On Tue, September 5, 2006 5:08 pm, nilesh khode wrote: > Hello, > > I am working on database performace tuning on Postgresql 8.1 database > build on Suse 10 Linux dedicated server. I am having 32 GB of RAM and 8 > CPUs. > nice machine :) > > I have made minimum recommended settings under postgresql.conf (i.e > shared_buffer, work_mem, and effective cache_size also kernel.shmmax) > > I have run SQL queries using pg-admin, the query execution + retrieval > time is 80% reduced over existing server. > But same I tested with JDBC, the query requires more time as compared > with existing server. > what 's the driver used ? do you use statement or preparedstatement ? the time given is made after 1 query or the same query repeated x times then dividing the whole time by x ? have you tried to use jdbc proxy (p6spy for instance) to watch the query ? to know where the time is spent (don't use it in production !!!) > Please help me out in this performance tuning. > HTH Jerome > Regards, > Nilesh > > -- Auteur cahiers du programmeur J2EE - Eyrolles 2003
