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From: Nigel Rantor <wiggly@wiggly.org>
To: "David S. Miller" <davem@redhat.com>
Cc: Chris Wedgwood <cw@f00f.org>,
	peter@chubb.wattle.id.au, viro@parcelfarce.linux.theplanet.co.uk,
	linux-kernel@vger.kernel.org
Subject: Re: stat very inefficient
Date: Thu, 29 Jul 2004 12:42:18 +0100	[thread overview]
Message-ID: <4108E29A.5080609@wiggly.org> (raw)
In-Reply-To: <20040728171414.5de8da96.davem@redhat.com>

David S. Miller wrote:
> On Wed, 28 Jul 2004 17:08:37 -0700
> Chris Wedgwood <cw@f00f.org> wrote:
> 
> 
>>Just How bad is it for you?  I just tested stat on my crapbox and for
>>a short path 1M stats takes 0.5s and for a longer path (30 bytes or
>>so) 2.8s.
> 
> 
> Run "time find . -type f" on the kernel tree, both before and
> after removing the third unnecessary copy.  Many machines sit all
> day and stat files.

P2 350MHz 256Mb RAM circa 1998

bash$ time find . -type f

gives

real    0m16.142s
user    0m0.432s
sys     0m2.893s

I'd be interested to see what machine you have that takes all day.

   N

  parent reply	other threads:[~2004-07-29 11:42 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <233602095@toto.iv>
2004-07-28 22:33 ` stat very inefficient Peter Chubb
2004-07-28 22:45   ` David S. Miller
2004-07-29  0:08     ` Chris Wedgwood
2004-07-29  0:14       ` David S. Miller
2004-07-29  0:24         ` Chris Wedgwood
2004-07-29  0:29         ` viro
2004-07-29  7:26           ` Peter Chubb
2004-07-29  7:42             ` Andrew Morton
2004-07-29  8:49               ` Paul Jackson
2004-07-29  9:02                 ` Andrew Morton
2004-07-29  9:17                   ` Peter Chubb
2004-07-29  7:45             ` Ulrich Drepper
2004-07-29 11:42         ` Nigel Rantor [this message]
2004-07-29  1:07     ` Ulrich Drepper
2004-07-29  2:22       ` Paul Jackson
2004-07-29  4:10         ` Ulrich Drepper
2004-07-29  6:18           ` Paul Jackson
     [not found] <2mN94-3MP-9@gated-at.bofh.it>
2004-07-28 10:16 ` Andi Kleen
2004-07-28 15:38   ` David S. Miller
2004-07-28  3:13 David S. Miller
2004-07-28 18:07 ` viro

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