onload utility runtime performance issue
Posted in 2024
Topics: Performance & Tuning, Migration, Import/Export & Data Conversion
Hi
We have a problem with the onload utility runtime. We performing a full database load with onload. (the db is ~800 GB).
Currently the onload was executed more then 80 hours. I think there is a performance issue.
How can I improve the runtime for the onload utility?
Adding more AIO vp or adding more cleaner thread.
Instance : IDS 12.10FC7
thanks
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Gábor Fekete
Software Engineer
Capital Systems
Budapest
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With no performance metrics & data, it is hard to say what the issue is. Art ------------------------------ Art S. Kagel, President and Principal Consultant ASK Database Management Corp. www.askdbmgt.com ------------------------------
There could be a number of things.
How long did the onunload take?
When you check the CPU usage during the load, are there
individual
cores that are very busy? Maybe use mpstat or nmon (AIX) to view this. It's not so much
overall
CPU usage, but that of individual cores that might be limiting the speed.
What TAPEBLK are you using?
Are you loading from a local filesystem or a network share?
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Mike Walker
xDB Systems, Inc
www.xdbsystems.com
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