From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from gentwo.org (gentwo.org [62.72.0.81]) (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 C3793250E8; Wed, 17 Jan 2024 21:19:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.72.0.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705526349; cv=none; b=EAFZVareZa3T/NEMOL+B7CDwI1yrNd2YBddexNI4gV0GbZ/ddq9dJ6WsnXeFgmLaEzFsZ+WCFRPyXa3dXeqv0ab43vqgyO3TpfUo83qVpi0P1ePuY8BrI+vM0cb8WlvwAy4ksWG5jxkc8tEY8NTqdnK64hnP6+6ue/9tHwhoD1U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705526349; c=relaxed/simple; bh=ttyDCLNNMgQEc8e9KdahxH70xGwli3IpEIEtIx9HpG4=; h=Received:Received:Date:From:To:cc:Subject:In-Reply-To:Message-ID: References:MIME-Version:Content-Type; b=kTf2ERbQvhj4Hv6od3qD7zwvk/sQ1GXKcyJl8kfLvthqEbVli3SPRfWZo/4b1qi2pNueQc7oxG1/hM1e//jzvWozJSiJQ/EgSt+5R3vcm8Epr2P4FszZEoKATYC9fnVbVNtUxPJH2Z7YVpSzunxhlzYnycxjmg1X5tiZjh8uRrk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com; spf=fail smtp.mailfrom=linux.com; arc=none smtp.client-ip=62.72.0.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=linux.com Received: by gentwo.org (Postfix, from userid 1003) id 99A0E40A8B; Wed, 17 Jan 2024 13:19:06 -0800 (PST) Received: from localhost (localhost [127.0.0.1]) by gentwo.org (Postfix) with ESMTP id 972ED40A85; Wed, 17 Jan 2024 13:19:06 -0800 (PST) Date: Wed, 17 Jan 2024 13:19:06 -0800 (PST) From: "Christoph Lameter (Ampere)" To: Mihai Carabas cc: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, x86@kernel.org, hpa@zytor.com, pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com, rafael@kernel.org, daniel.lezcano@linaro.org, akpm@linux-foundation.org, pmladek@suse.com, peterz@infradead.org, dianders@chromium.org, npiggin@gmail.com, rick.p.edgecombe@intel.com, joao.m.martins@oracle.com, juerg.haefliger@canonical.com, mic@digikod.net, arnd@arndb.de, ankur.a.arora@oracle.com Subject: Re: [PATCH v2] Enable haltpoll for arm64 In-Reply-To: <1700488898-12431-1-git-send-email-mihai.carabas@oracle.com> Message-ID: <96ed7928-b979-672c-9551-1739e00ca148@linux.com> References: <1700488898-12431-1-git-send-email-mihai.carabas@oracle.com> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed On Mon, 20 Nov 2023, Mihai Carabas wrote: > This patchset enables the usage of haltpoll governer on arm64. This is > specifically interesting for KVM guests by reducing the IPC latencies. Any updates on this one? We see good improvements with this patchset using a variety of loads on Ampere platforms.