From: Eric Dumazet <eric.dumazet@gmail.com>
To: James Yonan <james@openvpn.net>
Cc: netdev <netdev@vger.kernel.org>
Subject: Re: GSO/GRO and UDP performance
Date: Fri, 06 Sep 2013 06:07:09 -0700 [thread overview]
Message-ID: <1378472829.31445.21.camel@edumazet-glaptop> (raw)
In-Reply-To: <52299EDD.1030208@openvpn.net>
On Fri, 2013-09-06 at 03:22 -0600, James Yonan wrote:
> So I think that playing well with GSO/GRO is essential to get speedup in
> UDP apps because of this 43x multiplier.
>
Thats not true. GRO cannot aggregate more than 16+1 packets.
I think we cannot aggregate UDP packets, because UDP lacks sequence
numbers, so reorders would be a problem.
You really need something that is not UDP generic.
next prev parent reply other threads:[~2013-09-06 13:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-04 10:07 GSO/GRO and UDP performance James Yonan
2013-09-04 11:53 ` Eric Dumazet
2013-09-06 9:22 ` James Yonan
2013-09-06 13:07 ` Eric Dumazet [this message]
2013-09-06 16:42 ` Rick Jones
2013-09-06 19:26 ` James Yonan
2013-09-06 19:32 ` Eric Dumazet
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