- Page 1: Millsap’s Grand Unified Theory of
- Page 9 and 10: Millsap’s Grand Unified Theory of
- Page 11 and 12: Millsap’s Grand Unified Theory of
- Page 13 and 14: Part 1: G.U.T.
- Page 15 and 16: 1
Response
time
problems
- Page 17 and 18: Therefore...
- Page 19 and 20: Example...
- Page 21: Why should you care?
- Page 24 and 25: Example...
- Page 26 and 27: Why should *you* care?
- Page 28 and 29: Waste Hardware $$ Labor $$ Software
- Page 30 and 31: ...Makes other work go slower
- Page 32 and 33: ecap...
- Page 34 and 35: Part 2: Historical perspective
- Page 36 and 37: 1989 6.0.26
- Page 38: stat.sql + estat.sql = report.txt
- Page 41 and 42: Inefficiencies
- Page 45 and 46: My problem...
- Page 47: Reminded me of...
- Page 51: But who says that is what you have
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The problem with bstat/estat, ...
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and statspack, ...
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Sometimes You can't know
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What is your task's problem?
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Actually not
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Here's how it happens
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It *does* happen...
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...Until you look at the right “i
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When you don't...
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1991 (Oracle release doesn’t matt
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Imagine... Q1 and Q2 return identic
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You can't count on the ratios!
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Were wrong.
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But how?
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An Oracle developer tool since v6
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(if( your problem is sql
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Next... Inspiration
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My goal...
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Which brings me back to those “qu
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The problem...
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Tuning What we want Make some compo
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Tuning What we want Make some compo
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Tuning ? Make some component faster
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Tuning Optimization Make some compo
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The goal... Optimization! ...in a b
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Wanted...
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method = deterministic" sequence of
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Oracle Performance Improvement Meth
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*The OPIM Top Ten list 1. Bad conne
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*The OPIM Top Ten list 1. Bad conne
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*The OPIM Top Ten list 1. Bad conne
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It's like a full table scan
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What we need...
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...Whose (key( is the name of your
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Method
R
1. Target
the
rig
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Oracle extended SQL trace data
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Easier, better access to system wor
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The task perspective...
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Latche s Resource consumption (seco
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The grand unified theory
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trace data
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ASH answers questions about workloa
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G.U.T. proposition 2 You
need
t
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Who's using the most stuff?
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Can this task be performed more eff
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You don't have to trace everything
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Trace *some* tasks
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Response time problem 1. Trace data
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