From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 0E158A034F for ; Mon, 21 Feb 2022 21:28:22 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 915E64068C; Mon, 21 Feb 2022 21:28:21 +0100 (CET) Received: from mail-ua1-f47.google.com (mail-ua1-f47.google.com [209.85.222.47]) by mails.dpdk.org (Postfix) with ESMTP id ADC464013F for ; Mon, 21 Feb 2022 21:28:19 +0100 (CET) Received: by mail-ua1-f47.google.com with SMTP id g15so2907959ual.11 for ; Mon, 21 Feb 2022 12:28:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=xH9l53HfMLhcrpzn8LKucXjdhgBAWRRnxivMQzoBZIQ=; b=nXJkHfFouqhhSUVgZlTWp3F6+dHPyarFxGBiuUknxIttYS2zFOlDiq2BSixppWuGiD PJp3hxJIwZgCf47ODQb0/74nTVq4M+2OvR31p3Yo4aRS0tTxlLMVvtv9k/iKsug8PTcb fDra441yeHxXjWQfeI4Dy+o7xM3fkj1mg1TbZUj07V/iCKj0cuXAzJIK0PJgkESImVOQ bcpiLPCcOpGFdsmo2uP4RLsl0TR6SxB+omPzMUohCcTo9BfkIZiMHXq9tx+MjpYN8K9U rTUnFaIzPPyuD3BdDPillNBuZjumiZVUFAOhtyrBtDVj3CpGkKB3FuHM81zUw2mPrUBx 7VDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=xH9l53HfMLhcrpzn8LKucXjdhgBAWRRnxivMQzoBZIQ=; b=NTjGJEzt5SRdp61WEFrPg6d8EMqLwp8kgUEFtXpwXNlIfsMazI+SRkcwwW6Mjt/P+g mgyBZt4G7fRUt1+9hVwxunlEOTCK4wSxygR30Aw2EyLujnIh7LejYh5yiDZNCon8pQH2 CztXTioOTseV42fhoCTdjhV9YAinbsdQAXaz5FQXrdYr+Z+aYccrLMe7i5ia5iLR9oDo AF8okesOhF/Axmaf1NB/xkW4BeO4NsrTtoaBlxE9em+jsIh0PKwp3+l2gVMfISPVh2k2 Mj0JHry01Ykt6PXvDEHiPaITBIp51ZZccBWDH4rF5s6U2TuK0eVZsjiOOuOh3nQUxSc6 S2lg== X-Gm-Message-State: AOAM530FE39HWEJTwO5PW7/iCjVeaL5LewB12zm84nXvOO/k2VhwTOOw fiPBYjBIGPfh+x91l/zfdgF99nglPYZVdbifjBwHDVD3hr4= X-Google-Smtp-Source: ABdhPJxnryin79aLR2rq2Sj0WF99cs6zpaafdy2SCpIGHkzuiJmyIc7RrGYcIXEIwktE+5/A/Fn9Ek8yA/PN2t41wF4= X-Received: by 2002:a9f:37ef:0:b0:33c:b32a:8361 with SMTP id q102-20020a9f37ef000000b0033cb32a8361mr8386289uaq.34.1645475299066; Mon, 21 Feb 2022 12:28:19 -0800 (PST) MIME-Version: 1.0 References: <20220221090852.05f7819e@hermes.local> In-Reply-To: <20220221090852.05f7819e@hermes.local> From: Staffan Wiklund Date: Mon, 21 Feb 2022 21:28:08 +0100 Message-ID: Subject: Re: Are Intel CPUs better than AMD CPUs for DPDK applications? To: Stephen Hemminger Cc: users Content-Type: multipart/alternative; boundary="000000000000b005b205d88d1214" X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: users-bounces@dpdk.org --000000000000b005b205d88d1214 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Stephen, thanks for your answer. I realize the statement is very vague. I was thinking of if there was something common in the design of Intel and AMD CPUs respectively that has an impact on their use by DPDK applications. Do you know if there is such a common design difference between Intel and AMD CPUs or is it just a matter of using an Intel or AMD CPU with the requested performance? Regards Staffan Den m=C3=A5n 21 feb. 2022 kl 18:08 skrev Stephen Hemminger < stephen@networkplumber.org>: > On Mon, 21 Feb 2022 16:14:26 +0100 > Staffan Wiklund wrote: > > > Hello > > > > Do you know if there is a difference in support for DPDK that is > provided by > > Intel and AMD CPUs respectively? > > > > I talked to a person today claiming he has learned that Intel CPUs have > > been preferred over AMD CPUs for some DPDK applications. > > This person had no document showing reasons for this. > > > > Do you have any information on this? > > If there is a difference, will the difference be negligible do you thin= k > > from a > > technical perspective? > > > > Regards > > Staffan > > There is no one Intel CPU and one AMD CPU. There are lots of types so the > statement is very vague and misleading. > --000000000000b005b205d88d1214 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Stephen, thanks for your answer.
I re= alize the statement is very vague.
I was thinking of if there was= something common in the design of Intel and AMD CPUs respectively that has= an impact on their use by DPDK applications.
Do you know if ther= e is such a common design difference between Intel and AMD CPUs or is it ju= st a matter of using an Intel or AMD CPU with the requested performance?

Regards
Staffan

Den m=C3=A5n 21 feb.= 2022 kl 18:08 skrev Stephen Hemminger <stephen@networkplumber.org>:
On Mon, 21 Feb 2022 16:14:26 +0100
Staffan Wiklund <staffan491@gmail.com> wrote:

> Hello
>
> Do you know if there is a difference in support for DPDK that is provi= ded by
> Intel and AMD CPUs respectively?
>
> I talked to a person today claiming he has learned that Intel CPUs hav= e
> been preferred over AMD CPUs for some DPDK applications.
> This person had no document showing reasons for this.
>
> Do you have any information on this?
> If there is a difference, will the difference be negligible do you thi= nk
> from a
> technical perspective?
>
> Regards
> Staffan

There is no one Intel CPU and one AMD CPU. There are lots of types so the statement is very vague and misleading.
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