Confirm calculus

Good morning List

In relation to the process of tuning the engine PostgreSQL database, especially
7.3.7 version that is being used currently, agreaceria me clarify a procedure

If I have a server with 2 GB of RAM, it is said that the shared memory segment for
the engine of the database on a dedicated server should be between 25% and maximum 33% of the RAM.

I'm doing the calculation would be the next agradeze I confirm if I am
correct

1 MB = 1,048,576
* 2 = 2097152 1048576
25% would be 2097152 * 25 / 100 = 524288
Then the shared_buffers should be 524288 / 8 = 65536 for 25% of 2 GB
or should be 524 288?

Sincerely.

Juan Pablo Sandoval Rivera
Tecnologo Prof. en Ing. de Sistemas

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