From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-178.mta0.migadu.com (out-178.mta0.migadu.com [91.218.175.178]) (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 1D7371E5201 for ; Mon, 1 Jun 2026 02:09:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.178 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780279783; cv=none; b=eldgbylSzQSGhoGpwi0A2lrfK9hni5yEZsM3fwtGg1Wagt/AObQxJpYvA3s66LdTjgeqDw2RMN+ZKuOBLqrbketCrtQ7zfkWrUUz7uwONxesW375LwM/PjeYsRxK/JPRKQPgdkg5NLBmMl1Lxna5J/TUN82TbmYDuV99X+snJgs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780279783; c=relaxed/simple; bh=QZP2A85Xqcg3HNc+IXmr6vnqo/AcJ5uB8mZrB6Cw5/k=; h=MIME-Version:Date:Content-Type:From:Message-ID:Subject:To:Cc: In-Reply-To:References; b=Mjt+TIs0uzTSDalUDrHeXdGaZG9O8Wf/GjLzgGibSaiae3xefd20n0sqCkeqK/FiL5tAXwtujYa6hiqv7dUQkHUxNFRrdikbc4kAv3XZ2MPub0b2I0RqXRnWivF+tlq7B6mdixcR0YXFNdGb/hn+lVb99BEaNW4N/9Y3mCKjslU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Z5vH0pPX; arc=none smtp.client-ip=91.218.175.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Z5vH0pPX" Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1780279779; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=iDDfOFWy/TEWE9TK1LtUw0BuKs5gwFlMEYe/+sdHufE=; b=Z5vH0pPXLNpa0KFp9XL3PskVWUujMvCVP+qR6Dg5C6yYUAlM7lZAlnt8kPUAS41+c8vxuZ uRTIXsBiHU9oCpqYcF9ADzh0GXsF5YFt6qG9f/ltRhuK+HifqeTGKWWtCeh4LNnJg6ozlE pvOnmYr/SnamjcAvKZ/4FzeeTVN1cYI= Date: Mon, 01 Jun 2026 02:09:37 +0000 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: "Kunwu Chan" Message-ID: <1d19bb24fe6c1f6935ef078f7d7461e73590f21c@linux.dev> TLS-Required: No Subject: Re: [PATCH] mm/damon: fix stale TLB young-state handling on arm64 To: "SeongJae Park" Cc: "SeongJae Park" , "Kunwu Chan" , "Wang Lian" , akpm@linux-foundation.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org In-Reply-To: <20260531162457.98724-1-sj@kernel.org> References: <20260531162457.98724-1-sj@kernel.org> X-Migadu-Flow: FLOW_OUT June 1, 2026 at 12:24 AM, "SeongJae Park" wrote: >=20 >=20On Sun, 31 May 2026 12:16:49 +0000 "Kunwu Chan" wrote: >=20 >=20[...] >=20 >=20>=20 >=20> We think that makes sense. Explaining the rationale for not flushin= g TLB, > > the limitations this can introduce for tests, and recommendations fo= r > > choosing reliable test working set sizes would be helpful. > >=20 >=20Thank you for kindly accepting my suggestion. >=20 Thanks,=20SJ. > >=20 >=20> If we later find cases where the documented recommendations are sti= ll > > insufficient, we can revisit more intrusive approaches. > >=20=20 >=20> I'd be happy to help with the documentation work if needed. Please= let > > me know if you'd like me to prepare a draft patch. > >=20 >=20Yes, please feel free to send a patch! :) >=20 Will=20send it once I have something ready. Thanks, Kunwu > Thanks, > SJ >=20 >=20[...] >