On Sun, Sep 13, 2015 at 11:09 AM, Ildus Kurbangaliev
<i.kurbangaliev@postgrespro.ru> wrote:
> This is pretty much the same that my patch does. There is
> two API calls (for a size determination and a tranche creation), except
> MainLWLockArray is used only for individual LWLocks.
It's not really the same. Your patch doesn't provide any interlock to
ensure that the number of locks requested for a particular subsystem
during shmem sizing is the same as the number actually created during
shmem setup. That's an interlock I'd really like to have.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
