Thread (16 messages) 16 messages, 4 authors, 11h ago

Re: [PATCH 1/4] powerpc/topology: Introduce llc_override debug knob

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From: Shrikanth Hegde <sshegde@linux.ibm.com>
Date: 2026-10-12 14:11:04
Also in: lkml

Hi Srikar. Thanks for taking a look at the patches.
   
quoted
  #endif
+
+enum llc_override_values {
+	LLC_OVERRIDE_DISABLED,
+	LLC_OVERRIDE_SMT,
+	LLC_OVERRIDE_MC,
+	LLC_OVERRIDE_PKG,
+};
+
For the current experiments, would it help to keep it simple and have just
SMT and MC. I mean we can include disabled and pkg based on our experiments.
I think we should keep disabled. So it is clear when disabled, there is no adverse
effect of it.

I think keeping pkg for experimentation seems okay. If not necessary we can remove it later.
Having at pkg gives you to try increased number of cores in a llc. So it may be a useful
too IMHO.
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