From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5183955D896 for ; Wed, 9 Sep 2026 13:14:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788959672; cv=none; b=PeJxP3i2atw1eTuwUWjnz7XrG6PgDp8uRB77Qwe1hd4qS60PebEbn3ZkwLYmqQdsm0+GqPutb9gd3sZHsGxVjGoArmLShXvxSqhqmW4jx+u06X7p1R3hVh1mlL/7ZLr+pXxpgI8ZmY/wprbQ/CLjmZdmwDZhcSx7/QNZkXh/k48= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788959672; c=relaxed/simple; bh=o14skGXw1Dxp4PucfILVhMa2vKoRpn9E2Tqf7ERODZ0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hEmpiIIzLs+nuQHrIqWYtA8x4mlu4lBUoHKXDilQXp72GQGCnwRoEin1MHFZKvwSungXEwD6ig0nrP9m/83Qa3aiO2MQNyG4sf8/ST+vncH7paJQcKoAd3/4ubu8+2PRdFvDdeA7tgnBijBkPorPbff7rbr9Mzmztf6ib8LNoYM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=pass smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=ihU8Daeu; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ihU8Daeu" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=hZDvF9mi528xRDbkT0RZ9EfBD5t2cfkdz03k0WhiM1U=; b=ihU8Daeub9rsgC1qoX+WTtPoIy fGW9+56Jy0DAiYbKW589aYu0OIa8wTURggq0eNPMRoX8muggfbLlyQlrrWnA0AutBp41VzdycKmya p5KekcJHKana4W7F0pztyJ/xLJquUhIZOs2eoyCK8f6qgL6f5U5O8AAH7fhBjQTXvcwA/9QJh4sbP ZKr1fIVcF3l2vKVVzhnrB7Dl6Y5CH9hiDua1q0T3OmOsa4uka9s+SEmDDrtJ2AzLLcynG+dkXYthQ cKe13jtbaMTSWiHQHnWtckUCozHf+m8GSKgOjYdZ7kleKAwnm2Qmf2D/Jhyjsw1RvS8LJOuDQ8VAz 8NV7IfcQ==; Received: from 77-249-17-252.cable.dynamic.v4.ziggo.nl ([77.249.17.252] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.99.1 #2 (Red Hat Linux)) id 1x4I80-00000005gw5-13Hn; Wed, 09 Sep 2026 13:14:18 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id C8588300A9A; Wed, 09 Sep 2026 15:14:15 +0200 (CEST) Date: Wed, 9 Sep 2026 15:14:15 +0200 From: Peter Zijlstra To: Andrea Righi Cc: Ingo Molnar , Juri Lelli , Vincent Guittot , Catalin Marinas , Will Deacon , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Valentin Schneider , K Prateek Nayak , Mark Rutland , Christian Loehle , Shrikanth Hegde , Phil Auld , Breno Leitao , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v5 0/2] sched: Enable preferred SMT siblings on NVIDIA Olympus Message-ID: <20260909131415.GB4120091@noisy.programming.kicks-ass.net> References: <20260909062649.469633-1-arighi@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260909062649.469633-1-arighi@nvidia.com> On Wed, Sep 09, 2026 at 08:26:07AM +0200, Andrea Righi wrote: > Andrea Righi (2): > arm64: topology: Prefer PE0 on NVIDIA Olympus SMT cores > sched/fair: Honor asymmetric SMT priority in idle selection > > arch/arm64/include/asm/topology.h | 1 + > arch/arm64/kernel/smp.c | 1 + > arch/arm64/kernel/topology.c | 51 +++++++++++++++++++++++ > kernel/sched/fair.c | 85 +++++++++++++++++++++++++++++++-------- > kernel/sched/sched.h | 6 +++ > kernel/sched/topology.c | 36 +++++++++++++++++ > 6 files changed, 163 insertions(+), 17 deletions(-) I tentatively picked these up, but I need an arm64 ack before I can merge them, and ideally vingu will bless them too :-)