Hi<br><br>On Tuesday, 14 May 2013, Raymond Wagner wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
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Because there is more to x86_64 than just increased address space. You<br>
also have increased register space and other resources. They took the<br>
opportunity to address a number of long held deficiencies in the standard<br>
x86 instruction set, and so there are many advantages beyond simply having<br>
easier access to more memory, and the ability to do 64-bit integer<br>
operations efficiently.<br>
<br><br></blockquote><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"></blockquote><div><br></div><div> The fact is. Not all processors are equal with 64 bits mode.</div>
<div><br></div><div> A core 2 duo, running a 64 bits kernel *is* slower than a 32 bits one.</div><div>Not so long ago, got a few reports that a 0.25 version of myth wasn't playing a file well, when 0.24 was just fine. This was on a mac.</div>
<div>Turned out, by default I had made the app use 64 bits; because hey, 64 is at least twice better than 32 :)</div><div><br></div><div>Turned out, that's true on i3,i5 and i7, but not so on core 2 duo.<span></span></div>
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