On 2016-05-03 11:46:23 -0500, Kevin Grittner wrote: > > was immediately addressed by another round of benchmarks after you > > pointed it out. > > Which showed a 4% maximum hit before moving the test for whether it > was "off" inline.
> (I'm not clear from the posted results whether that was before or > after skipping the spinlock when the feature was off.) They're from after the spinlock issue was resolved. Before that the issue was a lot worse (see mail linked two messages upthread). I'm pretty sure that I said that somewhere else at least once: But to be absolutely clear, I'm *not* really concerned with the performance with the feature turned off. I'm concerned about the performance with it turned on. Andres -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers