14067286 - ASCP Plan Run In Test Is Running Slow - Needs Performance Tuning (Doc ID 1466571.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle Advanced Supply Chain Planning - Version 11.5.10.2 and later
Information in this document applies to any platform.

Symptoms

11.5.10 - Engine/UI patch 9000516 - RUP #39

The customer is preparing to load additional items into production. These additional items are currently in the TEST system and the plan run time is significantly higher than PRODUCTION, most likely due to the higher volume.
The completion times in the MBP log are consistently (and proportionally) higher in TEST than PRODUCTION, except for HLS where we see a disproportional difference in completion times. The customer is looking for ways to reduce the run time in TEST so that when the cutover to PRODUCTION on June 4th allows enough time for the subsequent concurrent requests to complete.
The customer currently runs the plan with plan option Planned Items = All Items. Support suggested considering other options and the customer is currently testing with Planned Items = Demand schedule items / WIP comp / all SOs. This is resulting in significant decreases in run times (but these are preliminary results and require further testing). The customer also noticed that when running this plan option, 200,000+ items show up in the Exception report as 'Items with no activity'.

Profile options are identical between the two instances.

One important note when reviewing the uploaded data files is that the additional items are loaded into production but no demands have been added yet. So during the snapshot phase, an almost identical number of items is being loaded. The MBP process, however, takes significantly longer in TEST because of the demand for these additional items that is not present yet in PRODUCTION.

The customer has no plans to upgrade the Engine/UI patch level at this point. However, Support noted that if Development runs the plan on RUP #44 instead of #39 (like the customer) and notices significant differences, we may need to ask the customer to upgrade.
This bug is a request for Development to (1) run the customer's test plan on the latest RUP and (2) provide any other performance recommendations.

Memory Based Snapshot
====================

PRODUCTION TEST
============ =====
Current system time is 10-MAY-2012 02:48:50 Current system time is 10-MAY-2012 17:06:41
Selecting Items 258,752 0:09 Selecting Items 246,823 0:07
.Updated msc_system_items 214,153 0:37 Updated msc_system_items 206,137 0:16
Concurrent request completed successfully Concurrent request completed successfully
Current system time is 10-MAY-2012 03:08:11 Current system time is 10-MAY-2012 17:27:40
 
 
Memory Based Planner
====================

PRODUCTION TEST
============ =====
Current system time is 10-MAY-2012 03:07:47 Current system time is 10-MAY-2012 17:27:37
.Load data completed 2:59 .Load data completed 7:05
..Scheduling completed 9:44 ..Scheduling completed 44:47
.Generate data completed 14:01 .Generate data completed 57:00
.Exceptions completed 0:33 .Exceptions completed 1:57
.Flush output completed 3:09 .Flush output completed 17:06
Total Planning Time 20:42 Total Planning Time 83:08
Total memory usage: 1707256 Total memory usage: 4708953
Concurrent request completed successfully Concurrent request completed successfully
Current system time is 10-MAY-2012 03:28:31 Current system time is 10-MAY-2012 18:50:47

Cause

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