I'm not sure what "what is the avail of it" means.
I mean what if function of it if there is
The Core i7 - a quad core processor - uses local memory for each processor and a shared cache. The local memory is 256K and the shared cache is 8MB,
ohhh ,here cache is larger than Ram, I think ,i know why.
and the shared cache uses 1MB for a local copy of all four processors' shared caches.
I'm not sure I understand it
So the memory manager only needs to look in the shared memory
for something; if it's not there then it has to go out to the RAM.