Performance Issues when loading a 24000 item Catalogue

We are try to load a 24000 line catalogue via an XML file, we have laoded it on one system but are unable to load it on another, looking at the various settings there does not seem to be many differences if any. Can anyone suggest why this maybe happening. Also we get a ST22 error log : - "SYSTEMS_NO_ROLL"

Any help would be of great use

Some settings we have checked are : -

ztta/roll_area

2000896

ztta/roll_extension

2000683008

abap/heap_area_total

2000683008

abap/heap_area_dia

2000683008

abap/heap_area_nondia

2000683008

em/initial_size_MB

512