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=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 1934CC433E2 for ; Fri, 19 Mar 2021 19:32:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B5DEB6197F for ; Fri, 19 Mar 2021 19:32:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230435AbhCSTcL (ORCPT ); Fri, 19 Mar 2021 15:32:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230186AbhCSTb7 (ORCPT ); Fri, 19 Mar 2021 15:31:59 -0400 Received: from mail-pj1-x102e.google.com (mail-pj1-x102e.google.com [IPv6:2607:f8b0:4864:20::102e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A1CA3C06175F for ; Fri, 19 Mar 2021 12:31:59 -0700 (PDT) Received: by mail-pj1-x102e.google.com with SMTP id gb6so5171333pjb.0 for ; Fri, 19 Mar 2021 12:31:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=5opfv8LWCrrzAXi4ysTFIsG1LsWN3lMKkxUm2s4tTvA=; b=L5xo1THeuzMSz7uKmRd1e6xda48ErkHTSJn7EPzk9qZuCrTaI+eNvt3sC9/+0SuBK2 smYUw8DzKPbglOs7jjXNnKp/xLDcmnFJJLRd8tupyurhoZXcEBn1PGTm91VAWGx3vMBV YvFUkJpm5+EGQovZOuFuvs1hUUOcjLtNNZoAw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=5opfv8LWCrrzAXi4ysTFIsG1LsWN3lMKkxUm2s4tTvA=; b=XDkG7C5qhJfTjpIWUYoXtoUHquHpermuU/jcodmq9kz+IW3UG8N4JZAviSDGixNkBx wCpYS+2w7RnJeS1f5BwRNcNnRZnsqySsF8NnjA+QRVx0csbDycaTKrhCZybd+Q1sxqyn s2hj7b4GL5iYGoCaYa2KCcgikf5hFVhU9QHPbDrn1qU8sx41u7qiLdxAk7GuIiakcZPU cu57QL9CtyOYLDesUMclF7Bn3b1GxPZRMcl4A+JJXGmmgEQTAI/llhycB7GznjMsMdAi veuNLrlLSefRnIbv9DH8ANfRfNwFPJ9Ot043vt5v0TlGTgHgEwRGjo0CWpEtM1lezkT3 pJgA== X-Gm-Message-State: AOAM531AjuECneGuDiMkg1phcJDF0ca15qBzognxBWrNSmKoB2CZZlO1 sLpiOLau/3oUlDEFRk73cfsJWw== X-Google-Smtp-Source: ABdhPJydPEniMBE/5b7MpGNaruOLdPZj/mkpt8tK156nLbZZ3AD5YjtJwdB94z0VAgxiY0Yvqk3QcQ== X-Received: by 2002:a17:902:7e4a:b029:e5:d1cf:27e4 with SMTP id a10-20020a1709027e4ab02900e5d1cf27e4mr15458775pln.69.1616182319138; Fri, 19 Mar 2021 12:31:59 -0700 (PDT) Received: from www.outflux.net (smtp.outflux.net. [198.145.64.163]) by smtp.gmail.com with ESMTPSA id c25sm6007304pfo.101.2021.03.19.12.31.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Mar 2021 12:31:58 -0700 (PDT) Date: Fri, 19 Mar 2021 12:31:57 -0700 From: Kees Cook To: kernel test robot Cc: 0day robot , LKML , lkp@lists.01.org, ying.huang@intel.com, feng.tang@intel.com, zhengjun.xing@intel.com, Andrew Morton , Greg Kroah-Hartman , Michal Hocko , Alexey Dobriyan , Lee Duncan , Chris Leech , Adam Nichols , linux-fsdevel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [seq_file] 5fd6060e50: stress-ng.eventfd.ops_per_sec -49.1% regression Message-ID: <202103191230.5054A14247@keescook> References: <20210315174851.622228-1-keescook@chromium.org> <20210319140742.GC30349@xsang-OptiPlex-9020> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210319140742.GC30349@xsang-OptiPlex-9020> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 19, 2021 at 10:07:42PM +0800, kernel test robot wrote: > FYI, we noticed a -49.1% regression of stress-ng.eventfd.ops_per_sec due to commit: Well, so it can be seen. ;) Though I feel slightly better that it's stress-ng instead of a "normal" workload. Thanks for the report! -- Kees Cook