netdev - Re: [PATCH] tcp: Fix slowness in read /proc/net/tcp

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Message-ID: <1275906731.2545.47.camel@edumazet-laptop>
Date:	Mon, 07 Jun 2010 12:32:11 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	Tom Herbert <therbert@...gle.com>, davem@...emloft.net,
	netdev@...r.kernel.org, Yakov Lerner <iler.ml@...il.com>
Subject: Re: [PATCH] tcp: Fix slowness in read /proc/net/tcp

Le lundi 07 juin 2010 à 10:49 +0200, Andi Kleen a écrit :
> Eric Dumazet <eric.dumazet@...il.com> writes:
> >
> > BTW, another problem of /proc/net/tcp is the buffer size used by netstat
> > utility : 1024 bytes instead of PAGE_SIZE, making O(N^2) behavior even
> > more palpable.
> 
> That would be easily fixable in netstat.
> 
> But I'm not sure net-tools is still maintained as a separate package,
> afaik the standard procedure is to submit a patch to a big distribution
> and the others take it from there.

Well, it seems this is fixed in latest netstat, sorry for the noise (I
still have machines with RHEL 4)



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