TELCODOCS-1990: Docfooding feedback openshift#6 applied

Author: Padraig O'Grady

modules/cnf-performing-end-to-end-tests-running-cyclictest.adoc

@@ -13,14 +13,6 @@ The `cyclictest` tool measures the real-time kernel scheduler latency on the spe
 When executing `podman` commands as a non-root or non-privileged user, mounting paths can fail with `permission denied` errors. To make the `podman` command work, append `:Z` to the volumes creation; for example, `-v $(pwd)/:/kubeconfig:Z`. This allows `podman` to do the proper SELinux relabeling.
 ====
 
-.Prerequisites
-
-* You have logged in to `registry.redhat.io` with your Customer Portal credentials.
-
-* You have installed the real-time kernel in the cluster.
-
-* You have applied a cluster performance profile by using Node Tuning Operator.
-
 .Procedure
 
 * To perform the `cyclictest`, run the following command, substituting variable values as appropriate:

modules/cnf-performing-end-to-end-tests-running-hwlatdetect.adoc

@@ -13,12 +13,6 @@ The `hwlatdetect` tool is available in the `rt-kernel` package with a regular su
 When executing `podman` commands as a non-root or non-privileged user, mounting paths can fail with `permission denied` errors. To make the `podman` command work, append `:Z` to the volumes creation; for example, `-v $(pwd)/:/kubeconfig:Z`. This allows `podman` to do the proper SELinux relabeling.
 ====
 
-.Prerequisites
-
-* You have installed the real-time kernel in the cluster.
-
-* You have logged in to `registry.redhat.io` with your Customer Portal credentials.
-
 .Procedure
 
 * To run the `hwlatdetect` tests, run the following command, substituting variable values as appropriate:

modules/cnf-performing-end-to-end-tests-running-oslat.adoc

@@ -13,11 +13,6 @@ The `oslat` test simulates a CPU-intensive DPDK application and measures all the
 When executing `podman` commands as a non-root or non-privileged user, mounting paths can fail with `permission denied` errors. To make the `podman` command work, append `:Z` to the volumes creation; for example, `-v $(pwd)/:/kubeconfig:Z`. This allows `podman` to do the proper SELinux relabeling.
 ====
 
-.Prerequisites
-
-* You have logged in to `registry.redhat.io` with your Customer Portal credentials.
-* You have applied a cluster performance profile by using the Node Tuning Operator.
-
 .Procedure
 
 * To perform the `oslat` test, run the following command, substituting variable values as appropriate:

modules/cnf-performing-end-to-end-tests-running-the-tests.adoc

@@ -13,11 +13,6 @@ Run the cluster latency tests to validate node tuning for your Cloud-native Netw
 When executing `podman` commands as a non-root or non-privileged user, mounting paths can fail with `permission denied` errors. Depending on your local OS and SELinux configuration, you might also experience issues running these commands from your home directory. To make the `podman` commands work, run the commands from a folder that is not your home directory, and append `:Z` to the volumes creation. For example, `-v $(pwd)/:/kubeconfig:Z`. This allows `podman` to do the proper SELinux relabeling.
 ====
 
-.Prerequisites
-
-* Using the `podman login` command, you have logged in to `registry.redhat.io` with your Customer Portal credentials.
-
-
 .Procedure
 
 . Open a shell prompt in the directory containing the `kubeconfig` file.

scalability_and_performance/low_latency_tuning/cnf-performing-platform-verification-latency-tests.adoc

@@ -15,12 +15,16 @@ The `cnf-tests` container image is available at `registry.redhat.io/openshift4/c
 
 Your cluster must meet the following requirements before you can run the latency tests:
 
-. You have configured a performance profile with the Node Tuning Operator.
+. You have installed the real-time kernel in the cluster.
 
 . You have applied all the required CNF configurations in the cluster.
 
+. You have applied and configured a cluster performance profile by using the Node Tuning Operator.
+
 . You have a pre-existing `MachineConfigPool` CR applied in the cluster. The default worker pool is `worker-cnf`.
 
+. You have logged in to `registry.redhat.io` with your Customer Portal credentials by using the `podman login` command. 
+
 [role="_additional-resources"]
 .Additional resources