From: Christoph Hellwig <hch@infradead.org>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: Andries.Brouwer@cwi.nl, Alan Cox <alan@lxorguk.ukuu.org.uk>,
hpa@zytor.com, lkml <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@infradead.org>
Subject: Re: IO stats in /proc/partitions
Date: Thu, 16 May 2002 08:50:22 +0100 [thread overview]
Message-ID: <20020516085022.B14643@infradead.org> (raw)
In-Reply-To: <UTC200205041959.g44JxQa20044.aeb@smtp.cwi.nl> <Pine.LNX.4.21.0205151838001.21222-100000@freak.distro.conectiva>
On Wed, May 15, 2002 at 06:39:03PM -0300, Marcelo Tosatti wrote:
> > On the other hand, disk statistics should not be in
> > /proc/partitions. They should be in /proc/diskstatistics.
> > I see a heading today "rio rmerge rsect ruse wio wmerge"
> > "wsect wuse running use aveq". No doubt next year we'll
> > want different statistics. So /proc/diskstatistics should
> > start with a header line including a version field.
> >
> > Please keep these disk statistics apart from /proc/partitions.
>
> The change can possibly break userlevel tools which were working with
> 2.4.18.
>
> Christoph, please create a /proc/diskstatistics file or something like
> that and send me a patch.
I rather send a complete backout patch for mainline instead. This format
has been used by the vendor (Red Hat, SuSE, etc..) kernels since 2.2 ages
and is used (if present) by the stock performance tools for linux
(i.e. syststat package, iostat).
next prev parent reply other threads:[~2002-05-16 7:52 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-04 19:59 IO stats in /proc/partitions Andries.Brouwer
2002-05-04 20:35 ` M. Edward Borasky
2002-05-04 21:25 ` Mark Hahn
2002-05-05 1:04 ` M. Edward (Ed) Borasky
2002-05-06 14:04 ` Jakob Østergaard
2002-05-04 21:35 ` Tomas Szepe
2002-05-05 1:08 ` M. Edward (Ed) Borasky
2002-05-05 1:18 ` Mike Fedyk
2002-05-05 16:55 ` Denis Vlasenko
2002-05-05 18:10 ` M. Edward (Ed) Borasky
2002-05-05 23:51 ` Thomas Zimmerman
2002-05-04 22:53 ` Alan Cox
2002-05-04 22:46 ` H. Peter Anvin
2002-05-15 21:39 ` Marcelo Tosatti
2002-05-15 23:18 ` Miquel van Smoorenburg
2002-05-16 0:30 ` Alan Cox
2002-05-20 18:19 ` Bill Davidsen
2002-05-21 0:36 ` Guest section DW
2002-05-21 13:11 ` Alan Cox
2002-05-16 7:50 ` Christoph Hellwig [this message]
2002-05-23 20:27 ` Marcelo Tosatti
2002-05-24 9:56 ` Christoph Hellwig
-- strict thread matches above, loose matches on Subject: below --
2002-05-05 1:38 Nivedita Singhvi
2002-03-12 15:34 Jean-Eric Cuendet
2002-03-12 21:51 ` H. Peter Anvin
2002-03-12 22:48 ` Anton Altaparmakov
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