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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 14710C43441 for ; Tue, 20 Nov 2018 01:26:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DB2A7208E3 for ; Tue, 20 Nov 2018 01:26:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DB2A7208E3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732693AbeKTLwl (ORCPT ); Tue, 20 Nov 2018 06:52:41 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:55722 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726119AbeKTLwl (ORCPT ); Tue, 20 Nov 2018 06:52:41 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::bf5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 9CD7714D5D733; Mon, 19 Nov 2018 17:26:09 -0800 (PST) Date: Mon, 19 Nov 2018 17:26:07 -0800 (PST) Message-Id: <20181119.172607.44276204049639390.davem@davemloft.net> To: jolsa@kernel.org Cc: acme@kernel.org, linux-kernel@vger.kernel.org, mingo@kernel.org, namhyung@kernel.org, alexander.shishkin@linux.intel.com, a.p.zijlstra@chello.nl Subject: Re: [PATCH 00/12] perf top: Rework processing code From: David Miller In-Reply-To: <20181119122016.22423-1-jolsa@kernel.org> References: <20181119122016.22423-1-jolsa@kernel.org> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 19 Nov 2018 17:26:09 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiri Olsa Date: Mon, 19 Nov 2018 13:20:04 +0100 > David reported issues with perf top loosing side band events > so we moved mmap reading and hists processing into separated > threads. > > This patchset also adds dropping sample logic when the processing > falls behind the reader thread. This way we get incomplete but > current data in perf top. > > Also available in: > git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git > perf/fixes For series: Acked-by: David S. Miller With this plus my mmap by-hand parsing and mmap parsing timeout removal changes, we've made serious progress. Thanks!