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<p>Hallo Peter,</p>
<p><br></p>
<p>Mittwoch, 8. April 2009, meintest Du:</p>
<p><br></p>
<p><span class=rvts6>PK> On Wednesday 08 April 2009, Joe Landman wrote:</span></p>
<p><span class=rvts7>>> As an FYI, Beowulf veteran Jeff Layton wrote up a nice article on memory</span></p>
<p><span class=rvts7>>> configuration issues for Nehalem (I had seen some discussion on this</span></p>
<p><span class=rvts7>>> previously).</span></p>
<p><br></p>
<p><span class=rvts6>PK> Can anyone confirm that mixing different sizes of dimms, even when keeping to</span></p>
<p><span class=rvts6>PK> a by-three-symmetric configuration, actually does degrade performance?</span></p>
<p><br></p>
<p><span class=rvts6>PK> That is, first hand information that config 1 will be slower than config 2:</span></p>
<p><br></p>
<p><span class=rvts6>PK> 1: two sockets, 3x 1G and 3x 2G per socket RDIMM (total 18G @1066)</span></p>
<p><span class=rvts6>PK> 2: two sockets, 6x 1G(or 2G) per socket RDIMM (total 12G (or 24G) @1066)</span></p>
<p><br></p>
<p><br></p>
<p>I was wondering about that too - especially since Intel is using config 1 in their benchmarking center...</p>
<p><br></p>
<p>Jan</p>
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