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Posted to commits@cloudstack.apache.org by "shwstppr (via GitHub)" <gi...@apache.org> on 2026/03/27 07:44:09 UTC
[PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
shwstppr opened a new pull request, #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636
Related https://github.com/apache/cloudstack/pull/12637
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "shwstppr (via GitHub)" <gi...@apache.org>.
shwstppr commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4222232508
@abh1sar can you please consider this for 4.20.3?
@blueorangutan docbuild
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "blueorangutan (via GitHub)" <gi...@apache.org>.
blueorangutan commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4251337461
@abh1sar a Jenkins job has been kicked to build the document. I'll keep you posted as I make progress.
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "abh1sar (via GitHub)" <gi...@apache.org>.
abh1sar merged PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "blueorangutan (via GitHub)" <gi...@apache.org>.
blueorangutan commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4251344322
QA-Doc build preview: https://qa.cloudstack.cloud/builds/docs-build/pr/636. (QA-JID 518)
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "abh1sar (via GitHub)" <gi...@apache.org>.
abh1sar commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4251332983
@blueorangutan docbuild
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "blueorangutan (via GitHub)" <gi...@apache.org>.
blueorangutan commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4222234973
@shwstppr a Jenkins job has been kicked to build the document. I'll keep you posted as I make progress.
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "blueorangutan (via GitHub)" <gi...@apache.org>.
blueorangutan commented on PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#issuecomment-4222241635
QA-Doc build preview: https://qa.cloudstack.cloud/builds/docs-build/pr/636. (QA-JID 514)
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Re: [PR] kvm,compute-offering: prevent CPU limiting completely [cloudstack-documentation]
Posted by "DaanHoogland (via GitHub)" <gi...@apache.org>.
DaanHoogland commented on code in PR #636:
URL: https://github.com/apache/cloudstack-documentation/pull/636#discussion_r3085166208
##########
source/adminguide/service_offerings.rst:
##########
@@ -249,6 +249,9 @@ To create a new compute offering:
- **CPU cap**: Whether to limit the level of CPU usage even if spare
capacity is available.
+ .. note::
+ On KVM hypervisor, to allow CloudStack to relinquish CPU usage control entirely, set this option to false and set CPU speed to zero. Note that Instances with zero CPU speed offerings should not be co-hosted with Instances using non-zero CPU speed offerings, as the CPU speed value is used as a relative weight (share) in the ``cputune`` section of the domain XML, and mixing zero and non-zero values would skew the weighting.
Review Comment:
```suggestion
On KVM hypervisor, to allow CloudStack to relinquish CPU usage control
entirely, set this option to false and set CPU speed to zero. Note that Instances
with zero CPU speed offerings should not be co-hosted with Instances using
non-zero CPU speed offerings, as the CPU speed value is used as a relative
weight (share) in the ``cputune`` section of the domain XML, and mixing zero
and non-zero values would skew the weighting.
```
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