UK Oracle User Group

Understanding Exadata Performance: Metrics and Wait Events

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Time: 11:35 AM - 12:35 PM

Track: Track 1

In order to systematically troubleshoot and optimize Exadata performance, one must understand the meaning of its performance metrics.

This session provides a deep technical walkthrough of how Exadata IO and smart scans work and how to use relevant metrics for troubleshooting related performance issues. We will review both Exadata database and cell-level metrics, cell wait events and tools useful for troubleshooting. We will also look into metrics related to Exadata Hybrid Columnar Compression and the cell Flash Cache usage.


Tanel Poder is an experienced consultant with deep expertise in Oracle database internals, advanced performance tuning and end-to-end troubleshooting. He specializes in solving complex problems spanning multiple infrastructure layers such as Unix, Oracle Database, storage and recently the whole Oracle Exadata hardware-software stack.

Tanel is one of the first Oracle Certified Masters in the world, passing the OCM DBA exam in 2002; he is also an Oracle ACE Director and a proud member of the OakTable Network.

In addition to consulting work and delivering seminars worldwide, Tanel also publishes technical articles and troubleshooting tools on his company website and blog He is also one of the co-authors of the Expert Oracle Exadata book, which will be published by Apress in the summer of 2011.

Presented by

  • Tanel Poder, E2SN Ltd

Attached Documents

PDFUnderstanding Exadata Performance: Metrics and Wait Events - Tanel Poder

Published: 19.04.2011 - This document is restricted to members