Hi Chander, Actually I am trying to figure out how much execution time any query is taking is taking when executed for the first time.
Because once a query is executed for the first time, the query plan, data buffer is cached so subsequently time taken is much lower. For this, I want to have the Shared buffer cache flushed to note the initial execution time. Is my understanding correct here ? Regards, Suvankar Roy Chander Ganesan <[email protected]> 07/15/2009 08:48 PM To Suvankar Roy <[email protected]> cc [email protected] Subject Re: [ADMIN] Flush Shared Buffer Cache Suvankar Roy wrote: > > Hi, > > Can anyone help me out with how to flush out Shared Buffer Cache in > Postgres. > > One way would be to restart the database, but I would like to avoid that. AFAIK, that's the only way. Is there a reason that you need to dump the shared buffers? Perhaps if we knew what you were trying to accomplish we could provide you with a suitable solution that doesn't require a restart... -- Chander Ganesan Open Technology Group, Inc. One Copley Parkway, Suite 210 Morrisville, NC 27560 919-463-0999/877-258-8987 http://www.otg-nc.com Expert PostgreSQL, PostGIS, and other Open Source training delivered worldwide. ForwardSourceID:NT00004B0E =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you
