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  • 1.  Aix Slow

    Posted Mon August 11, 2008 01:12 AM

    Originally posted by: manu12


    Hi,

    On My Server oracle is installed. I have observed that memory was utilizing 93% to 94% using topas command but cpu utilization was only 13% to 14%.

    And disk write was 98% buzy, how to diagnize this issue.

    Wheather it was due to heavy memory utilization? can anyone suggest me?

    Regards,
    Manoj
    #AIX-Forum


  • 2.  Re: Aix Slow

    Posted Mon August 11, 2008 04:14 AM

    Originally posted by: tony.evans


    Were your users experiencing slow response?
    Did something not finish in time?

    You're looking at performance figures in isolation from response time which is never wise. AIX uses all of the memory if it can, it's better than way. Was it paging a lot? Low CPU suggests that the server wasn't being pushed very hard, how high was wait IO? What was the run queue doing?
    #AIX-Forum


  • 3.  Re: Aix Slow

    Posted Tue August 19, 2008 09:42 PM

    Originally posted by: SystemAdmin


    AIX by default uses all the memory it can so looking at your memory stats through topas is not a good indicator. There is a good paper on the IBM site regarding oracle tuning for AIX. Read that it will tell you what you need to do.
    #AIX-Forum


  • 4.  Re: Aix Slow

    Posted Wed August 20, 2008 09:53 AM

    Originally posted by: alethad


    Do you have this document? If not you should read it. It's very good and is still current info.

    Look at page 25 for the AIX parameters that Oracle suggests for more optimal performance.

    I have several Oracle database and this document has really helped me.
    Good luck.