You can monitor the memory usage of a process by taking a series of snapshots over regular time intervals of the memory currently allocated and committed.
svmon -P [pid] -m -r -i [interval] > output.filename
Use the -r flag to print the address range.
Because the Java™ heap is allocated using mmap() or shmat(), it is clear whether memory allocated to a specific segment of memory (under 'Esid') is allocated to the Java or the native heap. The type and description fields for each of the segments allows the determination of which sections are native or Java heap. Segments allocated using mmap or shmat are listed as "mmap mapped to" or "extended shm segments" and are the Java heap. Segments allocated using malloc will be marked as "working storage" and are in the native heap. This demarcation makes it possible to monitor the growth of the native heap separately from the Java heap (which should be monitored using verbose GC).
------------------------------------------------------------------------------- Pid Command Inuse Pin Pgsp Virtual 64-bit Mthrd LPage 29670 java 87347 4782 5181 95830 N Y N Vsid Esid Type Description LPage Inuse Pin Pgsp Virtual 50e9 - work - 41382 0 0 41382 Addr Range: 0..41381 9dfb - work - 28170 0 2550 30720 Addr Range: 0..30719 ddf3 3 work working storage - 9165 0 979 10140 Addr Range: 0..16944 0 0 work kernel seg - 5118 4766 1322 6420 Addr Range: 0..11167 c819 d work text or shared-lib code seg - 2038 0 283 6813 Addr Range: 0..10219 2ded f work working storage - 191 0 20 224 Addr Range: 0..4150 f5f6 - work - 41 14 4 45 Addr Range: 0..49377 6e05 2 work process private - 35 2 23 58 Addr Range: 65296..65535 1140 6 work other segments - 26 0 0 26 Addr Range: 0..32780 cdf1 - work - 2 0 0 2 Addr Range: 0..5277 e93f - work - 0 0 0 0 3164 c mmap mapped to sid 1941 - 0 0 - - 2166 - work - 0 0 0 0 496b b mmap mapped to sid 2166 - 0 0 - - b51e - clnt /dev/fslv00:44722 - 0 0 - - Addr Range: 0..207 ee1c a mmap mapped to sid e93f - 0 0 - - 1941 - work - 0 0 0 0 1081 7 mmap mapped to sid 9dfb - 0 0 - - edf5 8 mmap mapped to sid 50e9 - 0 0 - - c01b 9 mmap mapped to sid cdf1 - 0 0 - -
1081 7 mmap mapped to sid 9dfb - 0 0 - -is described against Vsid 9dfb, which reads as follows:
9dfb - work - 28170 0 2550 30720 Addr Range: 0..30719