Dear Gurus ,
i have made observation of ITL waits in DB , and it lasted more than 4+hrs
i see that certain new DML was introduced newly in database , and same time
these ITL wait events triggered .
I validated top object i see 3 tables were seen as DML are using these
tables , i saw concurrency it was around 3k to 10K in 30 mins of snap .
Also table is non partitioned and it was only 3GB in size .
total execution in DAY was around 400K for all 3 DML statements , seeing
these bit surprise that how with such low concurrency its landed in issue
Also able extent management is AUTO .
i know increasing INITTRANS will help them (probably ?) but i am
suspecting its coming something out of DB , i validated OS watcher details
, i see some potential bottleneck but those stats which i suspect as
bottleneck are seen in good time as well , i validate CPU utilization
which was high during start of issue but after 10 mins it got down to 60%
but spike remain in DB , validate IO busyness trend is similar to CPU .
It will be helpful if you can share any of experience from which i can
relate and take ahead my case .
Regards,
Krishna
