From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) by dpdk.org (Postfix) with ESMTP id BCF1F1B163 for ; Wed, 30 Jan 2019 07:09:33 +0100 (CET) Received: by mail-wr1-f49.google.com with SMTP id s12so24646506wrt.4 for ; Tue, 29 Jan 2019 22:09:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=QkUMlaltpqvfiE7MGyH62PmLTVr5S/7ebjyohZ9usO4=; b=PpLMIz9pYPWBec0DQaGwGixFcnHtA9ojNfBXhjhU/IiEdFwGFvbhJcG6lGxBiWDbPe i1WpTQ8ODYTbPmiXMUpujEi/ugf2vYZq9ObOpNmhBOljRUsbfMP1RDWnhslfw1zC/AKB nQS7l1QQEiooNk+ENyMWwJ+HFM2e2wN9+JDRa4rrYYCYjW5aSpdkdKGY18JB99Z2QhK5 jLhzq3dVgrqiTIeee/xbRMshW8ERSdw/ikQzNtn5Lk+7pU8No7b45V1v0Sm2ZobDoL2R QO1U5R0lJWpcXrDjtdLliN73SdbbtoA4hnvoa+ZN+jWonc9ARpUqyFJVe9q/BJBnxfYO b5Nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=QkUMlaltpqvfiE7MGyH62PmLTVr5S/7ebjyohZ9usO4=; b=pbBv7yQgOBgTwHGDFQzzjlGcEZGT0go1UEVDS48z4VBhToseBCZUkAbaxKIODwJMi/ +DDSJB5k2ustCf6x/m0nVTnNS0k5WUDUl0Fj4e5EYu0HS6LVauyWCK90f2YRI2zEDQEZ RakBMB+5JiKsvUas22XNIaEU9q8UbWUI/LZKx8tiq2UHLmb+7SLCLJQ+vhqv3ZXJD98m MM0+e3qFRhY/lZRYrvs8VYz7Erhti2hppj7g2W5KI8M8XS8lmw8cTE1zay7847alBGcT cx1FmKVh6Vd1AvSjC+9sKezMWXNl15xefJNisQ2v2x3+0Xq+Te45gdAtQ4dMSOOddR3b zLOg== X-Gm-Message-State: AJcUukdctMLYys6UpnBPKyiGzlLMH9h43gf9OVhDk+UDv3KWWJI7x0bd npiQ9Pjg16fn6c7bxqVk29M9gicDl9Dgvu0+3bBHHmD8 X-Google-Smtp-Source: ALg8bN7Wo3+KwEmsFTLxv0IwZgZN3sJAkzpm3dbfMMKnxZnPoyZH+6wutvUhwbm8Ek6W5QYMu44ilXP07rdThvSsWAw= X-Received: by 2002:adf:9323:: with SMTP id 32mr28044087wro.213.1548828573249; Tue, 29 Jan 2019 22:09:33 -0800 (PST) MIME-Version: 1.0 References: In-Reply-To: From: Rami Rosen Date: Wed, 30 Jan 2019 08:09:26 +0200 Message-ID: To: Shirley Avishour Cc: dev@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Subject: Re: [dpdk-dev] running dpdk application on the same machine with other none dpdk application X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jan 2019 06:09:33 -0000 Hi, Shirley >In order to do that we isolated the dpdk application cores and disabled hyperthreading for those cores. >we are using 5 cores for the dpdk application (which is in fact 10 since hyperthreading is disabled). Short clarification question: did you do it with EAL paramater ? Was it with -l CORELIST / --lcores COREMAP EAL parameter ? Did you try also the isolcpus Linux kernel parameter in order to isolate cores from the general Linux scheduler? Regards, Rami Rosen On Tue, Jan 29, 2019 at 6:32 PM Shirley Avishour wrote: > Hi, > We are trying to run a dpdk based application one the same machine with > other java based applications. > In order to do that we isolated the dpdk application cores and disabled > hyperthreading for those cores. > But sporadically we encounter misses over the interface. > We are running on a single socket cpu with 44 hyperthreaded cores. > we are using 5 cores for the dpdk application (which is in fact 10 since > hyperthreading is disabled). > My guess is that probably GC (garbage collection) running from the kernel > and perhaps over the isolated threads causing the misses. > Is there a way to solve this issue? Is there a way to isolate cores for > kernel processes/threads? > Thanks in advance, > Shirley. > -- regards, Rami Rosen