David Miller
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