Q

High System% usage

I have observed a high System% usage, around 38%, by Oracle 9i. The 'strace' tool didn't give any conclusive data. Could you suggest a way to identify the reason for the high System% usage?

I have observed a high System% usage, around 38%, by Oracle 9i. The 'strace' tool didn't give any conclusive data. Could you suggest a way to identify the reason for the high System% usage?
What wait events are showing up on the statspack reports?

Look to the wait interface to see what is causing waits. There are also some bugs with undocumented bitmap-related

parameters ("__b_tree_bitmap_plans") that can cause this, but look at the Oracle wait interface first.

This was first published in July 2005

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