ovirt reports an Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz as a Intel SandyBridge Family?
Hi, 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. When i try to add a the new host to a cluster with a haswell architecure i get an error: "Host xxx moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : model_Haswell" When i look at the hardware tab on the host it says: CPU Model: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz and CPU Type: Intel SandyBridge Family This is not a SandyBridge Family processor? When i change the cluster to be a SandyBridge Family cluster the host can be activated. What are my options? - Is it a bug i can get a fix for? (I can't upgrade to 3.6) - Can i force it to report correctly? - What am i loosing in terms of functionality/performance if ovirt thinks its a SandyBridge processor? Thanks! /Christian
On Fri, Dec 18, 2015 at 1:02 PM, gflwqs gflwqs <gflwqs@gmail.com> wrote:
Hi, 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. When i try to add a the new host to a cluster with a haswell architecure i get an error: "Host xxx moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : model_Haswell"
When i look at the hardware tab on the host it says: CPU Model: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz and CPU Type: Intel SandyBridge Family
This is not a SandyBridge Family processor?
When i change the cluster to be a SandyBridge Family cluster the host can be activated.
What are my options? - Is it a bug i can get a fix for? (I can't upgrade to 3.6) - Can i force it to report correctly? - What am i loosing in terms of functionality/performance if ovirt thinks its a SandyBridge processor?
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: http://www.anandtech.com/show/8376/intel-disables-tsx-instructions-erratum-f... https://bugzilla.redhat.com/show_bug.cgi?id=1218673 You loosed the TSX feature (Transactional Synchronization eXtensions).
Thanks! /Christian
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Ok So i can still benefit from haswell performance? /Christian 2015-12-18 14:51 GMT+01:00 Simone Tiraboschi <stirabos@redhat.com>:
On Fri, Dec 18, 2015 at 1:02 PM, gflwqs gflwqs <gflwqs@gmail.com> wrote:
Hi, 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. When i try to add a the new host to a cluster with a haswell architecure i get an error: "Host xxx moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : model_Haswell"
When i look at the hardware tab on the host it says: CPU Model: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz and CPU Type: Intel SandyBridge Family
This is not a SandyBridge Family processor?
When i change the cluster to be a SandyBridge Family cluster the host can be activated.
What are my options? - Is it a bug i can get a fix for? (I can't upgrade to 3.6) - Can i force it to report correctly? - What am i loosing in terms of functionality/performance if ovirt thinks its a SandyBridge processor?
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:
http://www.anandtech.com/show/8376/intel-disables-tsx-instructions-erratum-f...
https://bugzilla.redhat.com/show_bug.cgi?id=1218673
You loosed the TSX feature (Transactional Synchronization eXtensions).
Thanks! /Christian
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
On Fri, Dec 18, 2015 at 3:14 PM, gflwqs gflwqs <gflwqs@gmail.com> wrote:
Ok So i can still benefit from haswell performance?
It depends: if your specific applications takes advantages on the haswell specific feature no, in general why not.
/Christian
2015-12-18 14:51 GMT+01:00 Simone Tiraboschi <stirabos@redhat.com>:
On Fri, Dec 18, 2015 at 1:02 PM, gflwqs gflwqs <gflwqs@gmail.com> wrote:
Hi, 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. When i try to add a the new host to a cluster with a haswell architecure i get an error: "Host xxx moved to Non-Operational state as host does not meet the cluster's minimum CPU level. Missing CPU features : model_Haswell"
When i look at the hardware tab on the host it says: CPU Model: Intel(R) Xeon(R) CPU E5-2667 v3 @ 3.20GHz and CPU Type: Intel SandyBridge Family
This is not a SandyBridge Family processor?
When i change the cluster to be a SandyBridge Family cluster the host can be activated.
What are my options? - Is it a bug i can get a fix for? (I can't upgrade to 3.6) - Can i force it to report correctly? - What am i loosing in terms of functionality/performance if ovirt thinks its a SandyBridge processor?
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:
http://www.anandtech.com/show/8376/intel-disables-tsx-instructions-erratum-f...
https://bugzilla.redhat.com/show_bug.cgi?id=1218673
You loosed the TSX feature (Transactional Synchronization eXtensions).
Thanks! /Christian
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
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