Greg Smith <[EMAIL PROTECTED]> writes: > On Fri, 19 Sep 2008, Greg Stark wrote: >> This is a good example of why running with assertions enabled on production >> might not be a good idea. But it's also a good example of why we should do >> our performance testing with assertions enabled if we can do it without >> invalidating the results.
> The performance impact of assertions is large enough that I don't think > that goal is practical. Well, there are certain things that --enable-cassert turns on that are outrageously expensive; notably CLOBBER_FREED_MEMORY and MEMORY_CONTEXT_CHECKING. It wouldn't be too unreasonable to decouple those things somehow (with a means more accessible than editing pg_config_manual.h). I don't think anyone knows what the performance impact of just the regular Asserts is; it's been too long since these other things were stuck in there. regards, tom lane -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers