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How to set the these parameters on postgresql.conf ?
What I should consider while setting them?
What should I monitor?

#vacuum_cost_delay = 0ms                
#vacuum_cost_page_hit = 1                
#vacuum_cost_page_miss = 10             
#vacuum_cost_page_dirty = 20            
#vacuum_cost_limit = 200    

is there any good tutorial or example?

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2 Answers

up vote 1 down vote accepted

The postgres docs are the best place to start

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This really depends on your system, and what kind of load it has to handle. Got 100 SSD drives on a SAN with 8Gigs of battery backed cache? Got a single 5400RPM SATA drive?

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