Debugging Dynamic Memory Usage Errors Using HP WDB (5900-1474; WDB 6.2; January 2011)

6. Select View->Memory Usage->Incremental Heap to view the incremental heap profile.
7. The Incremental Heap View window displays the incremental heap profile graph
for the program
The incremental heap profile graph can be plotted based on the outstanding
allocations in the program or the actual heap profile, as follows:
• To view the incremental heap profile graph based on the outstanding allocations,
select the Allocation option in the Plot Graph frame. The Allocation Profile
displays the outstanding allocations (in KB) in the program with a unique color
coding for each interval.
• To view the incremental heap profile graph based on the actual heap profile,
select the Actual Heap option in the Plot Graph frame. The Heap Space Profile
displays the heap size in KB for the program.
To specify the time interval for displaying the incremental heap profile, you must
select the Select Time option and specify the start time and the end time from the
Start Time list menu and the End Time list menu. The listings for time in the Start Time
list menu and the End Time list menu are calculated by dividing the total program
execution time into five equal intervals. Additionally, you can enter a custom start
time, or a custom end time for displaying the incremental heap profile.
To view the incremental heap profile summary, click Summary Table. The summary
table displays the record ID, the start time, the end time, the heap interval, the heap
start, the heap end, the heap size in bytes, the number of allocated bytes, and the
number of blocks used for all the collected incremental heap profile records. Click
on the required incremental heap profile record to view the block allocation details
for the corresponding record.
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