RE: Physical Reads and Writes

  • From: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>
  • To: Bill Zakrzewski <bill@xxxxxxxxxxxx>, ORACLE-L <oracle-l@xxxxxxxxxxxxx>
  • Date: Fri, 28 Aug 2009 13:15:17 -0700

I forgot to mention, I'm not talking about the db cache here - those wouldn't 
show up in the sar output at all, I'm talking about the filesystem buffer cache 
of your OS (unless you're using direct or raw IO).


From: Bill Zakrzewski [mailto:bill@xxxxxxxxxxxx]

very little chance all reads are satisfied by the database cache.

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