2 Replies Latest reply on Sep 6, 2005 2:35 AM by Andrew Oliver

    SMTP so fast...POP...not so fast

    Andrew Oliver Master

      Why is POP slower than SMTP. Dramatically so. Of course I'm over SSL but still I'm over SSL for SMTP. Is it MySQL blobs?

        • 1. Re: SMTP so fast...POP...not so fast
          Michael Barker Apprentice

          Personally I have more questions than answers.

          - What size are the messages?
          - Do we know which commands are slow? Specifically is it LIST or RETR? There are some optimisation we can do around LIST.
          - How many messages are in the mailbox when we execute LIST?
          - What setting do you have for the mail store? Is compression enabled? What is the page size set to?

          It would be interesting to compare the performance on MySQL to PostgreSQL. The paged store implemenation won't be the most performant, however reads should still be quicker that write. We may have to look at doing some profiling at some point.


          • 2. Re: SMTP so fast...POP...not so fast
            Andrew Oliver Master

            I set up your account on set. Give it a try. Message size doesn't seme to matter. LIST seems fine. RETR is the problem. I have the installer defaults (which I took from the dev jboss-service.xml).