How do you manage the wal in both servers? The version kernel is the same in both? Runs the same services? Do you make some test with Posgresql only in both servers? If the problem is the inter-CPU, i know you can specified the number of processors do you want to run dedicated to one process. 2008/10/10 Scott Marlowe <scott.marlowe@xxxxxxxxx>: > On Thu, Oct 9, 2008 at 3:34 PM, Bart Grantham <bg@xxxxxxxxxxxxxx> wrote: >> Forgive me if this has been beaten into the ground, but my team and I >> couldn't find much conclusive study or posts on this issue. To make a long >> story short: we're experiencing Xeons as 50% slower than Opterons, even when >> the Xeon has twice as much cache and a slight clock speed advantage. > > I'm not sure what causes this issue either, although I suspect it's > the inter-CPU / CPU to memory communication speeds that make the > difference. It seems that as the number of CPUs increase, the opteron > lead increases over the xeon. > > -- > Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-general >
