From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============6281487023617943974==" MIME-Version: 1.0 From: David Vrabel To: lkp@lists.01.org Subject: Re: [xen] 054954eb051f: -49.7% kernel-size.bss Date: Thu, 08 Jan 2015 14:43:13 +0000 Message-ID: <54AE9781.5050501@citrix.com> In-Reply-To: <1420685923.6201.91.camel@linux.intel.com> List-Id: --===============6281487023617943974== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On 08/01/15 02:58, Huang Ying wrote: > FYI, we noticed the below changes on > = > commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear v= irtual mapped sparse p2m list") > = > testbox/testcase/testparams: vm-kbuild-yocto-ia32/boot/1 > = > 0aad5689837c882d 054954eb051f35e74b75a566a9 = > ---------------- -------------------------- = > %stddev %change %stddev > \ | \ = > 4161536 =C2=B1 0% -49.7% 2093056 =C2=B1 0% kernel-size.bss This is a good thing, right? > kernel-size.bss > = > 4.5e+06 *+-*--*--*-*--*--*--*--*--*--*--*-*--*--*--*-------------------= ---+ > | *..*.. = | > | *..*.*..*..= *..* > 4e+06 ++ = | > | = | > | = | > 3.5e+06 ++ = | > | = | > 3e+06 ++ = | > | = | > | = | > 2.5e+06 ++ = | > | = | > O O O O O O O O O O O O O O O O O O O O O = | > 2e+06 ++-------------------------------------------------------------= ---+ I have no idea what this graph is supposed to be showing. David --===============6281487023617943974==-- From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756285AbbAHOnQ (ORCPT ); Thu, 8 Jan 2015 09:43:16 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:43452 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756030AbbAHOnP (ORCPT ); Thu, 8 Jan 2015 09:43:15 -0500 X-IronPort-AV: E=Sophos;i="5.07,723,1413244800"; d="scan'208";a="213349441" Message-ID: <54AE9781.5050501@citrix.com> Date: Thu, 8 Jan 2015 14:43:13 +0000 From: David Vrabel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Huang Ying , Juergen Gross CC: LKML , LKP ML Subject: Re: [LKP] [xen] 054954eb051f: -49.7% kernel-size.bss References: <1420685923.6201.91.camel@linux.intel.com> In-Reply-To: <1420685923.6201.91.camel@linux.intel.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 8bit X-DLP: MIA2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/01/15 02:58, Huang Ying wrote: > FYI, we noticed the below changes on > > commit 054954eb051f35e74b75a566a96fe756015352c8 ("xen: switch to linear virtual mapped sparse p2m list") > > testbox/testcase/testparams: vm-kbuild-yocto-ia32/boot/1 > > 0aad5689837c882d 054954eb051f35e74b75a566a9 > ---------------- -------------------------- > %stddev %change %stddev > \ | \ > 4161536 ± 0% -49.7% 2093056 ± 0% kernel-size.bss This is a good thing, right? > kernel-size.bss > > 4.5e+06 *+-*--*--*-*--*--*--*--*--*--*--*-*--*--*--*----------------------+ > | *..*.. | > | *..*.*..*..*..* > 4e+06 ++ | > | | > | | > 3.5e+06 ++ | > | | > 3e+06 ++ | > | | > | | > 2.5e+06 ++ | > | | > O O O O O O O O O O O O O O O O O O O O O | > 2e+06 ++----------------------------------------------------------------+ I have no idea what this graph is supposed to be showing. David