URGENT : sql*loader performance problem on partionned table

Hi gurus,
we have two daily loads that one after the other. The first fill up a non partitionned table and the second do the same into a partitionned table.
First times the second load ran very quickly : 1 min instead of 5 min (non partitionnned table).
But now since few days, the partitionned table filling take more than 1-2 hours ! yesterday it took 14 hours !!!!
Any one has any clue ?
- Tablespaces for partitionned table used brand new separate disks

• Does it come from indexes ? should I drop them first ?

Thankx in advance!

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Author: NGUYEN Philippe (Cetelem)
  INET: philippe.nguyen_at_cetelem.fr

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