From owner-freebsd-mips@freebsd.org Mon Nov 9 17:42:50 2015 Return-Path: Delivered-To: freebsd-mips@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 0426AA2A71F for ; Mon, 9 Nov 2015 17:42:50 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [78.47.246.247]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 69BC31956; Mon, 9 Nov 2015 17:42:48 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221]) by hz.grosbein.net (8.14.9/8.14.9) with ESMTP id tA9Hggm4012563 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Mon, 9 Nov 2015 18:42:43 +0100 (CET) (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: ian@freebsd.org Received: from eg.sd.rdtc.ru (eugen@localhost [127.0.0.1]) by eg.sd.rdtc.ru (8.15.2/8.15.2) with ESMTP id tA9Hgcm7049841; Tue, 10 Nov 2015 00:42:38 +0700 (KRAT) (envelope-from eugen@grosbein.net) Subject: Re: CPU underload To: Ian Lepore , Adrian Chadd References: <56348063.3090508@grosbein.net> <563500FC.8020201@grosbein.net> <5635148B.2070307@grosbein.net> <56351AA6.80903@grosbein.net> <563523CA.3040207@grosbein.net> <56367686.4090801@grosbein.net> <563707A0.3040700@grosbein.net> <56370E1D.3040801@grosbein.net> <563F5630.2000407@grosbein.net> <563F938B.3070707@grosbein.net> <1447090771.91534.477.camel@freebsd.org> Cc: "freebsd-mips@freebsd.org" From: Eugene Grosbein Message-ID: <5640DB0E.8010005@grosbein.net> Date: Tue, 10 Nov 2015 00:42:38 +0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: <1447090771.91534.477.camel@freebsd.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=2.5 required=5.0 tests=BAYES_00, DATE_IN_FUTURE_48_96, LOCAL_FROM autolearn=no version=3.3.2 X-Spam-Report: * 2.2 DATE_IN_FUTURE_48_96 Date: is 48 to 96 hours after Received: date * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 2.6 LOCAL_FROM From my domains X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on hz.grosbein.net X-Spam-Level: ** X-BeenThere: freebsd-mips@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Porting FreeBSD to MIPS List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 Nov 2015 17:42:50 -0000 On 10.11.2015 00:39, Ian Lepore wrote: > On Sun, 2015-11-08 at 11:23 -0800, Adrian Chadd wrote: >> ok, what's the l1 cache size reported at boot up? >> >> I think I may just bump them all to 64. > > 64 is not some kind of magic panacea. The value needs to be set to the > cache line size for the runtime platform. If the right value is 32, > then setting it to 64 will just waste memory. Is it for instruction cache or for data cache?