Re: [PATCH 1/4] powerpc/topology: Introduce llc_override debug knob
From: Shrikanth Hegde
Date: Mon Oct 12 2026 - 10:21:57 EST
Hi Srikar. Thanks for taking a look at the patches.
I think we should keep disabled. So it is clear when disabled, there is no adverse#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.
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.