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 A5BE8A0C46; Wed, 9 Jun 2021 14:02:40 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2985A4069B; Wed, 9 Jun 2021 14:02:40 +0200 (CEST) Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) by mails.dpdk.org (Postfix) with ESMTP id D39DF4003C for ; Wed, 9 Jun 2021 14:02:38 +0200 (CEST) Received: by mail-pf1-f180.google.com with SMTP id p13so8660888pfw.0 for ; Wed, 09 Jun 2021 05:02:38 -0700 (PDT) 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; bh=iEAuBQgc4gA5IoCAxSrEoohwkVZBwZ/27NNSgH03iDE=; b=PcN7GviCUvQLEr5AttfkHFWR7mb81neJNYOTgJuk5G1eiHu5JoJKF7IUpwemMwqCgm ZamFpX+Wj30QLX+tkDXIUwHYWMCZVzGYmpwin089aIUQavviGbcfGoLSuSUgOCu/Xazz bB76liOLFzO3HFl6OTNraI1ZOH34oWLCEkqqQi1X3XjNN6ZrHxT6EsevC7pXO0wpOpEn AhwWgQW7JePqi6+6ZHQqTHQIxAewMiE9//4yyPD2E1aP9xWtKRPupq8ex+Om0wkWBGkO ysNg4hLK8HMH76CakYENois3TOqLac7bOCp4YPzJ9mWMWFzUFNZo5MoeYVTZEvEv4Cb5 qIQg== 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; bh=iEAuBQgc4gA5IoCAxSrEoohwkVZBwZ/27NNSgH03iDE=; b=TGa2nuAW7jJF++5UNHsVmmVmjpTCHqOAHJzgcrsDmvoz1J2saFjoe742Jr9uGD4aZl KF0sJWeJwNqrHoQ5TQgBHZE/WCv9lqCNsRdukLDwY5vGJ0bG9pipK64zn0E0pdwga9FW 4rF3uITTeRpzMT+UX6JAfUsbNK46n27JElGsjglYezba3qaPTgfwkY3NyHOuz2kereOV VmwBCP8d5NjtB7PXa1l6yI/tUk/6RZqjsyi/U9d/iFLbPZCRr/dMmq53oNeXhXnjlIEV AU78qGU2cMASiv3Q25mONzkgWrSPBOXE007F1Y4XKxbeJlqLKy+1CVOZ+SVcBfph49ec Y6oA== X-Gm-Message-State: AOAM5309c/1sisb07xjkXy5m6jE6h9hxPb3mGwY3x5ouufNL26/+R7NP ImvApPbkfc/Ps6COWcPxjlHYRnEV13by3+wvsoTaW+FGlbcAXA== X-Google-Smtp-Source: ABdhPJxEXod3SDEsbKU++OI3Bz5KhPglGfRpfzPptNo12pIDBlHrGXyh/qR+TcDhEw+B46I6psTRGp2Ep5+KsjWdXHM= X-Received: by 2002:a63:5c04:: with SMTP id q4mr3486948pgb.127.1623240157611; Wed, 09 Jun 2021 05:02:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Shanmugasundaram M Date: Wed, 9 Jun 2021 17:32:25 +0530 Message-ID: To: dev@dpdk.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: [dpdk-dev] Reg 6Wind fastpath DPDK 18.11.1 virtual memory allocation ( 54.5GB of anonymous mapping) X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Dear Team, We are using 6Wind fastpath(fp-rte) which is using DPDK version 18.11.1. We are seeing 65.5G(preallocated during startup) of virtual memory for fp-rte on a 32GB machine, 10G of that was huge pages (5000 mappings of 2M.) We found 4 strange anon (4K size) segments totaling 54.5G (16+16+16+6.5). Note: we changed / customized memory CONFIG_RTE_MAX_MEMSEG_PER_LIST=24576 and default value of CONFIG_RTE_MAX_MEMSEG_LISTS=64 used. Kindly let us know 1. Why are allocating 54.5 GB anonymous mapping 2. When will we use it ? Appreciate your quick response. Regards, Shanmugasundaram M