How to decide buffer sizes for specific size of RAM

Hi sdners.
Generally, how can we decide the buffer sizes which are shown in the ST02 screen. suppose we have 100GB ram /5GB ram, then how can we decide the related buffer sizes...and generally which buffer takes more place in the RAM
Thanks in advance.

Hi balaji
You can tune your SAP buffer by the statistics of Hit Ratio and swap occuring. There should not be no swap on your system. you can adjust your buffer value by the optimizing the both value.
Regards
Anwer Waseem
SAP BASIS

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