Tuesday, December 24, 2013

Update For: Recording ADF BC View Object Instance Activation Time

You may have seen my previous blog post - Recording ADF BC View Object Instance Activation Time. This post describes how to track activation events time for individual VO's, so you can understand how much activation process may slow down your ADF system runtime performance. I was testing it in stress test environment and discovered issue related to activation start time logging - start time variable value was lost in some cases and set as NULL. Today post describes a fix, activation time is logged more accurate with information from ADF BC AMStatistics helper utility class.

Here you can download updated sample application - stresstest_v6.zip. This sample logs activation time for each individual VO, including AM and VO names, number of fetched rows and activation label (this helps to group activation events from individual VO's and understand total exceeded time per AM activation event for all VO's):

As you can see, for the second VO - same activation label is assigned, this is because both VO's were activated during the same AM activation event:

VO with longest activation time reported in the same AM activation event group, always is activated last. Longest time represent total time for AM activation in the given activation event.

There are two VO activated, because there are two VO's included into ADF UI page - Jobs and Departments, both of them are activated (AM pool is switched off for test purpose):

Instead of logging AM activation start time in the separate method and keeping start time in VO class variable, as it was before - now I'm using only single method activateCurrentRow and within this method getting AM start time from AMStatistics class. AM start time represents time when AM was started during current activation event. As AM always starts first before any VO is activated, we can use this info in our method:

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