On Sat, 2010-01-16 at 11:59 +0000, Andy Blanchard wrote: > 2010/1/16 Jean Francois Martinez <jfm512@xxxxxxx>: > > No it isn't. In 32 bits mode the processor only has a paltry eight > > registers and in addition it is limited to a brain damaged stack model > > for floating point. In 64 bits it has sixteen registers and possibly, > > not sure about it, a healthier floating point model. > > Which is why I wrote: "There are some advantages..." > > > So out of curiosity I converted flac to ogg in both modes and it is 30% > > faster in 64 bits > > Well, it would be. That would come under the part about "manipulating > large chunks of data that can be processed 64 bits at a time instead > of 32." > I fail to understand how manipulating 16 bit values can benefit of 64 bits instead of 32. I still think it is the 16 registers and thus far less restrictive than "large chunks of data processed 64 bits at a time" > But all that is beside the point. The original query was about > drivers that were clearly broken in the 64bit version but potentially > OK in the 32bit version and not whether 64bit was better than 32bit. > That's why I suggested using the 32bit version as a workaround, > ideally using a Live CD before re-installating in case it was broken > as well, and wait for the bugs to be squished. Ok, but later you told that 64 bits brought nothing for people who had less than 4Gs of RAM JF Martinez -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
