From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.6 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D12EC49EA7 for ; Fri, 25 Jun 2021 03:36:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53B6661409 for ; Fri, 25 Jun 2021 03:36:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233100AbhFYDi6 (ORCPT ); Thu, 24 Jun 2021 23:38:58 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:47147 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233079AbhFYDi4 (ORCPT ); Thu, 24 Jun 2021 23:38:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624592196; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=n6YWGZCgKdORiyTIspLBMoxf3AjxZ1H1bG+LhjiRSD4=; b=Ek6o8ymkzxf+/v25xdnxUgHWqKmj9VdcJhLqOR1UlYAoEcLtgOmcq/Jdqiab0uHtB0zter Nux+z5R2LjKikDL+Q1s23lQAFOv1k3QFU7G4TF/qvcpWTKcXROwKcrOmHYLlE/tYydqlw6 RJhnKJgW31KCpF9Rpltg+KjApiV8igk= Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-556-jsZKArXLPkuRB70ei_D1fQ-1; Thu, 24 Jun 2021 23:36:32 -0400 X-MC-Unique: jsZKArXLPkuRB70ei_D1fQ-1 Received: by mail-pf1-f199.google.com with SMTP id q10-20020a056a0002aab02903096dd9b65eso382948pfs.17 for ; Thu, 24 Jun 2021 20:36:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=n6YWGZCgKdORiyTIspLBMoxf3AjxZ1H1bG+LhjiRSD4=; b=SRgGL1G7On9vjmn0LOhCGKvzeqxN3KQvq3AF+NBipqxE+C3CuTronsrdtXimpEojBh R2cVuK2CFBy8TfUDSXiBV2jwKhv+ZAB41MrjjYW85ZNUKoiRnCqMM4Vkk0XUFALG2hZK 0mbLS/+oQVX4WNt/Qtfbma0J2cV4JS0s2AmatHf0HJygeT7D+qET3DAcFR27TwHeHFch MVWO/8UO+RhNXP6phKaAjw2jczGY8jYZ6F69QC8nBOlbVV7WQV/4LM+zyLLUkz2sDDN0 mS1YGt8jwzs5GXXlTHVJYaXU/8of3f/s7eLCuThG47kEDSOq6g4aGz6e69Rf4JvIWnnV 7X+Q== X-Gm-Message-State: AOAM5336VTZTj4gmYYt+Plld1rMzGcD5UVHweSVUbTcq7xNIkCJX9eNX wSwjY1HHfzkiZmNfCrx4YMPQIrFVejQwxMWkQA+iTLCeZen6zA4gS5R4RUMWIBp9iQl+e0rNWTW yU2SkgySc7VuUK12LvVqDPPSO X-Received: by 2002:a62:1914:0:b029:304:502e:8a4c with SMTP id 20-20020a6219140000b0290304502e8a4cmr8395212pfz.63.1624592191581; Thu, 24 Jun 2021 20:36:31 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzoLNm1pYRdlFPxoooLwqhPAkuDyU5Xx85yhUXY44HZvMOs5voXOZZ4mcLAUSUMRHvm/vxt4g== X-Received: by 2002:a62:1914:0:b029:304:502e:8a4c with SMTP id 20-20020a6219140000b0290304502e8a4cmr8395183pfz.63.1624592191332; Thu, 24 Jun 2021 20:36:31 -0700 (PDT) Received: from wangxiaodeMacBook-Air.local ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id y206sm3980669pfb.3.2021.06.24.20.36.26 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Jun 2021 20:36:30 -0700 (PDT) Subject: Re: [PATCH net-next v2 1/2] selftests/ptr_ring: add benchmark application for ptr_ring To: Yunsheng Lin , davem@davemloft.net, kuba@kernel.org, mst@redhat.com Cc: brouer@redhat.com, paulmck@kernel.org, peterz@infradead.org, will@kernel.org, shuah@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, linuxarm@openeuler.org References: <1624591136-6647-1-git-send-email-linyunsheng@huawei.com> <1624591136-6647-2-git-send-email-linyunsheng@huawei.com> From: Jason Wang Message-ID: Date: Fri, 25 Jun 2021 11:36:21 +0800 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <1624591136-6647-2-git-send-email-linyunsheng@huawei.com> Content-Type: text/plain; charset=gbk; format=flowed Content-Transfer-Encoding: 8bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ÔÚ 2021/6/25 ÉÏÎç11:18, Yunsheng Lin дµÀ: > Currently ptr_ring selftest is embedded within the virtio > selftest, which involves some specific virtio operation, > such as notifying and kicking. > > As ptr_ring has been used by various subsystems, it deserves > it's owner's selftest in order to benchmark different usecase > of ptr_ring, such as page pool and pfifo_fast qdisc. > > So add a simple application to benchmark ptr_ring performance. > Currently two test mode is supported: > Mode 0: Both enqueuing and dequeuing is done in a single thread, > it is called simple test mode in the test app. > Mode 1: Enqueuing and dequeuing is done in different thread > concurrently, also known as SPSC(single-producer/ > single-consumer) test. > > The multi-producer/single-consumer test for pfifo_fast case is > not added yet, which can be added if using CAS atomic operation > to enable lockless multi-producer is proved to be better than > using r->producer_lock. > > Only supported on x86 and arm64 for now. > > Signed-off-by: Yunsheng Lin > --- > MAINTAINERS | 5 + > tools/testing/selftests/ptr_ring/Makefile | 6 + > tools/testing/selftests/ptr_ring/ptr_ring_test.c | 249 +++++++++++++++++++++++ > tools/testing/selftests/ptr_ring/ptr_ring_test.h | 150 ++++++++++++++ > 4 files changed, 410 insertions(+) Why can't you simply reuse tools/virtio/ringtest? Thanks