Alvaro Herrera <[EMAIL PROTECTED]> writes: > Tom Lane wrote: >> "Jignesh K. Shah" <[EMAIL PROTECTED]> writes: >>> New Lock Mode Proposed: LW_EX_OWNER (input on better name will be >>> appreciated).
> We do something like this in the sinval code -- see SIGetDataEntry. Yeah, that analogy occurred to me later --- EX_OWNER would be a close match to what sinval is doing. However, adding a third mode to LWLocks would certainly introduce extra cycles into what is already a hotspot, and one use-case that is already working fine without it doesn't seem like much of an argument. (ProcArray isn't a use-case because of the commit interlock problem, and I didn't see any other proposed uses that weren't mere hand-waving.) regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers