On Mon, Feb 22, 2016 at 2:23 PM, drum.lucas@xxxxxxxxx <drum.lucas@xxxxxxxxx> wrote: > > > On 22 February 2016 at 07:34, Scott Marlowe <scott.marlowe@xxxxxxxxx> wrote: >> >> I also noticed you're running RHEL 6.x which runs on the truly ancient >> (but pretty reliable) 2.6.32 kernel. The newer 3.11 and 3.13 kernels >> are MUCH faster at IO and a lot smarter about caching and when to swap >> etc. I've seen several big machines go from a few thousand tps to 15 >> to 20k tps just from going from 3.2 to 3.13. Keep us updated on >> whether or not a pooler works for you. > > > > I'm running a CentOS 6.6 with Kernel 2.6.32-504.el6 > > Is it possible to upgrade to the 3.13 version using Centos 6.6? (I think > only in Centos 7) > Is so, can you please provide me any link that shows a IO improvement > between two kernels? something that I can study It has been many years since I took care of a Centos box, but in this article by Josh Berkus about avoiding kernel 3.2 it is mentioned that centos 7 can in fact run 3.10 kernel. http://www.databasesoup.com/2014/09/why-you-need-to-avoid-linux-kernel-32.html -- Sent via pgsql-admin mailing list (pgsql-admin@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
