Slow exports Oracle 8.1.7.0 & 4 and " alter system flush shared_pool "

I have send this problem earlier but want to come back on it.  

We have installed several Oracle databases on different location and hardware. IBM / Compaq
I red a lot about export problems performance problems on the net but not mine.

What is the case: Normally the exports performed well dumps of 700 MB in 4 minutes but frequently the exports slows down and the same quantity of data takes 2 hours. After a few days the export performes suddenly normal again (4 minutes)

I have these slow exports frequently and they also disappear as they come.
Yesterday I had again a extremely slow export and I flushed the SGA during the export. " alter system flush shared_pool" The export startsto perform again on full speed immediatly !!

Is there a negative aspect using the " alter system flush shared_pool " command before the export. Are there any realy negative consequences using the command? Received on Tue Sep 17 2002 - 03:08:08 CDT