DBAsupport.com Forums - Powered by vBulletin
Results 1 to 3 of 3

Thread: cache table

  1. #1
    Join Date
    May 2003
    Location
    Pretoria, Rep of South Africa
    Posts
    191

    Question cache table

    I read a previous post after a search on "cache table" on this site.
    The conclusion was that one should not cache large tables to memory,because it will flood it.Use cache for small tables

    My problem:My "application data viewer" uses 3 distinct large tables(large:blocks>4000)
    on a regular basis. The i/o and buffer usage is expensive.

    Question 1:Will the caching of these 3 tables in memory(Keep) NOT improve the performance of my apps.data viewer.
    (The availability of memory is not a big issue)
    Question 2:Should i rather cache meta tables(small) to mem.for performance improvement.


    Please advise
    thanx in advance
    Able was I ere I saw Elba

  2. #2
    Join Date
    Nov 2002
    Location
    New Delhi, INDIA
    Posts
    1,796
    For caching the large tables use the storage parameter (buffer_cache recycle). That way when ever the large tables are loaded into the memory it will not push the existing data from the default cache. Use storage parameter (buffer_cache keep) to pin the small tables.

    HTH
    Amar
    "There is a difference between knowing the path and walking the path."

    Amar's Blog  Get Firefox!

  3. #3
    Join Date
    May 2003
    Location
    Pretoria, Rep of South Africa
    Posts
    191
    Thank you for your reply. I will test and implement if everything is in place.
    Able was I ere I saw Elba

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


Click Here to Expand Forum to Full Width