If you have a dedicated database server with 1GB or more of RAM, a

reasonable starting value for <varname>shared_buffers</varname> is 25%

of the memory in your system. There are some workloads where even

large settings for <varname>shared_buffers</varname> are effective, but

larger settings for <varname>shared_buffers</varname> are effective, but

because <productname>PostgreSQL</productname> also relies on the

operating system cache, it is unlikely that an allocation of more than

40% of RAM to <varname>shared_buffers</varname> will work better than a