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-rw-r--r--doc/source/admin/resource-limits.rst3
1 files changed, 2 insertions, 1 deletions
diff --git a/doc/source/admin/resource-limits.rst b/doc/source/admin/resource-limits.rst
index c74ad31c17..8ef248a9a1 100644
--- a/doc/source/admin/resource-limits.rst
+++ b/doc/source/admin/resource-limits.rst
@@ -38,7 +38,8 @@ CPU limits
Libvirt enforces CPU limits in terms of *shares* and *quotas*, configured
via :nova:extra-spec:`quota:cpu_shares` and :nova:extra-spec:`quota:cpu_period`
/ :nova:extra-spec:`quota:cpu_quota`, respectively. Both are implemented using
-the `cgroups v1 cpu controller`__.
+the `cgroups cpu controller`__. Note that allowed values for *shares* are
+platform dependant.
CPU shares are a proportional weighted share of total CPU resources relative to
other instances. It does not limit CPU usage if CPUs are not busy. There is no