On Oracle
Thursday, August 27, 2015
Latch _SPIN_COUNT: adaptive
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The pseudo-code in Page 241 of Expert Oracle Database Architecture(3rd Edition) - Section: Latch "Spinning" shows that each latc...
Wednesday, July 8, 2015
Redo Practice
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Although "Undo is more complicated than redo" ( Oracle Core: Essential Internals for DBAs and Developers ), Redo performance is mo...
Thursday, July 2, 2015
UNDO Practice
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An expert is a person who has found out by his own painful experience all the mistakes that one can make in a very narrow field. ...
Thursday, June 18, 2015
Temporary LOB Memory Allocation and Freeing in JAVA
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This Blog demonstrates memory usage when creating and freeing a Temporary LOB, as well as Oracle 60025 Event for temp segment cleanup used f...
Wednesday, April 29, 2015
IBM AIX POWER7 CPU Usage and Throughput
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This Blog summaries author's observation and understanding on CPU usage of AIX POWER7 SMT4 Architecture. POWER8 content is added in Sec...
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