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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B265CC4332F for ; Mon, 13 Nov 2023 18:50:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231624AbjKMSuU (ORCPT ); Mon, 13 Nov 2023 13:50:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231607AbjKMSuR (ORCPT ); Mon, 13 Nov 2023 13:50:17 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C3AAF171F; Mon, 13 Nov 2023 10:50:14 -0800 (PST) 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=IGnj/oSG6+zMy3aPMMPNinY1f2iziubTjwUJyW/5HPI=; b=OuAHd8ldaeJn1DmSsSIjmFvKHh cHW9zIRxkl/fBvKr5iuAOw3ZcguOeKFGMpEx/pyG/zWhseCXO+ECfn9vUts/OsifAzTEp6ZRFV5Zb fzzsdUBdQqiqE/8VSx2aTaczaFtFfAWW36LPEJ8rDEm5IXD9Tr/Urap6XECpMkUsakT/dxPyU7heC TWGT4hr1KPc7ypGyYQ28iw8nWpDDaA2CZp71dy6ce/4ayRP0FN68nnXvqd9vbckjBZFKfZCUf5g/F 4fdqZR/3RuWPLFvKjDrlrWRrOX7Wk68zcmC0ydnA0Z5JYPgWhDhmQ9GDxnElOQqrG2yeiXu5kVnZA juE7ParQ==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1r2c0V-00FsCZ-82; Mon, 13 Nov 2023 18:49:59 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id E38B5300427; Mon, 13 Nov 2023 19:49:58 +0100 (CET) Date: Mon, 13 Nov 2023 19:49:58 +0100 From: Peter Zijlstra To: Namhyung Kim Cc: Josh Poimboeuf , Steven Rostedt , Ingo Molnar , Arnaldo Carvalho de Melo , linux-kernel@vger.kernel.org, x86@kernel.org, Indu Bhagat , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , linux-perf-users@vger.kernel.org, Mark Brown , linux-toolchains@vger.kernel.org Subject: Re: [PATCH RFC 04/10] perf: Introduce deferred user callchains Message-ID: <20231113184958.GA7901@noisy.programming.kicks-ass.net> References: <20231111184908.ym4l6cwzwnkl7e6m@treble> <20231113172106.GA12501@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 13, 2023 at 09:48:32AM -0800, Namhyung Kim wrote: > Yeah, I thought something like this first, but then I thought > "can we just use PID for this?" TID, and assuming things are otherwise time ordered, yes.