Re: [PATCH 0/4] powerpc/topology: Introduce llc_override debugfs
From: Shrikanth Hegde
Date: Mon Oct 12 2026 - 11:26:33 EST
On 10/12/26 5:49 PM, Srikar Dronamraju wrote:
* Shrikanth Hegde <sshegde@xxxxxxxxxxxxx> [2026-10-12 15:50:33]:
Hi Shrikanth,
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@xxxxxxxxxxxxxxxxxx/
But I couldn't find an email id of Gautham which won't bounce. Based on what i know :)