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Wed, 9 Aug 2023 20:21:06 -0400 (EDT) Date: Thu, 10 Aug 2023 01:21:04 +0100 From: void To: freebsd-stable@freebsd.org Subject: Re: problems trying to use powerd with Xeon E5-2690 on HP ProLiant DL380p Message-ID: Mail-Followup-To: freebsd-stable@freebsd.org References: <504ADC8D-6CE9-4E8F-BB6F-414C603A1F8F@longcount.org> List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <504ADC8D-6CE9-4E8F-BB6F-414C603A1F8F@longcount.org> X-Spamd-Result: default: False [-3.40 / 15.00]; DWL_DNSWL_LOW(-1.00)[messagingengine.com:dkim]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.995]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; NEURAL_SPAM_MEDIUM(0.30)[0.295]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm3,messagingengine.com:s=fm3]; R_SPF_ALLOW(-0.20)[+ip4:66.111.4.26]; MIME_GOOD(-0.10)[text/plain]; RWL_MAILSPIKE_GOOD(-0.10)[66.111.4.26:from]; RCVD_IN_DNSWL_LOW(-0.10)[66.111.4.26:from]; PREVIOUSLY_DELIVERED(0.00)[freebsd-stable@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; ARC_NA(0.00)[]; RCVD_TLS_LAST(0.00)[]; ASN(0.00)[asn:19151, ipnet:66.111.4.0/24, country:US]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_NONE(0.00)[]; FREEMAIL_FROM(0.00)[f-m.fm]; MLMMJ_DEST(0.00)[freebsd-stable@freebsd.org]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MIME_TRACE(0.00)[0:+]; FROM_EQ_ENVFROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; RCVD_VIA_SMTP_AUTH(0.00)[] X-Spamd-Bar: --- X-Rspamd-Queue-Id: 4RLndv4zLxz4X8r Hi Mark, On Wed, Aug 09, 2023 at 07:52:59PM -0400, Mark Saad wrote: >Hi void > It will work , you will need to re-enable c-states and p-states >etc in the bios . Dmesg is only showing the cpu has the options but >the bios controls the ability to use it . Iirc hp has some opaque >options to enable high performance mode in the bios . This usually >kills most of the power management stuff . Google for low latency >tunings for your model and chances are you will find a pdf with >options for making the host eat more power and improve latency as >well as options that save power at the expense of increasing latency. Many thanks for this! --