On Feb 16, 2008 11:14 AM, Jan S Berg <Jan.Berg at sun.com> wrote: > >> 2.4 SMF > >> > >> We will use the already delivered smf metafile as well as a > >> smf startup script. We will add a property to the smf service > >> for choosing between 32 and 64 bit. Default will be the architecture > >> you are running on. > >> > > > > What's the name of the new property? List it in the exported interface > > table as well. > > > We are proposing to call it "arch", but if there is a standard way of > naming this > we would like to use that, although haven't found any.
The apache is 'httpd/enable_64bit'. While it's some sort of precedent, and I like it better than 'arch' (which sounds to me more like sparc vs x86), I'm not entirely convinced. > > Is 64bit overwhelmingly always the better choice when running on a > > 64bit platform? (Enough so that it should be the default?) > > > I have not been running that much performance testing with MySQL 32 vs > 64, but from experience > with other databases it is not always the best choice. It was pointed > out by Peter in this thread that > 64bit version on x86 was mostly the better choice. > There is no good way of predicting which should be default. I would expect that 32-bit is the safe default. On sparc, I wouldn't expect a benefit in most cases; on x86 then you might have a system that only runs as 32-bit. -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
