linux-kernel - Re: [PATCH v2] Enable haltpoll for arm64

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Message-ID: <96ed7928-b979-672c-9551-1739e00ca148@linux.com>
Date: Wed, 17 Jan 2024 13:19:06 -0800 (PST)
From: "Christoph Lameter (Ampere)" <cl@...ux.com>
To: Mihai Carabas <mihai.carabas@...cle.com>
cc: linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org, 
    linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
    catalin.marinas@....com, will@...nel.org, tglx@...utronix.de, 
    mingo@...hat.com, bp@...en8.de, x86@...nel.org, hpa@...or.com, 
    pbonzini@...hat.com, wanpengli@...cent.com, vkuznets@...hat.com, 
    rafael@...nel.org, daniel.lezcano@...aro.org, akpm@...ux-foundation.org, 
    pmladek@...e.com, peterz@...radead.org, dianders@...omium.org, 
    npiggin@...il.com, rick.p.edgecombe@...el.com, joao.m.martins@...cle.com, 
    juerg.haefliger@...onical.com, mic@...ikod.net, arnd@...db.de, 
    ankur.a.arora@...cle.com
Subject: Re: [PATCH v2] Enable haltpoll for arm64

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.