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Merge pull request #80071 from kquinn1204/OCPBUGS-35405

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OCPBUGS-35405 Enabling cgroup v2 is not possible if you are using performance profiles.
This commit is contained in:
Alex Dellapenta
2024-08-08 15:38:40 -06:00
committed by GitHub
parent 2f7664f372 10f57799c6
commit 7afdcfec7f
2 changed files with 6 additions and 1 deletions
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2
modules/nodes-clusters-cgroups-2.adoc
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@@ -37,7 +37,7 @@ endif::nodes[]
[NOTE]
====
Currently, disabling CPU load balancing is not supported by cgroup v2. As a result, you might not get the desired behavior from performance profiles if you have cgroup v2 enabled. Enabling cgroup v2 is not recommended if you are using performance profiles.
In Telco, clusters using `PerformanceProfile` for low latency, real-time, and Data Plane Development Kit (DPDK) workloads automatically revert to cgroups v1 due to the lack of cgroups v2 support. Enabling cgroup v2 is not supported if you are using `PerformanceProfile`.
====
.Prerequisites

5
scalability_and_performance/low_latency_tuning/cnf-tuning-low-latency-nodes-with-perf-profile.adoc
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@@ -19,6 +19,11 @@ You can restrict CPUs for infra and application containers, configure huge pages
Learn about the Performance Profile Creator (PPC) and how you can use it to create a performance profile.
[NOTE]
====
In Telco, clusters using `PerformanceProfile` for low latency, real-time, and Data Plane Development Kit (DPDK) workloads automatically revert to cgroups v1 due to the lack of cgroups v2 support. Enabling cgroup v2 is not supported if you are using `PerformanceProfile`.
====
include::modules/cnf-about-the-profile-creator-tool.adoc[leveloffset=+2]
include::modules/cnf-gathering-data-about-cluster-using-must-gather.adoc[leveloffset=+2]