Re: performance hit with --enable-debug

Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
>> The effect in terms of query execution speed is probably minimal. The
>> problem is that the executables get about 15% larger, which can lead to
>> longer load times, more memory usage, and ultimately to some speed issues.

> Not sure about the longer load times.

I don't believe that either. The debug symbol tables aren't part of the
memory-resident image, they just sit out there on disk ... at least in
Unixen that I'm familiar with.

I think this is worth looking at more closely. I can't see any reason
that Tom should be seeing a 30x performance hit from --enable-debug;
there's something going on here that I don't understand.

regards, tom lane