From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755464AbbLKROm (ORCPT ); Fri, 11 Dec 2015 12:14:42 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:46394 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752563AbbLKROl (ORCPT ); Fri, 11 Dec 2015 12:14:41 -0500 Date: Fri, 11 Dec 2015 18:14:38 +0100 From: Pavel Machek To: Mike Snitzer Cc: kernel list , axboe@fb.com, hch@lst.de Subject: Re: 4.4-rc: 28 bioset threads on small notebook Message-ID: <20151211171438.GA14905@amd> References: <20151211104937.GA23165@amd> <20151211140841.GA22873@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151211140841.GA22873@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi! > > Hi! > > > > I know it is normal to spawn 8 threads for every single function, > ... > > but 28 threads? > > > > root 974 0.0 0.0 0 0 ? S< Dec08 0:00 [bioset] > ... > > How many physical block devices do you have? > > DM is doing its part to not contribute to this: > dbba42d8a ("dm: eliminate unused "bioset" process for each bio-based DM device") > > (but yeah, all these extra 'bioset' threads aren't ideal) Thinkpad X60. One sda, and on SD card slot. I guess I did use the SD card from boot, and did few suspend/resume cycles... Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html