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

On Fri, 13 Apr 2007 12:24:51 -0500 Matt Mackall <[email protected]> wrote:

> > > From /proc/kpagemap + /proc/*/pagemap, you can
> > > basically synthesize any statistic you want, including all the
> > > existing ones. For some data, /proc/pid/smaps (or /proc/meminfo) will
> > > be considerably more efficient.
> > 
> > You'd need to poke clear_refs beforehand to make the referenced bits useful.
> > 
> > Actually, we also need to run around the ptes and collect the pte-referenced
> > bits too.  I don't think your code copes with any of that?
> 
> No, and it probably should. Perhaps dirty as well, though I've kindof
> lost the plot on how that works lately.

Dirty is OK: the VM keeps pte-dirtiness and page-dirtiness in sync now.
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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: Matt Mackall <[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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