topic Re: Shared Memory vs memory id in Application Development and Automation Discussions

Shared Memory vs memory id

Former Member — Wed, 25 Jan 2006 04:40:56 GMT

Hi,

What is the use of using shared memory over memory id,in

terms of performance.

regards

kaushik

Re: Shared Memory vs memory id

Former Member — Wed, 25 Jan 2006 04:46:32 GMT

Shared memory is memory that can be addressed by different processes as opposed to private memory that can only be addressed by the process that creates it.

Re: Shared Memory vs memory id

Former Member — Wed, 25 Jan 2006 04:53:06 GMT

hi,

check this SAP help link..

you can get some inputs..

http://help.sap.com/saphelp_nw04/helpdata/en/fc/eb2d40358411d1829f0000e829fbfe/frameset.htm

regards

vijay

Re: Shared Memory vs memory id

hymavathi_oruganti — Wed, 25 Jan 2006 04:59:06 GMT

There are three types of memories.

1. ABAP MEMORY

2. SAP MEMORY

3. EXTERNAL MEMORY.

1.we will use EXPORT/ IMPORT TO/ FROM MEMORY-ID when we want to transfer between ABAP memory

2. we will use GET PARAMETER ID/ SET PARAMETER ID to transfer between SAP MEMORY

3. we will use EXPORT/IMPORT TO/FROM SHARED BUFFER to transfer between external memory.

ABAP MEMORY : we can say that two reports in the same session will be in ABAP MEMORY

SAP MEMORY: TWO DIFFERENT SESSIONS WILL BE IN SAP MEMORY.

for ex: IF WE CALL TWO DIFFERENT TRANSACTIONS SE38, SE11

then they both are in SAP MEMORY.

EXTERNAL MEMORY: TWO different logons will be in EXTERNAL MEMORY.

Re: Shared Memory vs memory id

Former Member — Wed, 25 Jan 2006 05:06:31 GMT

Memory-ID is used to save and retrieve the last entered data in the field.

Eg: PARAMETERS p_vbeln for vbak-vbeln memory-id pid

Shared memory is the area that can be used to share data between different processes.

Re: Shared Memory vs memory id

Former Member — Wed, 25 Jan 2006 05:08:21 GMT

Hi kaushik,

I don't know, i may be wrong !

1. Memory id concept is a part of shared memory itself.

regards,

amit m.