Re: [HACKERS] large page query

2010-11-29 Thread Kevin Grittner
"Hamza Bin Sohail" wrote: > I was wondering if I could get to know whether Postgres > administrators configure the Postgres DBMS with large page support > for shared memory regions You might be interested in a recent thread in the -hackers archives which starts with this post: http://archive

Re: [HACKERS] large page query

2010-11-29 Thread Robert Haas
On Mon, Nov 29, 2010 at 12:05 PM, Hamza Bin Sohail wrote: > 1) Does Postgres use large page support ? On solaris 10 and the ultrasparc > III processor, a large page is 4 MB. It significantly reduces the page table > size of the application and a 1000 entry TLB can cover the entire memory 4G. > > 2

[HACKERS] large page query

2010-11-29 Thread Hamza Bin Sohail
Hi, I posted this email on the other postgres lists but did not get a reply. So as a last resort, I came here. I hope somebody can help. I am looking into the impact of large page sizes on the performance of commercial workloads e.g databases,webserver,virtual machines etc. I was wondering if