<div dir="ltr">Hi Mark,<div><br></div><div>I agree that these are slightly noticeable but they are far less than accessing a NIC on the "wrong" socket, etc.</div><div><br></div><div>Scott</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jun 22, 2017 at 9:26 AM, Mark Hahn <span dir="ltr"><<a href="mailto:hahn@mcmaster.ca" target="_blank">hahn@mcmaster.ca</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
But now, with 20+ core CPUs, does it still really make sense to have<br>
dual socket systems everywhere, with NUMA effects all over the place<br>
that typical users are blissfully unaware of?<br>
</blockquote>
<br></span>
I claim single-socket systems already have NUMA effects, since multiple<br>
layers (differently-shared) of cache have the same effect as memory at different hop-distances.<br>
<br>
regards, mark hahn.<div class="HOEnZb"><div class="h5"><br>
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