From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-oa0-f53.google.com (mail-oa0-f53.google.com [209.85.219.53]) by kanga.kvack.org (Postfix) with ESMTP id C74B26B0069 for ; Thu, 26 Jun 2014 09:00:53 -0400 (EDT) Received: by mail-oa0-f53.google.com with SMTP id l6so3884528oag.12 for ; Thu, 26 Jun 2014 06:00:53 -0700 (PDT) Received: from mx10.nec.com (mx10.nec.com. [143.101.113.5]) by mx.google.com with ESMTPS id e10si9732305oeu.26.2014.06.26.06.00.53 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Thu, 26 Jun 2014 06:00:53 -0700 (PDT) Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CF913E.A7E9CDA7" Subject: RE: [mempolicy] 5507231dd04: -18.2% vm-scalability.migrate_mbps Date: Thu, 26 Jun 2014 07:59:41 -0500 Message-ID: References: From: "Horiguchi, Naoya" Sender: owner-linux-mm@kvack.org List-ID: To: Jet Chen , Naoya Horiguchi Cc: Andrew Morton , LKP , LKML , linux-mm@kvack.org ------_=_NextPart_001_01CF913E.A7E9CDA7 Content-Type: text/plain; charset="iso-2022-jp" Content-Transfer-Encoding: 7bit > Hi Naoya, > > FYI, we noticed the below changes on > > git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git am437x-starterkit > commit 5507231dd04d3d68796bafe83e6a20c985a0ef68 ("mempolicy: apply page table walker on queue_pages_range()") This patch is to be revised with one with less performance impact, where I stop calling ->pte_entry() callback heavily. Thanks, Naoya Horiguchi ------_=_NextPart_001_01CF913E.A7E9CDA7 Content-Type: text/html; charset="iso-2022-jp" Content-Transfer-Encoding: quoted-printable RE: [mempolicy] 5507231dd04: -18.2% = vm-scalability.migrate_mbps

> Hi = Naoya,           &= nbsp;           &n= bsp;           &nb= sp;           &nbs= p;            = ;            =             &= nbsp;
>
> FYI, we noticed the below changes on
>
> git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git = am437x-starterkit
> commit 5507231dd04d3d68796bafe83e6a20c985a0ef68 ("mempolicy: = apply page table walker on queue_pages_range()")

This patch is to be revised with one with less performance impact,
where I stop calling ->pte_entry() callback heavily.

Thanks,
Naoya Horiguchi

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