From owner-freebsd-questions@freebsd.org Mon Jul 12 19:55:01 2021 Return-Path: Delivered-To: freebsd-questions@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id DAA4C665CF2 for ; Mon, 12 Jul 2021 19:55:01 +0000 (UTC) (envelope-from tomdean@wavecable.com) Received: from smtp01.emerald.cmh.synacor.com (smtp.emerald.synacor.com [208.47.184.7]) (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 4GNvch41pRz3lC9 for ; Mon, 12 Jul 2021 19:55:00 +0000 (UTC) (envelope-from tomdean@wavecable.com) X-Authed-Username: dG9tZGVhbkB3YXZlY2FibGUuY29t Received: from [24.113.143.192] ([24.113.143.192:43676] helo=[192.168.1.143]) by mail.wavecable.com (envelope-from ) (ecelerity 3.6.25.56547 r(Core:3.6.25.0)) with ESMTPA id C6/17-17915-21E9CE06; Mon, 12 Jul 2021 15:54:59 -0400 Subject: Re: How do I disable CPU throttling To: freebsd-questions@freebsd.org References: From: "Thomas D. Dean" Message-ID: <0be4883a-6bf6-28bc-a14b-9cb1f6d729ae@wavecable.com> Date: Mon, 12 Jul 2021 12:54:57 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Vade-Verdict: clean X-Vade-Analysis-1: gggruggvucftvghtrhhoucdtuddrgedvtddrudefgddtfecutefuodetggdotefrodftvfcurfhrohhf X-Vade-Analysis-2: ihhlvgemucfujgfpteevqfftpdfgoffgtfetnfffpdfqfgfvnecuuegrihhlohhuthemuceftddunecu X-Vade-Analysis-3: necujfgurhepuffvfhfhkffffgggjggtgfesthekredttdefjeenucfhrhhomhepfdfvhhhomhgrshcu X-Vade-Analysis-4: ffdrucffvggrnhdfuceothhomhguvggrnhesfigrvhgvtggrsghlvgdrtghomheqnecuggftrfgrthht X-Vade-Analysis-5: vghrnhepheefffejheefudeileetteeuheekhedvvddtveeitdehgeduudevkeetvdeiueelnecukfhp X-Vade-Analysis-6: pedvgedruddufedrudegfedrudelvdenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhn X-Vade-Analysis-7: vghtpedvgedruddufedrudegfedrudelvddphhgvlhhopegludelvddrudeikedruddrudegfegnpdhm X-Vade-Analysis-8: rghilhhfrhhomhepthhomhguvggrnhesfigrvhgvtggrsghlvgdrtghomhdprhgtphhtthhopehfrhgv X-Vade-Analysis-9: vggsshguqdhquhgvshhtihhonhhssehfrhgvvggsshgurdhorhhgpdhhohhsthepshhmthhprdgvmhgv X-Vade-Analysis-10: rhgrlhgurdgtmhhhrdhshihnrggtohhrrdgtohhmpdhsphhfpehsohhfthhfrghilhdpughkihhmpedp X-Vade-Analysis-11: nhgspghrtghpthhtohepuddptehuthhhqdgfshgvrhepthhomhguvggrnh X-Vade-Client: EMERALD X-Rspamd-Queue-Id: 4GNvch41pRz3lC9 X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of tomdean@wavecable.com designates 208.47.184.7 as permitted sender) smtp.mailfrom=tomdean@wavecable.com X-Spamd-Result: default: False [-1.96 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; RWL_MAILSPIKE_GOOD(0.00)[208.47.184.7:from]; R_SPF_ALLOW(-0.20)[+ip4:208.47.184.0/24]; TO_DN_NONE(0.00)[]; HFILTER_HELO_IP_A(1.00)[smtp01.emerald.cmh.synacor.com]; HFILTER_HELO_NORES_A_OR_MX(0.30)[smtp01.emerald.cmh.synacor.com]; NEURAL_HAM_SHORT(-1.00)[-1.000]; RECEIVED_SPAMHAUS_PBL(0.00)[24.113.143.192:received]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[208.47.184.7:from]; ASN(0.00)[asn:36271, ipnet:208.47.184.0/23, country:US]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_NA(0.00)[]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; NEURAL_HAM_LONG(-0.96)[-0.963]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[wavecable.com]; RCPT_COUNT_ONE(0.00)[1]; SPAMHAUS_ZRD(0.00)[208.47.184.7:from:127.0.2.255]; RCVD_IN_DNSWL_NONE(0.00)[208.47.184.7:from]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-questions] X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 12 Jul 2021 19:55:01 -0000 On 7/12/21 3:48 AM, Thomas D. Dean wrote: > I want to run this system at a fixed freq.  It has beefed-up cooling. > > How do I do this? > > > uname -a > FreeBSD aorus 13.0-RELEASE FreeBSD 13.0-RELEASE #0: >    Sat Jul 10 23:47:01 PDT 2021 >    tomdean@aorus:/usr/obj/usr/src/amd64.amd64/sys/GENERIC  amd64 > > From dmidecode: >  MB: Gigabyte TRX40 AORUS XTREME >  CPU: AMD Ryzen Threadripper 3970X >    Max Speed: 4550 MHz >    Current Speed: 3700 MHz > > # sysctl dev.cpu | grep freq > dev.cpu.0.freq_levels: 3700/4070 2800/2800 2200/1980 > dev.cpu.0.freq: 2200 > > #sysctl dev.cpu.0.freq=3700 > dev.cpu.0.freq: 2200 -> 3700 > > === wait 30 sec > > # sysctl dev.cpu.0.freq > dev.cpu.0.freq: 2200 > > Why does dmidecode (via cpu-x) report a different value than >   sysctl dev.cpu.0.freq? where does dev.cpu.0.freq_levels get set at boot time? > sysctl -n dev.cpu.0.freq_levels 3700/4070 2800/2800 2200/1980 Looks like this is hardwired somewhere. I searched src/sys/* and found nothing, unless I missed it. grep'd freq_levels, 3700, 4070