Apologies if this is already answered elsewhere. I came across this today:
Wait Classes by Total Wait Time
Wait ClassWaitsTotal Wait Time (sec)Avg Wait (ms)% DB timeAvg Active
Sessions
System I/O 14,677 4,485 305.60 100.3 2.5
User I/O 281,109 4,128 14.69 92.3 2.3
Other 3,498 241 68.84 5.4 0.1
DB CPU 123 2.7 0.1
Commit 751 33 43.60 .7 0.0
Application 10 29 2870.26 .6 0.0
Concurrency 1,384 2 1.56 .0 0.0
Network 4,691 0 0.04 .0 0.0
Configuration 1 0 144.65 .0 0.0
Scheduler 8 0 0.20 .0 0.0
Host CPU
I can understand the DB time greater than wall clock time. But how can "%DB
time" be way over 100%? Or am I not interpreting this correctly? v12.1 on
Linux.
Thanks
Ram.
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