On my computer SGS-Workunits are crunching two hours even though the average is about 30 minutes. I've got an Intel i5 i think.
Thanks in advance,
Your i5 is a first generation laptop i5. It's fairly slow compared to more modern desktop CPUs.
Also, while it's taking about 2 hours to run, the CPU time for each time is only about an hour and a half. Other things appear to be running on your computer, so the SGS tasks aren't running 100% of the time.
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