Measure CPU-time

[AndersS]

Hi! Is there any good way to measure the cpu-time for a SAS program?

At present I look in the SAS log and add together

user cpu-time    and system cpu-time

/Best Regards AndersS

[MargaretC · Accepted solution]

That is the correct way to do it.  

[Kurt_Bremser]

If it is a batch program, wrap the sas commandline in the time command:

time /path_to_sas/sas -log /logpath/program.log -sysin /progpath/program.sas

[SASKiwi]

With batch SAS logs a total real and CPU time for the whole job is printed at the end.

[Tom]

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@SASKiwi wrote:

With batch SAS logs a total real and CPU time for the whole job is printed at the end.

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Exactly:

>tail -n5  sassy.log
NOTE: SAS Institute Inc., SAS Campus Drive, Cary, NC USA 27513-2414
NOTE: The SAS System used:
      real time           1:17.30
      cpu time            6.09 seconds

[AndersS]

Hi!  I use "SAS on Demand for Academics". Many thanks!  / AndersS

[AndersS]

Hi!  I use "SAS on Demand for Academics". Many thanks!  / AndersS

[AhmedAl_Attar]

Hi @AndersS 

I know you marked this as solved, but if you wanted to have more elaborate measurements displayed in the log, you can use

options fullstimer;

https://documentation.sas.com/doc/en/pgmsascdc/9.4_3.5/hostunx/n0k7vnqt9p9o91n1jsl23a08l13e.htm

[AndersS]

Many thanks! /Br AndersS

[Kurt_Bremser]

System CPU time is the time used by kernel calls (like the very basic read() or write() functions), while user CPU is the time spent in the non-system code. It is therefore correct to add both numbers up to get the whole CPU used by a process (or a SAS program step).

[AndersS]

Many thanks! I am working a a FAST method for quantiles on LARGE amounts of data. / BR AndersS