On larger Linux machines, we have been running with spin locks replaced by generic posix mutexes for years now. I personally haven't look at the code for ages, but we maintain a patch which pretty much does the same thing still:
Ref: http://www.postgresql.org/message-id/4fede0bf.7080...@schokola.de I understand that there are systems out there which have less efficient posix mutex implementations than Linux (which uses futexes), but I think it would still be worth considering to do away with the roll-your-own spinlocks on systems whose posix mutexes are known to behave. Nils -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
