Re: [PATCH 0/4] powerpc/topology: Introduce llc_override debugfs

On 10/12/26 5:49 PM, Srikar Dronamraju wrote:

* Shrikanth Hegde [off-list ref] [2026-10-12 15:50:33]:


Hi Shrikanth,

quoted

There is a new feature in scheduler called as Cache Aware Scheduling [1].
It tries to keep related tasks within the same LLC domain while
keeping the system reasonably balanced.

Cache Aware Scheduling assumes that the scheduler LLC domain is large enough
to be a useful placement target. This is true on many systems where an LLC spans
several cores, but not on PowerPC systems where the scheduler-visible LLC is at
the SMT level. In that case, sd_llc_size is effectively the SMT width.

Can we add a reference to the earlier attempt to try MCLLC a few years back.

Ah yes. will add it.

It is this one.
https://lore.kernel.org/all/1617341874-1205-1-git-send-email-ego@linux.vnet.ibm.com/ (local)

But I couldn't find an email id of Gautham which won't bounce. Based on what i know :)