netdev - Re: cat /proc/net/tcp takes 0.5 seconds on x86

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Message-ID: <Pine.LNX.4.64.0808271427040.3610@t2.domain.actdsltmp>
Date:	Wed, 27 Aug 2008 14:29:18 -0700 (PDT)
From:	Trent Piepho <tpiepho@...escale.com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	Dave Jones <davej@...hat.com>, netdev@...r.kernel.org,
	j.w.r.degoede@....nl
Subject: Re: cat /proc/net/tcp takes 0.5 seconds on x86_64

On Wed, 27 Aug 2008, Andi Kleen wrote:
> On a 2GB Core2 system here I see a time cat /proc/net/tcp > /dev/null
> constently dropping from 0.44s to 0.4-0.8s system time with this change.
> This is with mostly empty hash tables.

Umm, 0.4 to 0.8 seconds is on average _slower_ than 0.44 seconds.  Did you
mean .04 to .08?
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