Yep, good article. Is anyone aware of anything similar to Solaris' DTrace for HPUX or AIX? -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of John Kanagaraj Sent: Tuesday, February 21, 2006 11:21 AM To: oracle-l@xxxxxxxxxxxxx Subject: A good OS centric discussion on performance Hi all, http://acmqueue.com/modules.php?name=Content <http://acmqueue.com/modules.php?name=Content&pa=showpage&pid=363&page=1> &pa=showpage&pid=363&page=1 Came across this link (from a SQLServer newsletter of all places!) This is a very interesting Q & A from a "Cary" clone (if I may use this term!) in the UNIX/Linux/Java/C world. It is a bit long, but he does cover a lot of ground. Cheers, John Kanagaraj <>< DB Soft Inc Phone: 408-970-7002 (W) ** The opinions and facts contained in this message are entirely mine and do not reflect those of my employer or customers ** Privileged/Confidential Information may be contained in this message or attachments hereto. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of this company shall be understood as neither given nor endorsed by it.