>>>>> "JB" == Josh Berkus <[EMAIL PROTECTED]> writes:
JB> Aaron, >> I do consulting, so they're all over the place and tend to be complex. Very >> few fit in RAM, but still are very buffered. These are almost all backed >> with very high end I/O subsystems, with dozens of spindles with battery >> backed up writethrough cache and gigs of buffers, which may be why I worry >> so much about CPU. I have had this issue with multiple servers. JB> Aha, I think this is the difference. I never seem to be able to JB> get my clients to fork out for adequate disk support. They are JB> always running off single or double SCSI RAID in the host server; JB> not the sort of setup you have. Even when I upgraded my system to a 14-spindle RAID5 with 128M cache and 4GB RAM on a dual Xeon system, I still wind up being I/O bound quite often. I think it depends on what your "working set" turns out to be. My workload really spans a lot more of the DB than I can end up caching. -- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Vivek Khera, Ph.D. Khera Communications, Inc. Internet: [EMAIL PROTECTED] Rockville, MD +1-301-869-4449 x806 AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/ ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
