Re: Researching latch efficiency

  • From: GRIFFIJ6@xxxxxxxxxxxxxx
  • To: dwittry@xxxxxxxxxx
  • Date: Thu, 19 Jun 2008 12:53:03 -0400

You can google the individual wait event (or use metalink, etc.) and find 
typically lots of good info about what wait event is what.  You could also 
use Confio's outstanding tool Ignite (trial version available on their web 
site, I believe) to get a useful and graphical tool to help you analyze 
what query is producing which events.  That tool will typically also give 
you a decent description of an event, what causes it, who usually fixes it 
(DBA vs. Application vs. SA, etc.) and so on.

I imagine there are other good tools out there as well, but I've gotten 
quite a bit of use out of Ignite and really like it.

oracle-l-bounce@xxxxxxxxxxxxx wrote on 06/19/2008 10:50:00 AM:

> <oracle-l@xxxxxxxxxxxxx>
> Hi everyone –
> Forgive me if this has been asked before…  how / where can I 
> research what the various wait events mean? I’m seeing an event 
> called “messages” and that is such a common word it is challenging 
> for search engines to identify when I search “oracle wait event 
> __thanks
> p.s.  using Ora10.2.0.4 on HPUX Itanium
> Daniel Wittry
> Sr. Database Administrator, Global SCI
> HAVI Global Solutions (
> P Please consider the environment before printing this email.

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