From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f171.google.com (mail-pd0-f171.google.com [209.85.192.171]) by kanga.kvack.org (Postfix) with ESMTP id 9E0E46B006C for ; Tue, 2 Dec 2014 00:06:13 -0500 (EST) Received: by mail-pd0-f171.google.com with SMTP id y13so12433817pdi.30 for ; Mon, 01 Dec 2014 21:06:13 -0800 (PST) Received: from ponies.io (ponies.io. [2600:3c01::f03c:91ff:fe6e:5e45]) by mx.google.com with ESMTP id yt4si31945425pbb.62.2014.12.01.21.06.10 for ; Mon, 01 Dec 2014 21:06:10 -0800 (PST) Received: from cucumber.localdomain (nat-gw2.syd4.anchor.net.au [110.173.144.2]) by ponies.io (Postfix) with ESMTPSA id 19281A0EF for ; Tue, 2 Dec 2014 05:06:10 +0000 (UTC) Date: Tue, 2 Dec 2014 16:06:08 +1100 From: Christian Marie Subject: Re: isolate_freepages_block and excessive CPU usage by OSD process Message-ID: <20141202050608.GA11051@cucumber.bridge.anchor.net.au> References: <20141119212013.GA18318@cucumber.anchor.net.au> <546D2366.1050506@suse.cz> <20141121023554.GA24175@cucumber.bridge.anchor.net.au> <20141123093348.GA16954@cucumber.anchor.net.au> <20141128080331.GD11802@js1304-P5Q-DELUXE> <54783FB7.4030502@suse.cz> <20141201083118.GB2499@js1304-P5Q-DELUXE> <20141202014724.GA22239@cucumber.bridge.anchor.net.au> <20141202045324.GC6268@js1304-P5Q-DELUXE> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="X1bOJ3K7DJ5YkBrT" Content-Disposition: inline In-Reply-To: <20141202045324.GC6268@js1304-P5Q-DELUXE> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org --X1bOJ3K7DJ5YkBrT Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Dec 02, 2014 at 01:53:24PM +0900, Joonsoo Kim wrote: > This is just my assumption, so if possible, please check it with > compaction tracepoint. If it is, we can make a solution for this > problem. Which event/function would you like me to trace specifically? > Anyway, could you test one more time without second patch? > IMO, first patch is reasonable to backport, because it fixes a real bug. > But, I'm not sure if second patch is needed to backport or not. > One more testing will help us to understand the effect of patch. I will attempt to do this tomorrow and should have results in around 24 hours. --X1bOJ3K7DJ5YkBrT Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJUfUi+AAoJEMHZnoZn5OShhTAP/2OmwsMoAqzd1zPh3ffjdBIm TmDOfHbWZ/lDgQTtteslf3VZFZnhVABb2b01uOyC30FmbzqcZz/mj2zgdKep++LM QFrrlPN+MxSDsfA5X1dCcj7oN7EUgAAas6xeHqcbFGs1PKJOQkxo/BEYhbUieYfi VJ6hdfs9jjWZySe9RaiUmXX5QdW/IBbZES+bgAUxBc4YWKq/WNT3BXSlzV7tga+d rG6IU2aoCaztjcIGm0Ny89Ig23S32UKbpcSFQF9Nrg3IX3CbEBQyj37HQN4BW1Qa 5NGmKkAmZ2WIokmB/NC21Qpz/0DXYNGWUMMA/rcprY6UNB1nRKXiLtQ4amD1HqSV WpzoBIUXNSh7RmVgMTznqvOI94WGak9lfgXafz9fX2dPXbgQ9vd8jdSj67FCdioC cKPJkbGqf+IAjAQsUDPSWCs0chj+ktvfTJhLPGAZp8tppjkPnJeWBGw+t+e04qWr lYLMKUS9Mzmj1shJPpZLWecX0QeSOFRVpT+8Rhy4HlXLx/hnsKMNvRr9ZAx/3XpH VncScAXKj4Le+d0tXo1vGC9QrcxNApWghMj1UVE5SupUoNcuNnl/c9UiNXJe4YK7 kXQ2EdGBOb4U7twHaxjSk8pwjQKblHDnAJOd5Qa3QWXzscCNRccEK/ws0UchoUar 7QANSb7saRAEYNNGylSF =YupH -----END PGP SIGNATURE----- --X1bOJ3K7DJ5YkBrT-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org