Hi, I am reserving 2.1 GB of memory for postgres to use with SuSE linux 9.0 (SLES) in sysctl.conf. I have configured postgres to use 1.9 GB of memory so it won't go over the 2.1 cap (postgresql.conf). I have a total of 4GB of memory. Somewhere I read to keep half of the memory for other things. This server is dedicated to postgresql. Does anyone agree with just using 2GB? Does anyone know where I might have read that? Thanks, Dj