On 2014-01-26 07:24:58 +0100, Tomas Vondra wrote:
> Not sure how to interpret that, though. For example where did the
> ginCompareItemPointers go? I suspect it's thanks to inlining, and that
> it might be related to the performance decrease. Or maybe not.
Try recompiling with CFLAGS="-fno-omit-frame-pointers -O2" and then use
perf record -g. That gives you a hierarchical profile which often makes
such questions easier to answer.
Greetings,
Andres Freund
-- Andres Freund http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training &
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