A W i d e r V i e w

Experimentations and ruminations on Oracle performance management.

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About Me

Craig Shallahamer Founder and President of OraPub, Inc.: I am an Oracle performance researcher, writer, teacher, and speaker based in Portland, Oregon USA.

I thrive on helping DBAs solve really difficult performance problems through my classes, consulting, papers, books, papers, and person-to-person email.

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Blog Archive

▼ 2011 (23)
- ▼ December (2)
  - Singular CBC Latch Acquisition Pattern Diagnosis
  - Important article published in DB Trends magazine
- ► November (2)
  - CBC Latch Diagnosis & Acquisition Patterns
  - Are you sure it's the index root block?
- ► October (1)
  - Understanding Wait Event Time Patterns
- ► September (1)
  - Anticipating SQL Elapsed Times
- ► August (2)
  - Why tuning Oracle works and modeling it
  - True SQL Elapsed Times... gathering
- ► July (2)
  - Focus on training...rest of 2011
  - CBC latches, CPU consumption, and wait time
- ► June (2)
  - Impact of Consistent Reads
  - Cores vs Threads...Part 3
- ► May (2)
  - Cores vs Threads: Util Difference...Part2B
  - Cores vs Threads: Util Differences...Part 2
- ► April (2)
  - Giving Twitter A Try...@CShallahamer
  - Core vs Thread...CPU Utilization - Part 1
- ► March (1)
  - New IOUG Session: Unit of Work Time Based Analysis...
- ► February (3)
- ► January (3)

► 2010 (21)
- ► December (1)
  - IO Read Wait Occurrence Mismatch - Part 1
- ► November (1)
  - The Average Challenge... Part 1
- ► October (2)
  - Commit time vs log file sync time
  - Locks and Latches...What a Difference!
- ► September (1)
  - Buffer Cache Visualization and Tool
- ► July (2)
  - More on user calls
  - The OS CPU run queue; not what it appears
- ► June (4)
- ► May (3)
- ► April (3)
- ► February (2)
  - How mutexes sleep
  - Gotta love latch classes
- ► January (2)
  - The mystery surrounding 11g and direct reads
  - First entry.

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