From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6D25C3ABBE for ; Thu, 8 May 2025 14:49:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=VIbrDqfRfXUnfKDfVIMV9oKurLdvBqc15gjqf1+FoWU=; b=MqixJVl7xZZB/GNUWJPbARYCKl 9BdL/hrfr7pmZ2D08+vEm0KWzMGs56ZHTt7h2/DT02p+JyzU2KYR9wAW9YicFb8wWuGyYIFFtt27l koKLOrzHlzwENRIs3YSgi3bd9iJbRQHH/4F6kaEXldVu6ee/6SVRB31mIOssA35/GzABU4m/Sj6vr 3HUso8kKsTHyMIRdo91UqzSSV1NinbRQYzbmWHXjcfOWPOF6RzY9hSpfDYztaloB49RjNjlxZERrX 4eXDioJuBAzo/aiVM4rwl7rTb5sXHdsUQ7FYE1YWHkc0V9pPlHw7W4NGFJ3enYza9T1JXzIqi4vru rJN/wEuA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uD2Yi-00000000zdf-2YgB; Thu, 08 May 2025 14:49:12 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uD1s9-00000000r0b-2gNP for linux-arm-kernel@lists.infradead.org; Thu, 08 May 2025 14:05:14 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id CB0355C5F6B; Thu, 8 May 2025 14:02:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 113B4C4CEE7; Thu, 8 May 2025 14:05:10 +0000 (UTC) Date: Thu, 8 May 2025 10:05:23 -0400 From: Steven Rostedt To: Vincent Donnefort Cc: mhiramat@kernel.org, mathieu.desnoyers@efficios.com, linux-trace-kernel@vger.kernel.org, maz@kernel.org, oliver.upton@linux.dev, joey.gouly@arm.com, suzuki.poulose@arm.com, yuzenghui@huawei.com, kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org, jstultz@google.com, qperret@google.com, will@kernel.org, kernel-team@android.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 01/24] ring-buffer: Introduce ring-buffer remotes Message-ID: <20250508100523.750dfbaa@gandalf.local.home> In-Reply-To: References: <20250506164820.515876-1-vdonnefort@google.com> <20250506164820.515876-2-vdonnefort@google.com> <20250507194722.263a8d1e@gandalf.local.home> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250508_070513_721891_8223E00B X-CRM114-Status: GOOD ( 13.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 8 May 2025 10:10:40 +0100 Vincent Donnefort wrote: > > Hmm, I wonder if this would be worth adding to the user interface? > > Would trace-cmd have any use for those fields? That said, even if it does not at > the moment, it would mean the meta-page has a single version between > kern/user-space and hyp/kern which is probably better? I was thinking that it's better to have the consistency than user space using it. I'm not sure how much overhead it has for the normal buffer to update those fields. -- Steve