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 002E1A034C for ; Tue, 1 Mar 2022 17:37:51 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9D8A041163; Tue, 1 Mar 2022 17:37:51 +0100 (CET) Received: from mail-pj1-f50.google.com (mail-pj1-f50.google.com [209.85.216.50]) by mails.dpdk.org (Postfix) with ESMTP id 0F83340DF6 for ; Tue, 1 Mar 2022 17:37:49 +0100 (CET) Received: by mail-pj1-f50.google.com with SMTP id cx5so1985180pjb.1 for ; Tue, 01 Mar 2022 08:37:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=UWZydXYrcPaRXLOxFkAGuBN69X1ZSpxXUgT+7nMpg1E=; b=fAjg77+D4XOqs4UOsxiHgT8zRUjDDHOTtlDP1mQNHQt6gPd1Qs1eEGSCal1IU6qDZ5 ym6lfPvQr1U86mKxlNA/WD7E4nl3N7D7UkXL9Or3FwSlXSB26L3kJjGuHkuL+EfSSnG1 +QSmc5jeADVdMydcc11ln3iSGQ28v0J9rMo6PGw60P8vGc0pb3TnKU2NI/kt3x46S0od PMWqL33eOLFwM1HSbZRqt8XzubiFHODFYqBL23eHpmEs/l0AHWd2m/Xioi94qo0hbjaI Xk9U5lwB+zuP5oyTxC+zV9qXKSPnoyQg3FxeF03KkQuYYVsLTKMUzZrUaPqYRbuz+5jW 2sKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=UWZydXYrcPaRXLOxFkAGuBN69X1ZSpxXUgT+7nMpg1E=; b=QBtYg3/yqM3gICC5SlH0tYukkrbU4gPvFuVG4NTFBAHCAsAWEJNiAD8cchZ87X+AYk AioC5EvyR0UIpyxjyQAdkptKeZ461tPwrQaBNtNglSsSnxUEkqkYgMtPG9MZQbVKxtLs LGsnGyGLHRqOZKiq6kOBhQeiFyk/LBfDiONkhls5ylFaeGhAd4yCEYR6PhSHeYfpXXus gq8T/jUFZi7XTklmsoshNBdEPxLSuUpsj9t5Ob2D7Ax9uPNl1tgcekObsNJD50oUcuUk 1CyTUgFEkvPY/NWI+jbrlOSNJGH1maCbKIIGPwkdkXL6BiaYBlbDuSWur8Z6O+WYKfq6 v5IA== X-Gm-Message-State: AOAM530aQHTvhtHFk2EIfUumrns4Y5UEJOD3sy/5krvSjZUXtD39c/+t 8AunYAx6tD7U1KxxrEuPoY2bQg== X-Google-Smtp-Source: ABdhPJwnyNRiTkq3tDSj8m8rNVcZ9y4a9g+zAFq9NhT+PiyVhMnhdzaLvo81o/0xfHJrwiTEi3sunQ== X-Received: by 2002:a17:902:d0d2:b0:14f:d360:c103 with SMTP id n18-20020a170902d0d200b0014fd360c103mr25961871pln.7.1646152669082; Tue, 01 Mar 2022 08:37:49 -0800 (PST) Received: from hermes.local (204-195-112-199.wavecable.com. [204.195.112.199]) by smtp.gmail.com with ESMTPSA id t5-20020a654b85000000b00373cbfbf965sm13677478pgq.46.2022.03.01.08.37.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Mar 2022 08:37:48 -0800 (PST) Date: Tue, 1 Mar 2022 08:37:46 -0800 From: Stephen Hemminger To: "Kinsella, Ray" Cc: Antonio Di Bacco , "users@dpdk.org" Subject: Re: DPDK on isolated cores but I still see interrupts Message-ID: <20220301083746.39d6ec6b@hermes.local> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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 On Tue, 1 Mar 2022 15:16:32 +0000 "Kinsella, Ray" wrote: > Can you supply =E2=80=9Ccat /proc/cmdline=E2=80=9D please? >=20 > Ray K >=20 > From: Antonio Di Bacco > Sent: Tuesday 1 March 2022 14:52 > To: users@dpdk.org > Subject: DPDK on isolated cores but I still see interrupts >=20 > I am trying to run a DPDK application on x86_64 Machine (Ubuntu 20.04) on= isolated cores. > I expected not to have interrupts on isolated cores but I still have a lo= t of CAL (Function call interrupts) interrupts and LOC interrupts (Local ti= mer interrupts). Is there any setting in DPDK to stop those too? >=20 > Regards. Some other notes: - don't use CPU 0. The kernel needs/wants to run things there - You may need to change softirq and workqueue settings (see /sys/devices= /virtual/workqueue)