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

Matt Mackall wrote:

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.

So everyone keeps saying.

Would you tell me why you can't just traverse the data structures
in the same way as your proc handler? From the systemtap example
scripts it seems like you can traverse arbitrary kernel data
structures.

--
SUSE Labs, Novell Inc.
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• References:
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: William Lee Irwin III <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Nick Piggin <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Nick Piggin <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Nick Piggin <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Andrew Morton <[email protected]>
  • Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
    • From: Matt Mackall <[email protected]>

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