On Mon, Nov 28, 2016 at 9:20 AM, Thomas Munro <thomas.mu...@enterprisedb.com> wrote: > It would work, but I suppose you might call it overkill. If they were > cooperating to build the bitmap in parallel then a barrier might look > more tempting, because then they'd all be waiting for each other to > agree that they've all finished doing that and are ready to scan. > When they're all just waiting for one guy to flip a single bit, then > it's debatable whether a barrier is any simpler than a condition > variable + a spinlock + a bit!
+1 -- Regards, Dilip Kumar EnterpriseDB: http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
