hit ratio
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Thread: hit ratio

  1. #1
    Join Date
    Jul 2001
    Posts
    27
    what are the bench marks for hit ratio

    with using of select * from v$system_cursor_cache;

    OPENS HITS HIT_RATIO
    ---------- ---------- ----------
    339791 339793 1.00000589

    with using of select * from v$session_cursor_cache;

    MAXIMUM COUNT OPENED_ONCE OPEN OPENS HITS HIT_RATIO
    ---------- ---------- ----------- ---------- ---------- ---------- ----------
    2500 0 0 0 0 0 1


    what is this mean ??
    thanks in advance
    sri



    [Edited by sripalli on 08-20-2001 at 09:16 PM]
    sridhar rampalli
    DBA
    singapore

  2. #2
    Join Date
    Oct 2000
    Location
    Germany
    Posts
    1,185
    What are you trying to do?

    Buffer hit ratio, library hit ratio, and dictionary hit ratio appear in the tuning material I have seen. You can get them by looking at v$sysstat, v$rowcache and v$librarycache.

    Good luck.
    David Knight
    OCP DBA 8i, 9i, 10g

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