Martin Grotzke wrote: > we want to see if we can gain better performance with our postgresql > database. In the last year the amount of data growed from ~25G to now > ~140G and we're currently developing a new feature that needs to get > data faster from the database. The system is both read and write heavy. > > At first I want to give you an overview over the hardware, software and > configuration and the changes that I see we could check out. I'd be very > happy if you could review and tell if the one or the other is nonsense. > > Hardware: > - CPU: 4x4 Cores Intel Xeon L5630 @ 2.13GHz > - RAM: 64GB > - RAID 1 (1+0) HP Company Smart Array G6 controllers, P410i > (I don't know the actual number of discs) > - A single partition for data and wal-files > > Software > - RHEL 6, Kernel 2.6.32-220.4.1.el6.x86_64 > - postgresql90-server-9.0.6-1PGDG.rhel6.x86_64 You could try different kernel I/O elevators and see if that improves something. I have made good experiences with elevator=deadline and elevator=noop. Yours, Laurenz Albe -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
