I have an interesting problem I would like some help in explaining....

Oracle 8.0.5 EE


The situation is like this; I had 4 MTS processes that were utilizing 100% of the cpu time on the machine for about 6 hours this afternoon. These four processes were the same user ( application login ) running the same sql statement. Each process had a high number of waits, db file sequential read values and no actual i/o activity ( as seen by sar -d ).

I would greatly appreciate any insight anyone can give me to help me understand what might have caused this to occur. I should be able to post any additional information that you think is needed.