Messages in this thread | | | Date | Mon, 30 Sep 2013 09:05:34 -0700 | From | Andi Kleen <> | Subject | Re: [PATCHv6 00/22] Transparent huge page cache: phase 1, everything but mmap() |
| |
On Mon, Sep 30, 2013 at 11:13:00AM +0100, Mel Gorman wrote: > On Tue, Sep 24, 2013 at 04:49:50PM -0700, Andi Kleen wrote: > > > Sigh. A pox on whoever thought up huge pages. > > > > managing 1TB+ of memory in 4K chunks is just insane. > > The question of larger pages is not "if", but only "when". > > > > Remember that there are at least two separate issues there. One is the > handling data in larger granularities than a 4K page and the second is > the TLB, pagetable etc handling. They are not necessarily the same problem.
It's the same problem in the end.
The hardware is struggling with 4K pages too (both i and d)
I expect longer term TLB/page optimization to have far more important than all this NUMA placement work that people spend so much time on.
-Andi -- ak@linux.intel.com -- Speaking for myself only
| |