July 2004
Intermediate to advanced
384 pages
9h 32m
English
book
Oracle Wait Interface: A Practical Guide to Performance Diagnostics & Tuning
by Richmond Shee, Kirtikumar Deshpande, K Gopalakrishnan
Content preview from Oracle Wait Interface: A Practical Guide to Performance Diagnostics & TuningBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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OWI Components
Oracle Wait Interface is a collection of a few dynamic performance views and an extended SQL trace file.
Oracle Wait Interface provides statistics for wait events to tell you how many times and how long the session waited for an event to complete. To get the “how long” part, however, you must set the initialization parameter, TIMED_STATISTICS, to TRUE. Old documentation associated high overhead with this parameter and scared a lot of DBAs away. But take comfort: these days, setting this parameter to TRUE does not add any appreciable overhead to the database performance on most platforms because most machines provide hardware support for fast timers. It provides critical and required timing information for all performance improvement ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.