How to reduce iowait?

Discussion in 'qmail' started by popowich, Dec 30, 2011.

  1. popowich

    popowich EQ Forum Admin Staff Member

    Aug 12, 2008
    Likes Received:
    Do you have a mail server experiencing high iowait times?

    • increase your conf-split to a bigger prime number (I use 521)
    • reduce the number of incoming smtp connections by
      • improving your IP reputation and RBL filtering
      • load balancing your traffic across multiple servers
    • splitting the load across more disks or disk arrays

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