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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Tracking CPU and Other Statistics
We briefly mentioned in Chapter 2 that OWI does not capture any CPU statistics. Fortunately, this, along with myriad other statistics is exposed via the V$SYSSTAT view at the system level and the V$SESSTAT view at the session level. The V$STATNAME view provides a list of statistics that can be used to resolve the statistic name for V$SESSTAT. In short, V$SYSSTAT shows cumulative instance-wide statistics since the instance started, while V$SESSTAT shows cumulative session-wide statistics since the session started. The number and names of these statistics vary from version to version, just as with the wait events. However, the structure and meaning has mostly remained the same through the versions.
The meaning ...
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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.
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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.