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Oh awesome. I was not aware of "lstopo". Thanks! Interesting thing -
for me "virsh capabilities" and "lstopo" display same information.
id, core_id and siblings values seem to match. I mean id is always
same as core_id therefore siblings value makes sense. No idea why
its different on your cpu. Technical stuff im not aware of.<br>
<br>
<div class="moz-cite-prefix">On 2016.03.05 01:37, Jeff wrote:<br>
</div>
<blockquote
cite="mid:CADyg6PjBEXYW2rN8pk18FHE0cRs0fhefFxE16+cQW7aoNBrUrg@mail.gmail.com"
type="cite">
<div dir="ltr">The output of lstopo shows that 0-6, 1-7, etc...
are paired, which is what I originally assumed (as a 4790k is
0-4, 1-5, with similar architecture so I'd assume similar), but
different from the virsh capabilities output (which did not list
siblings correctly for me)
<div>Pic: <a moz-do-not-send="true"
href="https://www.dropbox.com/s/m79l36e32f08b8d/out.png?dl=0">https://www.dropbox.com/s/m79l36e32f08b8d/out.png?dl=0</a>
<div>XML: <a moz-do-not-send="true"
href="https://www.dropbox.com/s/wr93edyszlpcosm/summary.xml?dl=0">https://www.dropbox.com/s/wr93edyszlpcosm/summary.xml?dl=0</a></div>
<div>
<div>So with all of that said, is it safe to say the
pairings are 0-6, 1-7, 2-8, 3-9, 4-10, 5-11 for a 5930k?</div>
<div>Just want to make sure.</div>
<div>Thanks!<br>
<div><br>
</div>
</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Fri, Mar 4, 2016 at 1:09 PM, Jeff <span
dir="ltr"><<a moz-do-not-send="true"
href="mailto:bungee91@gmail.com" target="_blank">bungee91@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="HOEnZb">
<div class="h5">
<div dir="ltr">
<div>Interesting, relevant results below:</div>
<div><br>
</div>
<div><topology></div>
<div> <cells num='1'></div>
<div> <cell id='0'></div>
<div> <memory
unit='KiB'>32839588</memory></div>
<div> <cpus num='12'></div>
<div> <cpu id='0' socket_id='0'
core_id='0' siblings='0'/></div>
<div> <cpu id='1' socket_id='0'
core_id='0' siblings='1'/></div>
<div> <cpu id='2' socket_id='0'
core_id='1' siblings='2'/></div>
<div> <cpu id='3' socket_id='0'
core_id='1' siblings='3'/></div>
<div> <cpu id='4' socket_id='0'
core_id='2' siblings='4'/></div>
<div> <cpu id='5' socket_id='0'
core_id='2' siblings='5'/></div>
<div> <cpu id='6' socket_id='0'
core_id='3' siblings='6'/></div>
<div> <cpu id='7' socket_id='0'
core_id='3' siblings='7'/></div>
<div> <cpu id='8' socket_id='0'
core_id='4' siblings='8'/></div>
<div> <cpu id='9' socket_id='0'
core_id='4' siblings='9'/></div>
<div> <cpu id='10' socket_id='0'
core_id='5' siblings='10'/></div>
<div> <cpu id='11' socket_id='0'
core_id='5' siblings='11'/></div>
<div> </cpus></div>
<div> </cell></div>
<div> </cells></div>
<div> </topology></div>
<div><br>
</div>
<div>The siblings value is equal to the cpu id,
however the core_id looks to be on to something!</div>
<div>So if that is correct, the pairings would then be
cpu id 0 &1 = core_id 0, cpu id 2 &3 =
core_id 1, etc...</div>
<div>Does the output for yours show the siblings value
differently (as you explained it would then be cpuid
0 = siblings 1, etc...)?</div>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">
<div>
<div class="h5">On Fri, Mar 4, 2016 at 10:31 AM, Rokas
Kupstys <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:rokups@zoho.com" target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:rokups@zoho.com">rokups@zoho.com</a></a>></span>
wrote:<br>
</div>
</div>
<div>
<div class="h5">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Run "virsh
capabilities" and look for <cpus> tag. It
lists core siblings. Its what you are looking
for right? For me this script also is little
inconclusive, however seems like libvirt lists
siblings right as i cant pin one core to two
physical cores that are not siblings.
<div>
<div><br>
<br>
<div>On 2016.03.04 16:34, Jeff wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">I'm trying to distinguish
which cores are which on my Intel 5930k
processor.
<div>I ran the script at the console,
with no other additional VM's, Docker,
or plugins running (I'm running
UnRAID).</div>
<div>My output doesn't show any real
differences between the cores, all 4's
and 5's, with the expected 10 to
itself.</div>
<div>I had to modify the script a little
to run (locations for netperf and BC),
but that's really it.</div>
<div>Nothing else special to report, no
messing with governors, or the like.</div>
<div>The output of the script (pic) is
located here <a moz-do-not-send="true"
href="https://www.dropbox.com/s/nfyacpvqwy74mi2/IMG_20160302_195344%20%281%29.jpg?dl=0"
target="_blank">https://www.dropbox.com/s/nfyacpvqwy74mi2/IMG_20160302_195344%20%281%29.jpg?dl=0</a></div>
<div><br>
</div>
<div>Thanks!</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
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