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Significance of Postgres (version 9.1.1) Compilation parameters - Performance

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Hi All,

 

Could anyone explain me the significance of the following compile time parameters ?

1.     --disable-integer-datetimes

2.     --disable-float4-byval

3.     --disable-float8-byval

 

Do they have any effect on performance of postgres w.r.t speed of database insert/select, amount of CPU used during insert/select ?

How can I know the default compile time parameter values?

 

The environment in which we are trying to run postgres is a freescale MCF54xx controller based board having 512MB RAM, 2GB memory with custom built Linux (32-bit environment).

 

Thanks and Regards

Jayashankar

 

Larsen & Toubro Limited

www.larsentoubro.com

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