linux-kernel - Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups

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Message-ID: <20070413020530.GM11115@waste.org>
Date:	Thu, 12 Apr 2007 21:05:30 -0500
From:	Matt Mackall <mpm@...enic.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Nick Piggin <nickpiggin@...oo.com.au>,
	William Lee Irwin III <wli@...omorphy.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups

On Thu, Apr 12, 2007 at 06:57:23PM -0700, Andrew Morton wrote:
> I guess one could generate an answer to the static question with systemtap,
> by accumulating running counts across the application lifetime and then
> snapshotting them.  Sounds hard though.

You'd have to do it from boot onward to get a complete system image.
One way to look at it is that systemtap can give you the derivative of
the information, and you have to integrate it.

-- 
Mathematics is the supreme nostalgia of our time.
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