From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from eu-smtp-delivery-178.mimecast.com (eu-smtp-delivery-178.mimecast.com [146.101.78.178]) by dpdk.org (Postfix) with ESMTP id 9CDF416E for ; Thu, 29 Mar 2018 12:05:57 +0200 (CEST) Received: from ex-uknb-01.ad.s-a-m.com (83-244-203-18.cust-83.exponential-e.net [83.244.203.18]) (Using TLS) by eu-smtp-1.mimecast.com with ESMTP id uk-mta-61-XtT3IFjBOKa9KvV6FzRr3w-1; Thu, 29 Mar 2018 11:05:55 +0100 Received: from EX-UKHA-01.ad.s-a-m.com ([fe80::bd21:e36b:5bf6:8ca8]) by EX-UKHA-01.ad.s-a-m.com ([fe80::bd21:e36b:5bf6:8ca8%11]) with mapi id 14.03.0361.001; Thu, 29 Mar 2018 11:05:52 +0100 From: Richard Nutman To: "users@dpdk.org" Thread-Topic: [dpdk-users] Temperature of CPU when running DPDK App Thread-Index: AQHTx0S4YAagChUJk02b1R26pT0i8qPm+xpg Date: Thu, 29 Mar 2018 10:05:52 +0000 Message-ID: <733AB18813E3864094592CC5191B172A235BC96B@EX-UKHA-01.ad.s-a-m.com> References: <126402432.2812576.1522233938671.JavaMail.zimbra@viettel.com.vn> <287310953.2822437.1522234072488.JavaMail.zimbra@viettel.com.vn> In-Reply-To: <287310953.2822437.1522234072488.JavaMail.zimbra@viettel.com.vn> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.19.77.57] x-esetresult: clean, is OK x-esetid: 37303A29F33CD062657C6B MIME-Version: 1.0 X-MC-Unique: XtT3IFjBOKa9KvV6FzRr3w-1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-users] Temperature of CPU when running DPDK App X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Mar 2018 10:05:57 -0000 SGksIA0KDQo3MmMgbG9va3MgdG8gYmUgd2VsbCB3aXRoaW4gcmFuZ2UgZnJvbSB0aGUgc2Vuc29y 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(marshal4.ul.ie [193.1.100.31]) by dpdk.org (Postfix) with ESMTP id BFADD2B82 for ; Thu, 29 Mar 2018 15:58:03 +0200 (CEST) Received: from exCAS1.ul.campus (Not Verified[193.1.97.101]) by MARSHAL4.ul.ie with Trustwave SEG (v7, 5, 8, 10121) id ; Thu, 29 Mar 2018 14:58:02 +0100 Received: from EXMBX1.ul.campus ([fe80::a4c7:3a87:d355:1b0d]) by exCAS1.ul.campus ([2002:c101:6165::c101:6165]) with mapi id 14.03.0361.001; Thu, 29 Mar 2018 14:58:02 +0100 From: Hristo.Trifonov To: "users@dpdk.org" Thread-Topic: Re: [dpdk-users] Temperature of CPU when running DPDK App Thread-Index: AdPHYX58uuRJv/zEQRmCBoxA4Kdiig== Date: Thu, 29 Mar 2018 13:58:01 +0000 Message-ID: Accept-Language: en-IE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.100.113.195] MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-users] Temperature of CPU when running DPDK App X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Mar 2018 13:58:04 -0000 Hi, Your temperatures seem quite normal for 16 CPUs that are running a DPDK app= . I'm not sure what is your app actually doing but if you want to try and bri= ng those values down you can look at rte_delay_us_block() which effectively= calls _mm_pause() and sends a PAUSE instruction to the CPU core and pauses= the busy-wait loop execution for predefined micro or mili seconds. I am not sure if this is relevant to your use case but I did some research = on this recently, which you can find here https://ulir.ul.ie/handle/10344/6= 246. Chapter 7.1.1 explains the most. Regards, Hristo