es/implementation=std

[rakesh_ranjan]

My SAP Kernel Release is 700, 64 bit Linux system.

As per SAP Note 941735, it seems es/implementation=std is better option over es/implementation=map.

can anyone tell me why es/implementation=std is better than es/implementation=map?

[nelis · Accepted solution]

can anyone tell me why es/implementation=std is better than es/implementation=map?

The short answer: On 32bit systems you can only address 2-3GB of memory per process whereas on 64bit systems there are far less restrictions to memory and therefore no need to map extended memory.

The long answer: Read Note 386605 - SAP Memory Management for Linux (32-bit)

Nelis

[Former Member · Accepted solution]

Hy,

some SAP notes about tmpfs:

Note 706071 - Linux - Memory in tmpfs is not released correctly

Note 941735 - SAP memory management for 64-bit Linux systems

http://www.redhat.com/f/pdf/rhel/Oracle-10-g-recommendations-v1_2.pdf?sc_cid=70160000000HeqXAAS