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Luca's blog on data engineering, data platforms, and performance.
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Blog of the database services at CERN
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Wednesday, November 18, 2015
Oracle Wait Events Investigated with Extended Stack Profiling and Flame Graphs
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Topic: this post is about investigating Oracle wait events using stack profiles and flame graphs extended with OS-process state and Oracle ...
Monday, October 26, 2015
Linux Kernel Stack Profiling and Flame Graphs Applied to Oracle Investigations
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Topic: This blog post is about kernel stack profiling and visualization with flame graphs. Context: Stack profiling and flame graphs ...
Saturday, August 29, 2015
Add Color to Your SQL
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Topic: this post is about some simple techniques to add color to SQL scripts and their terminal output using ANSI escape codes. Color...
Wednesday, July 29, 2015
Diagnose High-Latency I/O Operations Using SystemTap
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Topic: this post is about some simple tools and techniques that can be used to drill down high-latency I/O events using SystemTap probes. ...
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