On Wed, May 4, 2011 at 3:10 PM, Mitsuru IWASAKI <iwasaki@jp.freebsd.org> wrote:
> Postgres usually starts with ZERO buffer cache. By saving the buffer
> cache data structure into hibernation files just before shutdown, and
> loading them at startup, postgres can start operations with the saved
> buffer cache as the same condition as just before the last shutdown.
Offhand this seems pretty handy for benchmarks where it would help get
reproducible results.
--
greg