[OpenIndiana-discuss] oracle removes 32bit x86 cpu support for solaris 11 will OI do same?

Alan Coopersmith alan.coopersmith at oracle.com
Fri Jun 24 18:22:21 UTC 2011


On 06/24/11 08:58 AM, Steve Gonczi wrote:
> For Intel CPUs, 32 bit code is certainly more compact , and in some cases 
> arguably faster than 64 bit code. (say, comparing the same code on the same machine 
> compiled 32 and 64 bit) 

But 64-bit code has access to more registers, which can make a measurable
difference for some code.   SPARC is much more like you say, since the
registers and ISA's are basically the same between the two modes, leaving
it down to things like accessing a greater range of memory vs. doubling
the memory used by every pointer address & long int.

-- 
	-Alan Coopersmith-        alan.coopersmith at oracle.com
	 Oracle Solaris Platform Engineering: X Window System




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