Could you post the URL for the trace file
again.

One observation - 3,000 commits per 
minute seems very odd for processing 
230 sales order lines per minute.

Also 3,000 commits per minute doesn't
seem to be consistent with the trace file
which I can no longer see that had one
update executed twice, updating 86,000
rows or so.

You can look at x$kcbfwait to identify
which file the v$waitstat waits cam from.

Clearly the application is somewhat 
defective, and solving it by fiddling with
the database may be a forlorn hope,
but if you haven't tried it yet, a log buffer
of 10MB might help - on the other hand
it might just make all the log file syncs
last longer.

Do you have figures for 
    total elapsed run time
    total wait time on log file sync
    total wait time on tx enqueues
    total CPU used
for the duration of the run ?


Jonathan Lewis

Seminars on getting the best out of Oracle
Last few places available for Sept 10th/11th
See http://www.jlcomp.demon.co.uk/seminar.html




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