On Fri, Nov 30, 2007, James Cloos <[EMAIL PROTECTED]> said: >>>>>> "Aaron" == Aaron Stone <[EMAIL PROTECTED]> writes: > > Aaron> I would be absolutely shocked if someone could find a real-world > Aaron> performance difference for DBMail running in 32 or 64 mode on the > Aaron> same chip. We just don't do enough integer calculation to matter > Aaron> a hoot, I believe. > > Given the use of INT8 (aka bigint) in the pg schema, my earlier reply in > this thread assumed that dbmail used long long or int64_t to hold those > values. If that is true, there should be an advantage to -m64 compiles > on amd64 systems. Gcc just generates better code. And the better ABI > should also make a difference -- especially for function calls.
Ok, that's a fair point - the 64 bit ABI's are definitely better. But I still don't believe that that alone will make a major difference. It might even be that the improved ABI efficiency is a wash with the increased length of data. Lots of hand-waving going on... > I'd only expect to notice the difference under load, though. Benchmarks would be awesome :-) Aaron _______________________________________________ DBmail mailing list DBmail@dbmail.org https://mailman.fastxs.nl/mailman/listinfo/dbmail
