Results 1 to 2 of 2

Thread: Fg Writes

  1. #1
    Join Date
    May 2004
    New York

    Question Unanswered: Fg Writes

    Hi, I'm getting a few Fg Writes in a day, what should I do to make them go away?

    a have 120000 buffers

    LRU min is 50 max is 60, the cleaners are set to 1 and lru's are 8.

    I'm planing on changing the number of cleaners to 4, and lowering lru's to 30 and 20.

    Any other sugestions?

  2. #2
    Join Date
    Apr 2003
    Phoenix, AZ
    well, "a few" FG writes is not bothersome, what's important is how this number relates to your LRU and Chunk writes. I suspect that with only one cleaner (Gag!) and your ratios set that high that you have a very high rate of chunk writes - which is what you really want to reduce. You have 60K dirty pages before you start to clean!

    As a starting point, for cleaners, two per device. Drop your LRU max and min to as low as 5/2 or 2/1.
    Fred Prose

Posting Permissions

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