On 7/12/06, Arnold Krille <arnold.krille@xxxxxxxxx> wrote:
Okay, I don't have space (and time) for a second partition. And while I understand that my testing might not be the optimum test, I think your's isn't either: Because you compare fully using a 64bit system with using a 64bit system in 32bit-mode. It is like comparing a big motorcycle with the same motorcycle but slowed down. For sure the slowed-down version will not be as fast. Also german IT-newspaper c't has made some comparisons when opteron64 and intel xeons with 64bit went onto the market Their result was that the amd64 are faster than the intel64. And surprisingly enough the amd64 in 32-bit mode where almost as fast as in 64-bit mode while the intels where significantly slower in 32-bit mode than in 64-bit mode...
Hmm... I don't understand your point here. FYI: My message was to say the motorcycle but slowed down is actually faster some times. I am not native English speaker, so maybe it was not clear. The 64 bit extensions are documented on White Paper on AMD site; I think they are public, though I've obtained mine by other means (I've read them because I work right now as a driver and hardware engineer, at low level programming, in case you wonder). They are not to make your processor faster. Faster computing can be archived as a consequence, but it is not always the case. Even, I've read something from AMD people saying that 32bit mode is faster (and even recommended) for some tasks. Instead of trying to guess things, you should make tests (this is a mere suggestion, don't take it as a mandate or something...). I think you will be surprised, as I was. I was also thinking that new 64bit mode was always faster until did some tests. I've tested both AMD and Intel. That is the reason for being interested in hear some tests with audio apps. Yes, I *think* that multimedia software should be faster on 64bit, but real tests would be appreciated to confirm. Merely saying that it is faster because it should be does not make any sense to me, since I've seen sometimes it is not true.
