Tanel Poder’s blog: Core IT for Geeks and Pros

May 25, 2008

Performance and Scalalability Improvements in Oracle 10g and 11g

Filed under: Internals, Oracle, Oracle 11g, Performance — Tanel Poder @ 8:08 pm

I have uploaded the slides of my “Performance and Scalalability Improvements in Oracle 10g and 11g” presentation here.

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2 Comments »

  1. Great! Even more plan changes over multiple executions of the same SQL.

    As if we didn’t have enough problems with optimizer plans that change at the whiff of a stat…

    Hasn’t anyone got back to Oracle the clear message that what production environments need is a STABLE and PREDICTABLE optimizer?

    Not something that keeps changing execution plans at the drop of a hat?

    I can’t wait to see what will happen in closed, non-changing environments such as Peoplesoft, JDE, Siebel and even Oracle’s own apps when this ever-changing optimizer is unleashed on them…

    At least give us the option of turning off all this unneeded overhead!

    Ah well: one can only dream…

    Thanks for the superb analysis, Tanel. Much appreciated.

    Comment by Noons — May 27, 2008 @ 9:35 am

  2. Blurring the bondaries between SGA and PGA will quickly poses the question of keeping the definition for thes 2 strucutres. Let me guess, it will be named OGA : Oracle Global Area.

    Comment by Polarski bernard — May 27, 2008 @ 2:30 pm

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