<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Dec 18, 2015 at 3:14 PM, gflwqs gflwqs <span dir="ltr"><<a href="mailto:gflwqs@gmail.com" target="_blank">gflwqs@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 dir="ltr"><div><div>Ok<br></div>So i can still benefit from haswell performance?<br></div></div></blockquote><div><br></div><div>It depends: if your specific applications takes advantages on the haswell specific feature no, in general why not.</div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><br></div>/Christian<br></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">2015-12-18 14:51 GMT+01:00 Simone Tiraboschi <span dir="ltr"><<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span>On Fri, Dec 18, 2015 at 1:02 PM, gflwqs gflwqs <span dir="ltr"><<a href="mailto:gflwqs@gmail.com" target="_blank">gflwqs@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div><div><div><div><div><div><div><div>Hi,<br></div>I have registered a new DELL R730 machine in ovirt 3.5.6 this server type has a Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz.<br></div>When i try to add a the new host to a cluster with a haswell architecure i get an error:<br>"Host xxx moved to Non-Operational state as host does
not meet the cluster's minimum CPU level. Missing CPU features :
model_Haswell"<br><br></div>When i look at the hardware tab on the host it says:<br></div>CPU Model: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz<br></div>and<br>CPU Type: Intel SandyBridge Family<br><br></div>This is not a SandyBridge Family processor?<br><br></div>When i change the cluster to be a SandyBridge Family cluster the host can be activated.<br><br></div><div>What are my options?<br></div><div>- Is it a bug i can get a fix for? (I can't upgrade to 3.6)<br></div><div>- Can i force it to report correctly?<br></div><div>- What am i loosing in terms of functionality/performance if ovirt thinks its a SandyBridge processor?<br><br></div></div></blockquote><br></span>It's a bugged Haswell CPU where the TSX feature has been hardware disabled by Intel with a microcode upgrade due to an hardware bug:<br><a href="http://www.anandtech.com/show/8376/intel-disables-tsx-instructions-erratum-found-in-haswell-haswelleep-broadwelly" target="_blank">http://www.anandtech.com/show/8376/intel-disables-tsx-instructions-erratum-found-in-haswell-haswelleep-broadwelly</a><br><br><a href="https://bugzilla.redhat.com/show_bug.cgi?id=1218673" target="_blank">https://bugzilla.redhat.com/show_bug.cgi?id=1218673</a><br> <br>You loosed the TSX feature (Transactional Synchronization eXtensions).</div><div class="gmail_quote"><br></div><div class="gmail_quote"><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr"><div></div><div>Thanks!<br></div><div>/Christian<br></div><div><br><br></div><div><br></div></div>
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