topic Re: SY-DATUM inside Parallel Processing in Application Development and Automation Discussions

SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 17:45:15 GMT

Hi guys,

I'm working with parallel processing of multiple function modules using STARTING NEW TASK. I want to know how long is taking some subroutines inside these FM's. I'm passing SY-DATUM to an internal table at the beginning and at the end of some subroutines. When I check the internal tables returned by the FM's, the times are the same.

Does SY-DATUM work in Parallel Processing? Does it store the time when the task begins?

Thanks,

Raú

Re: SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 17:50:52 GMT

Sy-datum contains a date...you're expecting the jobs to run more than one day? probably not, so look at this:

data: lv_start type i,
                   lv_end type i,
                   lv_time type i,
                  lv_seconds type i.
get run time field lv_start.      "stores system clock in microseconds
   
* execute your step(s)...

get run time field lv_end.   "stores system clock in microseconds.

 lv_time = lv_end - lv_start.  "in microseconds (1/1000000 of a second). 
 lv_seconds =  lv_time / 1000000.  "wall clock seconds

...etc.

Re: SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 17:54:53 GMT

Sorry, I mean SY-UZEIT. I'm using both.

Re: SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 18:20:14 GMT

The system data SY-UZEIT (but I suppose SY-DATUM too) is always the time when the process starts

If you want to know the real data for a certain moment, you need to refresh them by statament GET TIME

See the help for details

Max

Re: SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 19:30:17 GMT

sy-uzeit wont work..

just a simple test...

data: t1 type i, t2 TYPE sy-uzeit, t3 type tzonref-tstamps.
DO 5  TIMES.
  wait UP TO 1 SECONDS.
  GET RUN TIME FIELD t1.
  GET TIME FIELD t2.
  get time STAMP FIELD t3.
  WRITE:/ sy-uzeit, ':', t1, ':', t2, ':', t3.
ENDDO.

so better you need to use GET TIME STAMP.

Re: SY-DATUM inside Parallel Processing

Former Member — Thu, 02 Dec 2010 19:34:04 GMT

In Performance Tuning presentations, SAP shows GET RUN TIME command....