On 09/13/2011 10:19 PM, Xiao Guangrong wrote:
The spte may not be accessed, but other sptes in the same page can be
accessed. An example is the fixmap area for kmap_atomic(), there will be a lot of
pte writes but other sptes will be accessed without going through soft-mmu at all.
I think
On 08/30/2011 05:38 AM, Xiao Guangrong wrote:
Detecting write-flooding does not work well, when we handle page written, if
the last speculative spte is not accessed, we treat the page is
write-flooding, however, we can speculative spte on many path, such as pte
prefetch, page synced, that means
On 09/13/2011 07:07 PM, Avi Kivity wrote:
On 08/30/2011 05:38 AM, Xiao Guangrong wrote:
Detecting write-flooding does not work well, when we handle page written, if
the last speculative spte is not accessed, we treat the page is
write-flooding, however, we can speculative spte on many path,
Detecting write-flooding does not work well, when we handle page written, if
the last speculative spte is not accessed, we treat the page is
write-flooding, however, we can speculative spte on many path, such as pte
prefetch, page synced, that means the last speculative spte may be not point
to
