topic Re: Checking Memory consumption in Application Development and Automation Discussions

Checking Memory consumption

Former Member — Tue, 26 Jan 2010 16:30:40 GMT

Hello gurus,

Can anybody point me to some documentation/link that shows how to analyze the memory usage (consumption of memory) at different stages of a program execution. We are running some programs that has to set an indicator for some historical data and running into some memory issues and the memory is not freed up even after releasing the object references and using all possible ABAP statements to release memory.

I want to analyze the program by running it in debug mode and check how the memory is being consumed/refreshed in an online execution. I tried analyzing using SM50, but I think my approach is incorrect. Can somebody help?

Thanks,

Raja

Re: Checking Memory consumption

HermannGahm — Tue, 26 Jan 2010 16:53:04 GMT

Hi Raja,

the debugger is a very good starting point.

in the new deugger display the memory analysis tools (you can find it in new tool, special tools) and check the

top memory consumers at various points during program execution.

Alternatively you can create snapshots (services of the memory analysis tools or with method WRITE_MEMORY_CONSUMPTION_FILE( ) of class CL_ABAP_MEMORY_UTILITIES (but don't do it in loops or too often) and use S_MEMORY_INSPECTOR to analyze and compare these snapshots.

Kind regards,

Hermann

Re: Checking Memory consumption

Former Member — Thu, 04 Feb 2010 20:13:46 GMT

here you go

http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/233be990-0201-0010-3d9b-c0fa722763f4?quicklink=index&overridelayout=true

Re: Checking Memory consumption

Former Member — Fri, 05 Feb 2010 15:03:41 GMT

Thank you both... Herman and Mahalakshmi. I figured out some good ways to use the transactions and classes SAP supplied for analyzing memory utilization.

Herman: Your answer was useful and I learnt it the hard way.

Maha: Thanks for the wonderful document.

Raja