From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753098AbdBHDS7 (ORCPT ); Tue, 7 Feb 2017 22:18:59 -0500 Received: from mout.gmx.net ([212.227.17.21]:59835 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751820AbdBHDS6 (ORCPT ); Tue, 7 Feb 2017 22:18:58 -0500 Message-ID: <1486523543.4462.5.camel@gmx.de> Subject: Re: v4.9, 4.4-final: 28 bioset threads on small notebook, 36 threads on cellphone From: Mike Galbraith To: Pavel Machek , Kent Overstreet Cc: Mike Snitzer , kernel list , axboe@fb.com, hch@lst.de, neilb@suse.de, martin.petersen@oracle.com, dpark@posteo.net, ming.l@ssi.samsung.com, dm-devel@redhat.com, ming.lei@canonical.com, agk@redhat.com, jkosina@suse.cz, geoff@infradead.org, jim@jtan.com, pjk1939@linux.vnet.ibm.com, minchan@kernel.org, ngupta@vflare.org, oleg.drokin@intel.com, andreas.dilger@intel.com Date: Wed, 08 Feb 2017 04:12:23 +0100 In-Reply-To: <20170207203911.GA16980@amd> References: <20151211104937.GA23165@amd> <20151211140841.GA22873@redhat.com> <20160220174035.GA16459@amd> <20160220184258.GA3753@amd> <20160220195136.GA27149@redhat.com> <20160220200432.GB22120@amd> <20170206125309.GA29395@amd> <20170207014724.74tb37jj7u66lww3@moria.home.lan> <20170207024906.4oswyuvxfnqkvbhr@moria.home.lan> <20170207203911.GA16980@amd> Content-Type: text/plain; charset="us-ascii" X-Mailer: Evolution 3.16.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:FS0LpdG9vggNigAS6vvEM/uot9YXgmUtlZvyoA3jeTAmUvvyjdo 1Hpr+H7bDh8T2D9MmrmQ+4rQFSy7Ng+5UkZ7AcnJ/YbuMQekaRnpImkjBMCrP4vlPmFSBYK 61jZSoGS/NmsvQo2wpJW0GDgc/HTfNUHqyy48WPXOxEIhjlR8ebMH/f3oczkeR/vwGd6Fsk QI95JdluI8m9T4W4M9c8g== X-UI-Out-Filterresults: notjunk:1;V01:K0:iaMuUu7RoG4=:A+Lp8qzgHifVo+6GeRcF0s JL6V/89uxO1rh+UctJbn//SnQ4uBWfY/cbMXMC6RfUcc+zgqSjaiOdM5SK8J5ZxPJOlWhrO9D 292v+Qh4Yx9EKPmSXsgYYFP+5LaSgAk9V0unxP3lQDAnAfSw5fFQBzpIYws6aS0lHdiry7n+S AF3L5vyhEaR/yrjXDZj7IffPXcPPZayoRXfY4npxBOrkgJuDB6J0hgSjmucsbX+p0v08fgGjm 1p2xiEwMT9M4btuGh65vx0TfHyUNMTqv227Nn2RcPmNeJ3LRPn26xasY1HoNGHxjdkyH1ur+Z SsUOqk7Mfcpit0zRZZ+dlBhmIX4UTTFzjzDgYCdFwN8Wkx0We6gVpTU51v1UrZ0Z0ALLM+7Xg d6SCLyggTmxExkD3hdLzYbM0C+NaJ7lOb2A1AdQSGvLanC+N3sWpNHe3pgiYfNO09Zqbm7JEm 6B0HPweZznvtpnztvElImw4xXl8TqthZcw1SgQeB3Y+LYoYJwi7LOPkOmj/e8B+SYmdZsRMx5 TyrBiT2huAQjAGXjUjizyKfcVuuqVZgLg//CgBW4dCQZcR7CDU0ZKFXZBcN/AnO09qQu7qinh b/aWeqnpzLgUoRn2DRJB9cJZ2tSnCtLc/oPzB8c6YuQTZGIGfnQzJ8F3sMsEnDy2BR9SevOv1 0lczW7ZsB/fjc5f+hx1U5LzSIYhGliYRmBrmHdqu0bdZ2tIb1pg49Y3fGmPpswsl/k8YzETq0 I3raJweEHYAK5I+LkE20TjnkeyqBsxpBc0HWmPFhHE2kZ/qr1/dHoI2/B9BLuZ4dO0KfIn3+V 6iBVDv8OPPbKYnDGEUHNuUVbqTVNyY9ZqXduU4tABbVpXARqnzGZZoq+WlhzhySEd1hWaKoe8 kdM5VPytYCD1UixsbROikPla2s9sQnCg88RRu5oYFIXaMrzK5OG8PKMu10PBVZ1K+eS9k7uaf LN7A1YKYk2X2F3/NewELnon3bkyaNPTdSYp2tX/Zdcyn1g2xUwRu3MlYtbVA4DDWFbRel2Irr SSrqgTo6x/6kZ/ReqM3JYEDCO91ksWClsMhqxEHKZlD7/xbptvXhQYuN2ttaNocy8Q== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2017-02-07 at 21:39 +0100, Pavel Machek wrote: > On Mon 2017-02-06 17:49:06, Kent Overstreet wrote: > > On Mon, Feb 06, 2017 at 04:47:24PM -0900, Kent Overstreet wrote: > > > On Mon, Feb 06, 2017 at 01:53:09PM +0100, Pavel Machek wrote: > > > > Still there on v4.9, 36 threads on nokia n900 cellphone. > > > > > > > > So.. what needs to be done there? > > > > > But, I just got an idea for how to handle this that might be halfway sane, maybe > > > I'll try and come up with a patch... > > > > Ok, here's such a patch, only lightly tested: > > I guess it would be nice for me to test it... but what it is against? > I tried after v4.10-rc5 and linux-next, but got rejects in both cases. It wedged into master easily enough (box still seems to work.. but I'll be rebooting in a very few seconds just in case:), but threads on my desktop box only dropped from 73 to 71. Poo. -Mike