On Wed, Feb 07, 2007 at 12:30:38AM -0800, Christoph Lameter wrote:
> On Tue, 6 Feb 2007, David Rientjes wrote:
>
> > Extracts the page table entry walker from the smaps-specific code in
> > fs/proc/task_mmu.c. This will be used later for clearing the reference
> > bits on pages to measure the
On Wed, Feb 07, 2007 at 12:30:38AM -0800, Christoph Lameter wrote:
On Tue, 6 Feb 2007, David Rientjes wrote:
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure the number of
On Thu, 8 Feb 2007, Matt Mackall wrote:
> I've been looking at a similar refactoring of other code and I think
> the way to go is a callback per block-of-PTEs with start and end
> pointers. That gets rid of most of the call indirection overhead.
>
Yes, but only in a limited number of cases
On Wed, Feb 07, 2007 at 03:29:34PM +0900, Paul Mundt wrote:
> On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
> > Extracts the page table entry walker from the smaps-specific code in
> > fs/proc/task_mmu.c. This will be used later for clearing the reference
> > bits on pages to
On Wed, Feb 07, 2007 at 03:29:34PM +0900, Paul Mundt wrote:
On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure
On Thu, 8 Feb 2007, Matt Mackall wrote:
I've been looking at a similar refactoring of other code and I think
the way to go is a callback per block-of-PTEs with start and end
pointers. That gets rid of most of the call indirection overhead.
Yes, but only in a limited number of cases
On Wed, 7 Feb 2007, Christoph Lameter wrote:
> Clearing reference bits? Ummm... That is a pretty inaccurate measure since
> reclaim can remove pages and revert the reference bits. It can never work
> reliably.
>
It's not intended to work precisely, it's intended to give a good estimate
of
On Tue, 6 Feb 2007, David Rientjes wrote:
> Extracts the page table entry walker from the smaps-specific code in
> fs/proc/task_mmu.c. This will be used later for clearing the reference
> bits on pages to measure the number of pages accessed over a time period
> through /proc/pid/smaps.
On Tue, 6 Feb 2007, David Rientjes wrote:
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure the number of pages accessed over a time period
through /proc/pid/smaps.
Clearing
On Wed, 7 Feb 2007, Christoph Lameter wrote:
Clearing reference bits? Ummm... That is a pretty inaccurate measure since
reclaim can remove pages and revert the reference bits. It can never work
reliably.
It's not intended to work precisely, it's intended to give a good estimate
of task
On Tue, Feb 06, 2007 at 10:49:14PM -0800, Andrew Morton wrote:
> On Wed, 7 Feb 2007 15:29:34 +0900 Paul Mundt <[EMAIL PROTECTED]> wrote:
> > I like the general idea of this patch set, however..
>
> David didn't really spell out the rationale. Userspace people ask "how
> much memory is my
On Wed, 7 Feb 2007 15:29:34 +0900 Paul Mundt <[EMAIL PROTECTED]> wrote:
> On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
> > Extracts the page table entry walker from the smaps-specific code in
> > fs/proc/task_mmu.c. This will be used later for clearing the reference
> > bits
On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
> Extracts the page table entry walker from the smaps-specific code in
> fs/proc/task_mmu.c. This will be used later for clearing the reference
> bits on pages to measure the number of pages accessed over a time period
> through
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure the number of pages accessed over a time period
through /proc/pid/smaps.
The new struct pte_walker includes the struct
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure the number of pages accessed over a time period
through /proc/pid/smaps.
The new struct pte_walker includes the struct
On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages to measure the number of pages accessed over a time period
through
On Wed, 7 Feb 2007 15:29:34 +0900 Paul Mundt [EMAIL PROTECTED] wrote:
On Tue, Feb 06, 2007 at 10:15:47PM -0800, David Rientjes wrote:
Extracts the page table entry walker from the smaps-specific code in
fs/proc/task_mmu.c. This will be used later for clearing the reference
bits on pages
On Tue, Feb 06, 2007 at 10:49:14PM -0800, Andrew Morton wrote:
On Wed, 7 Feb 2007 15:29:34 +0900 Paul Mundt [EMAIL PROTECTED] wrote:
I like the general idea of this patch set, however..
David didn't really spell out the rationale. Userspace people ask how
much memory is my application
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