linux-kernel - Re: [PATCH v2 00/12] sched: Address schbench regression

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Message-ID: <de989df6-3484-4298-bfee-6256e30d69d4@meta.com>
Date: Wed, 2 Jul 2025 11:27:20 -0400
From: Chris Mason <clm@...a.com>
To: Peter Zijlstra <peterz@...radead.org>, mingo@...hat.com,
        juri.lelli@...hat.com, vincent.guittot@...aro.org,
        dietmar.eggemann@....com, rostedt@...dmis.org, bsegall@...gle.com,
        mgorman@...e.de, vschneid@...hat.com
Cc: linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/12] sched: Address schbench regression

On 7/2/25 7:49 AM, Peter Zijlstra wrote:
> Hi!
> 
> Previous version:
> 
>   https://lkml.kernel.org/r/20250520094538.086709102@infradead.org 
> 
> 
> Changes:
>  - keep dl_server_stop(), just remove the 'normal' usage of it (juril)
>  - have the sched_delayed wake list IPIs do select_task_rq() (vingu)
>  - fixed lockdep splat (dietmar)
>  - added a few preperatory patches
> 
> 
> Patches apply on top of tip/master (which includes the disabling of private futex)
> and clm's newidle balance patch (which I'm awaiting vingu's ack on).
> 
> Performance is similar to the last version; as tested on my SPR on v6.15 base:

Thanks for working on these! I'm on vacation until July 14th, but I'll
give them a shot when I'm back in the office.

-chris