Re: Performance Issues/Questions

From: Andrus Adamchik (andru..bjectstyle.org)
Date: Sat Dec 12 2009 - 10:21:04 EST

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    On Dec 12, 2009, at 2:03 AM, halse..vv.ntnu.no wrote:

    >> http://spreadsheets.google.com/pub?key=tNytbSdt5wYIRTmTl4L-cCA&output=html
    >
    > If the differences are not in the database, my best guess would be
    > that
    > you are hitting the ugly synchronization on the DataRowStore since the
    > problem seem to be with concurrent commits.
    >
    > It would be very interesting to see the same test with a quickfix on
    > DataRowStore that removes all of the synchronization and uses stuff
    > from
    > java.util.concurrent instead.
    >
    > Regards,
    > - Tore.

    Yeah, very likely. Also using a profiler, like YourKit should help to
    tell why it is slowing down so much after the initial period of fast
    operation.

    Also what's a database channel? You mean a JDBC connection?

    Andrus

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