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DFSORT/ICETOOL :: RE: Sort Large record length

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Author: cmsmoon
Posted: Tue Apr 11, 2017 7:27 pm (GMT 5.5)

Robert Sample wrote:
It sounds like your problem is not sorting but something else -- 60,000 records in 9 hours is about 2 records per second and that is WAY off. I just looked at one of our SMF jobs and SAS sorted 17,561 records in 5.31 seconds of elapsed time and 3.65 seconds of CPU time. For a sort to run for 9 hours, it should involve hundreds of millions or even billions of records. Record length has little to do with how long a sort takes, so why tell us the records are 30,000 bytes long?

I'd start by looking at:
- WLM policy
- REGION size of the SORT step
- channel / device contention

Quote:
is it any other way or sort technic to sort quickly?
You are asking the WRONG question -- SORT can run much, much, MUCH faster than 60,000 records in 9 hours, so you need to ask what is causing the slowdown at your site? Contact your site support group and work with them because the performance of your sort is nothing less than abysmal.


Sorry... I have checked the whole jobs taken 9 hrs and the particular sort step taking 4 hours. I hope sort technic for quickly process.I do not know why it took these much time (4hrs) to process 60000 records.Can we tune sort or any other sort technic we have?
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Thanks & Regards
Saravanan CM


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