From: Con Kolivas <kernel@kolivas.org>
To: Zwane Mwaikambo <zwane@holomorphy.com>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: tbench as a load - DDOS attack?
Date: Sun, 16 Feb 2003 11:48:02 +1100 [thread overview]
Message-ID: <200302161148.02045.kernel@kolivas.org> (raw)
In-Reply-To: <Pine.LNX.4.50.0302151823130.16012-100000@montezuma.mastecende.com>
On Sun, 16 Feb 2003 10:24 am, Zwane Mwaikambo wrote:
> On Sun, 16 Feb 2003, Con Kolivas wrote:
> > Zwane M suggested using tbench as a load to test one of his recent
> > patches and gave me the idea to try using tbench_load in contest. Here
> > are the first set of results I got while running tbench 4 continuously
> > (uniprocessor machine):
> >
> > tbench_load:
> > Kernel [runs] Time CPU%
> > test2420 1 180 38.9
> > test2561 1 970 7.7
> >
> > This is a massive difference. Sure tbench was giving better numbers on
> > 2.5.61 but it caused a massive slowdown. I wondered whether this
> > translates into being more susceptible to ping floods or DDOS attacks?
> > You should have seen tbench 16 - 3546 seconds!
> >
> > comments?
>
> Are you running this via loopback? Can you send a profile during the
> 2.4.20 run?
Loopback.
Con
next prev parent reply other threads:[~2003-02-16 0:38 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-15 23:07 tbench as a load - DDOS attack? Con Kolivas
2003-02-15 23:24 ` Zwane Mwaikambo
2003-02-16 0:48 ` Con Kolivas [this message]
2003-02-16 9:30 ` Andrew Morton
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