Hi!
There are two commitfest entries which are linked to the same patch/thread
Move PinBuffer and UnpinBuffer to atomics
https://commitfest.postgresql.org/7/370/
and
Replace buffer manager spinlock with atomic operations
https://commitfest.postgresql.org/7/408/
Suppose, one of them could be rejected.
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/