From: Eric Dumazet <eric.dumazet@gmail.com>
To: Steven Whitehouse <swhiteho@redhat.com>
Cc: linux-kernel@vger.kernel.org, cluster-devel@redhat.com,
Al Viro <viro@zeniv.linux.org.uk>,
nstraz@redhat.com
Subject: Re: seq_file: Use larger buffer to reduce time traversing lists
Date: Fri, 01 Jun 2012 14:48:10 +0200 [thread overview]
Message-ID: <1338554890.2760.1517.camel@edumazet-glaptop> (raw)
In-Reply-To: <1338553486.2708.25.camel@menhir>
On Fri, 2012-06-01 at 13:24 +0100, Steven Whitehouse wrote:
> Yes, you are right that it will be slow, still. But I'm not sure what we
> can do about that. We have to find our place again on each read call, in
> any case I think.
You dont really answer my question, I asked the exact timing...
I can't reproduce this slow behavior you have, using /proc/net seq
files.
Isn't it a problem with this particular file ?
Does it want to output a single record ( m->op->show(m, p) ) much larger
than 4KB ?
next prev parent reply other threads:[~2012-06-01 12:48 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-01 10:39 Steven Whitehouse
2012-06-01 12:10 ` Eric Dumazet
2012-06-01 12:14 ` Eric Dumazet
2012-06-01 12:26 ` Steven Whitehouse
2012-06-01 12:24 ` Steven Whitehouse
2012-06-01 12:48 ` Eric Dumazet [this message]
2012-06-01 13:14 ` Steven Whitehouse
2012-06-01 13:27 ` Eric Dumazet
2012-06-01 14:18 ` Steven Whitehouse
2012-06-01 14:57 ` Eric Dumazet
2012-06-01 15:01 ` Eric Dumazet
2012-06-01 15:18 ` Eric Dumazet
2012-06-01 15:30 ` Steven Whitehouse
2012-06-01 15:28 ` Steven Whitehouse
2012-06-01 15:47 ` Eric Dumazet
2012-06-01 15:54 ` Joe Perches
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