Jeremy Kerr <[email protected]> writes: > Rather than testing single bits in a loop, change AllocSetFreeIndex to > use the __builtin_clz() function to calculate the chunk index.
Per subsequent discussion and testing, I've committed a patch that uses a lookup table instead of depending on __builtin_clz(). http://archives.postgresql.org/message-id/[email protected] regards, tom lane -- Sent via pgsql-hackers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
