Názor k článku Skúsenosti z dvojročnej prevádzky Solaris servera od LENIN POWER! - Pod solacem se provozuji na 64bit sparkach aplikace...

Pod solacem se provozuji na 64bit sparkach aplikace v 32bit modu kvuli vykonu nebo kvuli kompatibilite. A to mame rok 2008.

tady je podrobnejsi testovani, ackoliv na intelu.

http://coalface.mcslp.com/2008/02/25/comparing-32-bit64-bit-mysql-on-opensolaris/

The overall impression is that on x86 the improvement of 64-bit over 32-bit is significant enough that it’s probably a good idea to make 64-bit the default. On SPARC, the difference in the optimized builds is so slight that for compatibility reasons alone, 32-bit would probably make a better default.