From: Chris Metcalf <cmetcalf@tilera.com>
To: Ben Hutchings <bhutchings@solarflare.com>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] tilegx: fix some issues in the SW TSO support
Date: Fri, 26 Oct 2012 14:17:47 -0400 [thread overview]
Message-ID: <508AD3CB.8070303@tilera.com> (raw)
In-Reply-To: <1351194525.2662.21.camel@bwh-desktop.uk.solarflarecom.com>
On 10/25/2012 3:48 PM, Ben Hutchings wrote:
> On Thu, 2012-10-25 at 20:36 +0100, Ben Hutchings wrote:
> [...]
>> There's a simple way to test this - configure the 'attacker' host and
>> interface like this:
>>
>> # ip link set $IFACE mtu 128
>> # sysctl net.ipv4.route.min_adv_mss=88
>>
>> and then use something like netperf to generate a high bandwidth stream
>> of TCP traffic toward it from the tilegx interface.
> Also you would need to run some other traffic in parallel (multiple
> streams to the 'attacker' and some more normal streams) to ensure there
> is real contention.
Thanks! I've filed a bugzilla within Tilera to come back and revisit this
- I think it's not a short-term problem so we'll find some time to look at
it in the future. Or, someone reading this could try it themselves and
submit the patch :-)
--
Chris Metcalf, Tilera Corp.
http://www.tilera.com
prev parent reply other threads:[~2012-10-26 18:17 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-25 17:25 [PATCH] tilegx: fix some issues in the SW TSO support Chris Metcalf
2012-10-25 17:51 ` Ben Hutchings
2012-10-25 18:16 ` Chris Metcalf
2012-10-25 19:36 ` Ben Hutchings
2012-10-25 19:48 ` Ben Hutchings
2012-10-26 18:17 ` Chris Metcalf [this message]
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