Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752728AbbKNAvu (ORCPT ); Fri, 13 Nov 2015 19:51:50 -0500 Received: from mail-pa0-f47.google.com ([209.85.220.47]:33783 "EHLO mail-pa0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751085AbbKNAvt (ORCPT ); Fri, 13 Nov 2015 19:51:49 -0500 Date: Fri, 13 Nov 2015 16:51:40 -0800 (PST) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: "Huang, Ying" cc: Hugh Dickins , Andrew Morton , Josef Bacik , Yu Zhao , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] tmpfs: avoid a little creat and stat slowdown In-Reply-To: <8737wafge7.fsf@yhuang-dev.intel.com> Message-ID: References: <87bnbagqa0.fsf@yhuang-dev.intel.com> <8737wafge7.fsf@yhuang-dev.intel.com> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 21 On Fri, 13 Nov 2015, Huang, Ying wrote: > > c435a390574d is the direct parent of afa2db2fb6f1 in its original git. > 43819159da2b is your patch applied on top of v4.3-rc7. The comparison > of 43819159da2b with v4.3-rc7 is as follow: ... > So you patch improved 11.9% from its base v4.3-rc7. I think other > difference are caused by other changes. Sorry for confusing. Thanks for getting back on this: that's rather what I was hoping to hear. Of course, no user will care which commit is responsible for a slowdown, and we may need to look further; but I couldn't make sense of it before, so this was a relief. Hugh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/