On Wed, 19 Feb 2014 09:59:17 +0100 Peter Zijlstra wrote:
> On Tue, Feb 18, 2014 at 05:12:43PM -0500, r...@redhat.com wrote:
> > The NUMA scanning code can end up iterating over many gigabytes
> > of unpopulated memory, especially in the case of a freshly started
> > KVM guest with lots of memory.
On Tue, Feb 18, 2014 at 05:12:43PM -0500, r...@redhat.com wrote:
> The NUMA scanning code can end up iterating over many gigabytes
> of unpopulated memory, especially in the case of a freshly started
> KVM guest with lots of memory.
>
> This results in the mmu notifier code being called even when
The NUMA scanning code can end up iterating over many gigabytes
of unpopulated memory, especially in the case of a freshly started
KVM guest with lots of memory.
This results in the mmu notifier code being called even when
there are no mapped pages in a virtual address range. The amount
of time wa
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