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The following commit(s) were added to refs/heads/4.20 by this push:
new 50a5b96f kvm,compute-offering: prevent CPU limiting completely (#636)
50a5b96f is described below
commit 50a5b96f559f56bf39448191d6bcc8f57b390e57
Author: Abhishek Kumar <[email protected]>
AuthorDate: Wed Apr 15 16:17:20 2026 +0530
kvm,compute-offering: prevent CPU limiting completely (#636)
* kvm,compute-offering: prevent CPU limiting completely
Related https://github.com/apache/cloudstack/pull/12637
Signed-off-by: Abhishek Kumar <[email protected]>
* Apply suggestion from @DaanHoogland
Co-authored-by: dahn <[email protected]>
---------
Signed-off-by: Abhishek Kumar <[email protected]>
Co-authored-by: Abhisar Sinha <[email protected]>
Co-authored-by: dahn <[email protected]>
---
source/adminguide/service_offerings.rst | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/source/adminguide/service_offerings.rst
b/source/adminguide/service_offerings.rst
index c84de4ec..23064910 100644
--- a/source/adminguide/service_offerings.rst
+++ b/source/adminguide/service_offerings.rst
@@ -249,6 +249,14 @@ 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.
+
- **Volatile**: If checked, Instances created from this service offering
will have their root disks reset upon reboot. This is useful for
secure environments that need a fresh start on every boot and for
