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OCPBUGS-104855: Fix PPC example CPU counts for HT compatibility (4.18) #117456

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OCPBUGS-104855: Fix PPC example CPU counts for HT compatibility (4.18) #117456

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fa44b5c
OCPBUGS-104855: Fix PPC example to use even CPU counts for HT compati…
kquinn1204 Aug 6, 2026
a043614
OCPBUGS-104855: Fix PPC wrapper script example CPU counts for HT comp…
kquinn1204 Aug 6, 2026
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7 changes: 3 additions & 4 deletions modules/cnf-running-the-performance-creator-profile-offline.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -218,11 +218,11 @@ level=info msg=---
+
[source,terminal]
----
$ ./run-perf-profile-creator.sh -t /path-to-must-gather/must-gather.tar.gz -- --mcp-name=worker-cnf --reserved-cpu-count=1 --rt-kernel=true --split-reserved-cpus-across-numa=false --power-consumption-mode=ultra-low-latency --offlined-cpu-count=1 > my-performance-profile.yaml
$ ./run-perf-profile-creator.sh -t /path-to-must-gather/must-gather.tar.gz -- --mcp-name=worker-cnf --reserved-cpu-count=2 --rt-kernel=true --split-reserved-cpus-across-numa=false --power-consumption-mode=ultra-low-latency > my-performance-profile.yaml
----
+
* `--mcp-name=worker-cnf` specifies the `worker-cnf` machine config pool.
* `--reserved-cpu-count=1` specifies one reserved CPU.
* `--reserved-cpu-count=2` specifies two reserved CPUs.
* `--rt-kernel=true` enables the real-time kernel.
* `--split-reserved-cpus-across-numa=false` disables reserved CPUs splitting across NUMA nodes.
* `--power-consumption-mode=ultra-low-latency` specifies minimal latency at the cost of increased power consumption.
Expand Down Expand Up @@ -250,8 +250,7 @@ metadata:
spec:
cpu:
isolated: 2-3
offlined: "1"
reserved: "0"
reserved: "0-1"
machineConfigPoolSelector:
machineconfiguration.openshift.io/role: worker-cnf
nodeSelector:
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10 changes: 4 additions & 6 deletions modules/cnf-running-the-performance-creator-profile.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -136,18 +136,17 @@ level=info msg=---
+
[source,terminal,subs="attributes+"]
----
$ podman run --entrypoint performance-profile-creator -v <path_to_must_gather>:/must-gather:z registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v{product-version} --mcp-name=worker-cnf --reserved-cpu-count=1 --rt-kernel=true --split-reserved-cpus-across-numa=false --must-gather-dir-path /must-gather --power-consumption-mode=ultra-low-latency --offlined-cpu-count=1 > my-performance-profile.yaml
$ podman run --entrypoint performance-profile-creator -v <path_to_must_gather>:/must-gather:z registry.redhat.io/openshift4/ose-cluster-node-tuning-rhel9-operator:v{product-version} --mcp-name=worker-cnf --reserved-cpu-count=2 --rt-kernel=true --split-reserved-cpus-across-numa=false --must-gather-dir-path /must-gather --power-consumption-mode=ultra-low-latency > my-performance-profile.yaml
----
+
* `-v <path_to_must_gather>` specifies the path to either of the following components:
** The directory containing the `must-gather` data.
** The directory containing the `must-gather` decompressed .tar file.
* `--mcp-name=worker-cnf` specifies the `worker-cnf` machine config pool.
* `--reserved-cpu-count=1` specifies one reserved CPU.
* `--reserved-cpu-count=2` specifies two reserved CPUs.
* `--rt-kernel=true` enables the real-time kernel.
* `--split-reserved-cpus-across-numa=false` disables reserved CPUs splitting across NUMA nodes.
* `--power-consumption-mode=ultra-low-latency` specifies minimal latency at the cost of increased power consumption.
* `--offlined-cpu-count=1` specifies one offlined CPU.
+
[NOTE]
====
Expand All @@ -161,7 +160,7 @@ level=info msg="Nodes targeted by worker-cnf MCP are: [worker-2]"
level=info msg="NUMA cell(s): 1"
level=info msg="NUMA cell 0 : [0 1 2 3]"
level=info msg="CPU(s): 4"
level=info msg="1 reserved CPUs allocated: 0 "
level=info msg="2 reserved CPUs allocated: 0-1 "
level=info msg="2 isolated CPUs allocated: 2-3"
level=info msg="Additional Kernel Args based on configuration: []"
----
Expand All @@ -184,8 +183,7 @@ metadata:
spec:
cpu:
isolated: 2-3
offlined: "1"
reserved: "0"
reserved: "0-1"
machineConfigPoolSelector:
machineconfiguration.openshift.io/role: worker-cnf
net:
Expand Down