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 12E90C54EE9 for ; Wed, 31 Aug 2022 01:54:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231228AbiHaBx6 (ORCPT ); Tue, 30 Aug 2022 21:53:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229946AbiHaBx4 (ORCPT ); Tue, 30 Aug 2022 21:53:56 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2BE30B1B81; Tue, 30 Aug 2022 18:53:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Sender:Reply-To:Content-ID:Content-Description; bh=RhkN3pjenFJ3Z4sU+BUfbopmS9x7erS/IYHXt0Yrgys=; b=QysnhHPVNUGamQ7lXkzW2eGveh lrRg3+WUIjKPhlF4vYw9KekYa0WymOeuQ9HZPakLME5p5qV2twe7OuR2cUMRxXRUExVoM9Da2cXco yxjaOKLwszB82khEd88lF0vcr9JboUUXxbv1iMGT6e8sXnviYouqPSuJ+bj2WkKHW8IkoHWJTYVAa nyEihlkujx5tC79yFjtJBfsR8iMLwz25U0Q5QoAClOCZQUDuPmiYE4b2xfU5PgTlbLr8FZaKX/Pc6 90hO5RXPljYmishV1MXlptWBpBn7w9xcC6yjahtqPBxuBT6MCskGBWplJNcTqSA8jP2wkHctWyQFF e1X2LPNQ==; Received: from [2601:1c0:6280:3f0::a6b3] by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1oTCv3-0036yC-Ja; Wed, 31 Aug 2022 01:53:29 +0000 Message-ID: <241c05a3-52a2-d49f-6962-3af5a94bc3fc@infradead.org> Date: Tue, 30 Aug 2022 18:53:26 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.1.2 Subject: Re: [RFC PATCH 27/30] Code tagging based latency tracking Content-Language: en-US To: Suren Baghdasaryan , akpm@linux-foundation.org Cc: kent.overstreet@linux.dev, mhocko@suse.com, vbabka@suse.cz, hannes@cmpxchg.org, roman.gushchin@linux.dev, mgorman@suse.de, dave@stgolabs.net, willy@infradead.org, liam.howlett@oracle.com, void@manifault.com, peterz@infradead.org, juri.lelli@redhat.com, ldufour@linux.ibm.com, peterx@redhat.com, david@redhat.com, axboe@kernel.dk, mcgrof@kernel.org, masahiroy@kernel.org, nathan@kernel.org, changbin.du@intel.com, ytcoode@gmail.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, bristot@redhat.com, vschneid@redhat.com, cl@linux.com, penberg@kernel.org, iamjoonsoo.kim@lge.com, 42.hyeyoo@gmail.com, glider@google.com, elver@google.com, dvyukov@google.com, shakeelb@google.com, songmuchun@bytedance.com, arnd@arndb.de, jbaron@akamai.com, rientjes@google.com, minchan@google.com, kaleshsingh@google.com, kernel-team@android.com, linux-mm@kvack.org, iommu@lists.linux.dev, kasan-dev@googlegroups.com, io-uring@vger.kernel.org, linux-arch@vger.kernel.org, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org References: <20220830214919.53220-1-surenb@google.com> <20220830214919.53220-28-surenb@google.com> From: Randy Dunlap In-Reply-To: <20220830214919.53220-28-surenb@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org On 8/30/22 14:49, Suren Baghdasaryan wrote: > diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug > index b7d03afbc808..b0f86643b8f0 100644 > --- a/lib/Kconfig.debug > +++ b/lib/Kconfig.debug > @@ -1728,6 +1728,14 @@ config LATENCYTOP > Enable this option if you want to use the LatencyTOP tool > to find out which userspace is blocking on what kernel operations. > > +config CODETAG_TIME_STATS > + bool "Code tagging based latency measuring" > + depends on DEBUG_FS > + select TIME_STATS > + select CODE_TAGGING > + help > + Enabling this option makes latency statistics available in debugfs Missing period at the end of the sentence. -- ~Randy