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 C4C16A00C2 for ; Tue, 3 Jan 2023 10:34:08 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E5D07410F9; Tue, 3 Jan 2023 10:34:04 +0100 (CET) Received: from mail-ej1-f50.google.com (mail-ej1-f50.google.com [209.85.218.50]) by mails.dpdk.org (Postfix) with ESMTP id 8680240698 for ; Wed, 28 Dec 2022 16:05:27 +0100 (CET) Received: by mail-ej1-f50.google.com with SMTP id t17so38922822eju.1 for ; Wed, 28 Dec 2022 07:05:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:subject:from:to:content-language :user-agent:mime-version:date:message-id:from:to:cc:subject:date :message-id:reply-to; bh=Kl+uBAnMe7RcVhQPkht/vHqbwfkWqxV6cqJdVoN4ElY=; b=BINVE7HvZv4aDuRpm+zbNN024wglX+bvcoAVmv03NteXWdqo/WSiaKgF1IXbY/216W J4+nCOTHmkwLNSHGG3caO4Ng/Os0TMEDws6pOsW2tE9HeR31hYjBbYJnTxcVOR1laXK7 /OlOihS6n61KmqepJsC1VOujePT633Dqv6+FxCf0lV9xg2YDqSrgoC52q/UzCIoHdrsR 3xVTaoA9acuCv2JZ0MhJSbQ2NT6AI252rL9WNrt9/UT9vqhI3VEvU/xGleficoBCJV/V MS27EDNTohaQNbzNHx59RaFMDJmJ1ULiF7yFXEhPtWptU7qcwqJ6PREOm8x9B6T0jNms Judw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:subject:from:to:content-language :user-agent:mime-version:date:message-id:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=Kl+uBAnMe7RcVhQPkht/vHqbwfkWqxV6cqJdVoN4ElY=; b=Dao/AHEY4/ldH4LGVL6qULkMMNanqFTf8bA9H305JZSncJWs6SCV7DdnVXL8TVWXw6 CTWViCgJBpj7sYSwZ+AwA9l7nbled0q4+t62qI9/uAkL/VKU0HPROsHX2XFxYwaJMSNa 9jlsOnlpNUoWdrmXRRPKfBi+CSWH4BYjFzgVvGvpUWAu51VZOnH8C1w7yRG421Vtvajd 4Pkpok9Sj5e3p/IBmj8Z8bz7DafnY1oeERvgAH/MjNsTmSvv5VrBfqIVKfrL+MqOc49t J0dJNJBE8dnu0HliMBcIhX6u9ZueSAR7H8n6F05EqalK52yq3ZGFu54++NOqvd8aYy0M zZkg== X-Gm-Message-State: AFqh2kppL2zEBTgelYInTxCtXSSFQp1zfw11CBR8gRJZGf60o8Fk99e0 niigV6folPDuuU5p1iWoVn5+NHml1WwGgw== X-Google-Smtp-Source: AMrXdXvTOd0/PeRtocVMt+AYaU2GcHiIDdkc3GAX16WxUJGdJws5mU0suuelgx/dU2T/rOm00IV49A== X-Received: by 2002:a17:906:6dd4:b0:7c1:1fcf:266c with SMTP id j20-20020a1709066dd400b007c11fcf266cmr21262480ejt.14.1672239926912; Wed, 28 Dec 2022 07:05:26 -0800 (PST) Received: from ?IPV6:2a01:e11:7002:c610:5923:70ad:e33d:ff77? ([2a01:e11:7002:c610:5923:70ad:e33d:ff77]) by smtp.gmail.com with ESMTPSA id kz26-20020a17090777da00b007c1a6692aeesm7408457ejc.189.2022.12.28.07.05.25 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 28 Dec 2022 07:05:26 -0800 (PST) Message-ID: <9f03bfd8-fafe-38da-31b3-74a79ab1dae3@gmail.com> Date: Wed, 28 Dec 2022 16:05:25 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.5.0 Content-Language: en-US, it-IT To: users@dpdk.org From: Luca Anastasio Subject: Test setup information Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Mailman-Approved-At: Tue, 03 Jan 2023 10:34:03 +0100 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 Dear DPDK developers, I would like to ask for some clarifications, especially regarding the test setups used in whitepapers and performance reports (such as https://fast.dpdk.org/doc/perf/DPDK_21_11_Mellanox_NIC_performance_report.pdf). I couldn't find an explicit statement on whether the packet generator has to be started after or before starting the test program. In case of starting the packet generator before the test program, are there any precautions to be observed? Are there any performance issues due to receiving too many packets between the port initialization and the start of RX burst invocation? Is there any specific sequence of function calls to stick to in this case? Looking forward to your kind reply Best regards Luca Anastasio