From: Badalian Vyacheslav <slavon@bigtelecom.ru>
To: Jeba Anandhan <jeba.anandhan@vaioni.com>
Cc: netdev@vger.kernel.org, matthew.hattersley@vaioni.com
Subject: Re: Performance issue : GRE tunneling
Date: Fri, 18 Jan 2008 18:08:03 +0300 [thread overview]
Message-ID: <4790C0D3.8050202@bigtelecom.ru> (raw)
In-Reply-To: <1200664092.22132.3.camel@vglwks010.vgl2.office.vaioni.com>
Jeba Anandhan пишет:
> Hi All,
> When i send the traffic outside of GRE tunnel, The speed is in 3-4Mbps.
> When i use the tunnel for traffic, the speed get reduced huge. It is
> around 100-300Kbps. What are the factors affects the performance when we
> use tunneling [ ex:GRE tunneling ]?
>
Hello. You may try get slow place. Get pc without CPU load (console mode
and etc).
Try compile gre support in kernel. Turn on OPROFILE support.
Install oprofile utils.
do
opcontrol --vmlinux=/usr/src/linux/vmlinux
opcontrol -s
#do connect and try do traffic.
opreport -l | vi -
# you see that functions in kernel use cpu...
opcontrol -h #to stop
Maybe its help for you. Thanks!
> Thanks
> Jeba
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>
prev parent reply other threads:[~2008-01-18 15:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-18 13:48 Performance issue : GRE tunneling Jeba Anandhan
2008-01-18 15:08 ` Badalian Vyacheslav [this message]
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