Real-World Performance 2017

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2 Real-World Performance 2017 Oracle Real-World Performance Team Oracle Server Technologies

3 What is Real-World Performance in 2016? Bridging the Divide from Today s Performance to What is Possible

4 Real-World Performance 2016 Who We Are Part of the Database Development Organization Global Team located in USA, Europe, Asia 350+ combined years of Oracle database experience Innovate to achieve exceptional Database Performance Our methods: Use the product as it was designed to be used Numerical and logical debugging techniques Educate others about the best performance methods and techniques Avoid and eliminate tuning by hacking/guessing/luck

5 Root Causes of Suboptimal Database Performance The database is not being used as it was designed to be used The application architecture/code design is Suboptimal There is a suboptimal algorithm in the database

6 The Real World Performance Perception Problem Where database user look for performance improvements Perception Application Algorithmns and Correct Product Usage Database Platform The best place to look for performance Improvements Reality Application Algorithmns and Correct Product Usage Database Platform

7 Recent Results 1000X Oracle Applications Project Baseline: 4.3 Hours Code Changes: 4.3 Hours Correct Usage: 29 Secs Platform: 12 Secs Final: 12 Secs Speed up: 1290 Baseline: 2.4 Days Code Changes: 27 Mins Correct Usage: 7.5 Mins Platform: 4.5 Mins Final: 4.5 Mins Speed up: 768 Baseline: 2.5 Hours Code Changes: 2.5 Hours Correct Usage: 4 Secs Platform: 0.90 Secs Final: 0.90 Secs Speed up: 10000

8 How Does Your Organization Do Performance? Conventional Focus is on Good Enough or What the Business Needs Process Orientated/Part of QA Spends most the time on Platform Tuning Issues Only changes things within limited scope Bottom up tuning approach Looking for incremental gains Real-World Focus on excellence and what the hardware and software can do Innovate excellent performance and add intellectual property to your code Everything is within scope Holistic top down approach Focus on orders of magnitude gains

9 How Does Your Organization Do Performance? Resource Pyramid 10X 100X 1000X Platform Tuning Incremental Gains QA Regression Testing, Capacity Planning No regression Real-World Platform tuning yields only incremental gains Layered Software approach to performance yields only incremental gains Data Sets are growing faster than Moore s law Todays code can only improve at a rate of Moore s Law Need to look algorithmically and architecturally to achieve break out performance

10 Real-World Performance 2017 Todays Real World Performance Challenges/Opportunities Observed Behavior Seen in the Real World Incorrect use of Database and Tools Applications designed for small datasets working on large datasets Performance Improvement Opportunities Order of magnitude performance improvements for data intensive workloads Reliability and Performance under load improvements for OLTP systems Management Challenges Education Investment Moving the focus from platform tuning to application code improvement

11 Real-World Performance 2017 Incorrect use of Database Unstable OLTP systems due inappropriate connection pool strategies in Middleware Connection storms and CPU oversubscription race conditions Resource leakages due to undetected programmer errors Sub optimal execution plans ( By design or by accident ) Incorrect/Outdated statistics gathering techniques Excessive/inappropriate hinting technique Inappropriate Physical design ( partitioning, indexing, compression ) Selective De-Tuning of databases in production Incorrect/legacy init.ora setting Dangerous and untested/warranted settings of underscore parameters

12 Real-World Performance 2017 Applications designed for small datasets working on large datasets Prevalence of put/get a row/object type processing in todays applications Contending designs Missed batch windows due to serial/non scalable/algorithmically weak application designs Lack of appreciation of SQL and database performance capabilities Set based coding techniques SQL pipelining techniques Transformational techniques on Big datasets

13 Real-World Performance Education Programs

14 Online Education

15 Real-World Performance Online Video Series Real-World Performance Engineers discussing and demonstrating performance issues, root causes and when to apply the correct techniques The Optimizer Core DB Performance Extreme OLTP Extreme DW

16 Real-World Performance Training

17 Real-World Performance Classroom Training Classroom Training 4 or 5 Day Class of Intensive Performance Training Topics: The Optimizer, Core DB Performance, Extreme OLTP and DW Classroom, Demos, Hands On, Test and Quizzes Training given by Real-World Performance Engineers Designed for Architects, Developers and DBAs 4 months training in 4/5 days Contact RWP or you local Oracle team to apply

18 Real-World Performance Training What you will learn Understand how the optimizer works and how it is influenced Learn the fundamentals of core database performance Database Computer Science Application Algorithms When to apply the correct tools and techniques Extreme OLTP Connection Management, Contention and Tools Extreme Data Warehousing Working with large data sets DW Techniques: Set based processing, Exadata, Database In-Memory, Parallel

19 Agenda Core Oracle Database Performance Fundamentals Extreme OLTP SQL and the Optimizer Extreme Data Warehousing Hands on Exercises

20 Real-World Performance Classroom Training Quotes Fantastic such a good course. Why can t all training be like this? The demos schooled me Content matches the real world totally different than courses offered by Oracle University Your understanding of Oracle real life problems, familiarity with computer science basics and procedures, teaching excellence, and interpersonal skills all contributed to a successful training Venkat Dulla, Qualcomm Anyone out there claiming that he/she is an Oracle DBA must attend RWP classes. We are highly experienced team of DBAs and we thought we ve seen it all until this class! Real problems that we are dealing day-to-day, like connection storms, was turned into training scenarios and explained so clearly with cause and solutions along with a diagnostic methodology it was also an eye-opener for OLTP DBAs that I/O is no longer a bottleneck with exadata and it is time to start using set operations to achieve order of magnitude performance gains Metin Ylimaz, Turkcell Best training program Oracle has ever done for Fidelity Mihir Shah Equity CIO and Corp CTO Fidelity

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