From: Andrew Morton <akpm@digeo.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Anton Blanchard <anton@samba.org>,
Lev Makhlis <mlev@despammed.com>,
linux-kernel@vger.kernel.org, akpm@zip.com.au
Subject: Re: [RFC] [PATCH] [2.5.35] Run Queue Statistics
Date: Mon, 16 Sep 2002 20:21:12 -0700 [thread overview]
Message-ID: <3D869FA8.7A50BC91@digeo.com> (raw)
In-Reply-To: Pine.LNX.4.44L.0209170007110.1857-100000@imladris.surriel.com
Rik van Riel wrote:
>
> On Tue, 17 Sep 2002, Anton Blanchard wrote:
>
> > On a semi related note, vmstat wants to know the number of running,
> > blocked and swapped processes. strace vmstat one day and you will see it
> > currently opens /proc/*/stat (ie one open for each process) just to get
> > these stats. Yet another place where the monitoring utilities disturb
> > the system way too much.
> >
> > Can we get some things in /proc/stat to give us these numbers? Does
> > "swapped" make any sense on Linux?
Certainly sounds good. Opening every /proc/<pid>/stat is gross.
> Runnable can be done currently, blocked on IO is trivial once
> Andrew has pushed the iowait stats to Linus.
>
That'll be a while off yet. I'd like to make sure that we have
all the externally visible changes stable for a week or so,
/proc/diskstats settled down, userspace updated and tested etc.
Just to minimise the disruption and churn which these changes
will cause.
prev parent reply other threads:[~2002-09-17 3:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-16 22:20 [RFC] [PATCH] [2.5.35] Run Queue Statistics Lev Makhlis
2002-09-17 2:59 ` Anton Blanchard
2002-09-17 3:08 ` Rik van Riel
2002-09-17 3:20 ` [despammed] " Lev Makhlis
2002-09-17 3:21 ` Andrew Morton [this message]
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