From owner-freebsd-arm@freebsd.org Mon Aug 31 22:42:20 2015 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D26049C722A for ; Mon, 31 Aug 2015 22:42:20 +0000 (UTC) (envelope-from freebsd.asc@strcmp.org) Received: from olinguito.schwarzes.net (olinguito.schwarzes.net [IPv6:2a01:4f8:7d:1b5::1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 63B571D80 for ; Mon, 31 Aug 2015 22:42:19 +0000 (UTC) (envelope-from freebsd.asc@strcmp.org) Received: from [62.109.78.35] (mosquito.schwarzes.net [62.109.78.35]) (authenticated bits=0) by olinguito.schwarzes.net (8.15.2/8.15.2) with ESMTPA id t7VMgGbF074906; Tue, 1 Sep 2015 00:42:16 +0200 (CEST) (envelope-from freebsd.asc@strcmp.org) From: Andreas Schwarz To: Svatopluk Kraus CC: Hans Petter Selasky , "freebsd-arm@freebsd.org" Mail-Reply-To: Andreas Schwarz Mail-Followup-To: freebsd-arm@FreeBSD.org Date: Tue, 01 Sep 2015 00:42:15 +0200 (CEST) Message-ID: <46d8b55830c.48a059ec@mail.schwarzes.net> In-Reply-To: References: <55A7D8CE.4020809@selasky.org> <55B23276.8090703@selasky.org> <55B73113.2020308@selasky.org> <55B8AB76.7030603@selasky.org> <55B8B297.1010008@selasky.org> <20150729154516.GH78154@funkthat.com> <55B8F5EC.2050908@selasky.org> <46ad096c958.1a82a175@mail.schwarzes.net> <55B9C3E2.5040501@selasky.org> <46ae815c7c3.447237c8@mail.schwarzes.net> <46aece00b53.3c1cdc1f@mail.schwarzes.net> <55BB2A5F.9000502@selasky.org> <46baa16c4ce.6efd29ef@mail.schwarzes.net> <55CF31A1.5080205@selasky.org> <46ce372c895.20050775@mail.schwarzes.net> <46d0a4441bb.41f6f91d@mail.schwarzes.net> <55DD5C0A.2050401@selasky.org> User-Agent: YAM/2.9p1 (MorphOS; PPC; rv:20140418r7798) Subject: Re: DWC OTG TX path optimisation for 11-current MIME-Version: 1.0 Content-Type: text/plain X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (olinguito.schwarzes.net [78.47.41.143]); Tue, 01 Sep 2015 00:42:16 +0200 (CEST) X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Aug 2015 22:42:20 -0000 On 28.08.15, Svatopluk Kraus wrote: > My subjective observation is that the slow system response can be > caused by slow wake up from idle state. I have tried to change > scheduler from ULE to BSD one with no MII warning and everything is > okay result. And buildword was about one hour faster. Note that the > trigger is very sensitive, so it can be just because system timing and > many other things are different with different scheduler. I've tried the 4BSD scheduler too, amazing, faster and surely prevents to run into the known problem. I've just started a buildworld loop, will try to reach 10 rounds. -asc