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.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

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]>

Prev by Date: Re: [patch -mm] i386: use pte_update_defer in ptep_test_and_clear_{dirty,young}
Next by Date: Re: [PATCH] cache_k8_northbridges() overflows beyond allocation (Was: 2.6.21-rc5-mm4 (SLUB))
Previous by thread: Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
Next by thread: Re: [PATCH 0/13] maps: pagemap, kpagemap, and related cleanups
Index(es):
- Date
- Thread

[Index of Archives] [Kernel Newbies] [Netfilter] [Bugtraq] [Photo] [Stuff] [Gimp] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Video 4 Linux] [Linux for the blind] [Linux Resources]