Hi Hugh,
first of all, please let me apologize for the delay in my response and thank
you for your extensive review!
On Sun, 30 Sep 2012, Hugh Dickins wrote:
> Andrea's point about ksm_migrate_page() is an important one, and I've
> answered that against his mail, but here's some other easier poin
On Mon, 1 Oct 2012, Andrea Arcangeli wrote:
> On Sun, Sep 30, 2012 at 05:36:33PM -0700, Hugh Dickins wrote:
> > I'm all for the simplest solution, but here in ksm_migrate_page()
> > is not a good place for COW breaking - we don't want to get into
> > an indefinite number of page allocations, and th
Hi Hugh,
On Sun, Sep 30, 2012 at 05:36:33PM -0700, Hugh Dickins wrote:
> I'm all for the simplest solution, but here in ksm_migrate_page()
> is not a good place for COW breaking - we don't want to get into
> an indefinite number of page allocations, and the risk of failure.
Agreed, not a good pla
On Sun, 30 Sep 2012, Hugh Dickins wrote:
> Andrea's point about ksm_migrate_page() is an important one, and I've
> answered that against his mail, but here's some other easier points.
There's another point that I completely forgot to make once I got down
to the details of your patch.
Somewhere, I
Andrea's point about ksm_migrate_page() is an important one, and I've
answered that against his mail, but here's some other easier points.
On Mon, 24 Sep 2012, Petr Holasek wrote:
> Introduces new sysfs boolean knob /sys/kernel/mm/ksm/merge_across_nodes
> which control merging pages across differ
Sorry for taking so long to look at Petr's nice work: it's more than
what I can think through in odd stolen moments; but yesterday at last
I managed to get down to remembering KSM and giving this some time.
On Fri, 28 Sep 2012, Andrea Arcangeli wrote:
> On Mon, Sep 24, 2012 at 02:56:06AM +0200, Pe
Hi everyone,
On Mon, Sep 24, 2012 at 02:56:06AM +0200, Petr Holasek wrote:
> +static struct rb_root root_unstable_tree[MAX_NUMNODES] = { RB_ROOT, };
not initializing is better so we don't waste .data and it goes in the
.bss, initializing only the first entry is useless anyway, that's
getting init
On 09/23/2012 08:56 PM, Petr Holasek wrote:
Introduces new sysfs boolean knob /sys/kernel/mm/ksm/merge_across_nodes
which control merging pages across different numa nodes.
When it is set to zero only pages from the same node are merged,
otherwise pages from all nodes can be merged together (defa
Introduces new sysfs boolean knob /sys/kernel/mm/ksm/merge_across_nodes
which control merging pages across different numa nodes.
When it is set to zero only pages from the same node are merged,
otherwise pages from all nodes can be merged together (default behavior).
Typical use-case could be a lo
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