I missed the earlier part of this thread, but is large page support even in z/VM ?. Alan ?. I have a recollection that Mario Held from the Boeblingen labs said this has been tested, but only for an LPAR install. And I'm pretty sure I followed up on this and got the answer it's not even in V6.1. Happy to be proved wrong.
On non-s390 one of the big plusses is avoiding TLB misses. But given that I believe z/VM also doesn't support hiperdispatch, that may not be much of a gain on zSeries either. Shane ... On Fri, 2009-11-27 at 17:03 -0700, Mark Post wrote: > >>> On 11/27/2009 at 6:12 PM, Barton Robinson wrote: > > Having seen a very good performance presentation from IBM on the > > value of huge pages, I'm interested in knowing what value y'all > > expect from this? > > For me, just a big savings in page table overhead for relatively large > Oracle systems with lots and lots of processes mapping a lot of shared > memory. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
