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 07C1243DFA; Thu, 4 Apr 2024 17:55:43 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 92B41402E8; Thu, 4 Apr 2024 17:55:42 +0200 (CEST) Received: from mail-pl1-f169.google.com (mail-pl1-f169.google.com [209.85.214.169]) by mails.dpdk.org (Postfix) with ESMTP id 74496402BC for ; Thu, 4 Apr 2024 17:55:40 +0200 (CEST) Received: by mail-pl1-f169.google.com with SMTP id d9443c01a7336-1e2987e9d06so10035885ad.2 for ; Thu, 04 Apr 2024 08:55:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1712246139; x=1712850939; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=lFXm2XT4kEljTSU3UR6PoGbjfcJHAw0m83ik+DShHoc=; b=q5dezYrhKeOREcJngsWmc4IbqXsX7tOK3ViZ9XE/5Mba+Bldx9GM2H4F3rS4N9kzuG +0UZHB536CY33sEpd4Rpsh2mntivMWrzNOkTQOzJZXmVkZp/poCHHDIf0/e0DopuA/gv 3tzX8CYOPELo7pBo73obhAws/TqgjSflj+IkgVEvt/D7DuHdWBO9dFXby7aaeWo3Urwv qBgzTa/RdPIM4dTMxweyhwb0zEwqLrSrMB6sawlXHrFjafiRgC+4xkw7cYQzsKQJDNPC YHjhVoGrY5oSMcTltv6JaiGzR2VfkeRyOCS4rnXtlrkLImfScWB4DbWkZlMFgk2b31Cz p7yQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712246139; x=1712850939; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=lFXm2XT4kEljTSU3UR6PoGbjfcJHAw0m83ik+DShHoc=; b=t/ELnCgzJ0DILxZuzj7SViJnlLfEsDBCMFlGryailMpuo2cbJdiHyZj6xQ9oQJcClV 52i02rIGKdGF6rVvAX+WM3VB8gTUE8kDWGufs4aeEkD0fqgAtCVQcMKATk0MZKotjRBb D4Z7utDxSzC1Pzmv0LB6sUuqFw20LksbD/1a3FV1WekXb+4fQV2yLGqqVL+vazbTvdLY p+TvhPoSq+RFxUYgs3kneXZeU7njL63GyhwYEp3LsQkP54ukIDwjvM6z3zlY/DVbmQoi 0tx3hvqQH7uhioW2CjmVvOm/dRIbCglDhVab3ODeDhmQY8Bt3bAbZlYY/7+c6JkqMiHz rwOw== X-Forwarded-Encrypted: i=1; AJvYcCW7cZun/Wia5ScD73lDX769kCdYkmfjTMLHgzucxzkNdP12YJezwI4pvdD/k29A6oGi9PUJOmBfj2C9CQA= X-Gm-Message-State: AOJu0YxU1yvVEY3IwldQhgMPETg1Ly6NwyhoorDdoAY/QzO3tn+v21dk rcnjdrcWzvjauDy/siE1cI3daktJ/H7qx/qAWLDYJpQ6slqGBMsuZV6U3gaT2zA= X-Google-Smtp-Source: AGHT+IG4fAtuyB0DchiaB+PQV5Y29MbaeiFGTzA6InFX1N6hDWc48qKEATdzC4zm9wkEMln8yn9sXQ== X-Received: by 2002:a17:902:9698:b0:1e2:a2ca:6366 with SMTP id n24-20020a170902969800b001e2a2ca6366mr2293019plp.21.1712246139636; Thu, 04 Apr 2024 08:55:39 -0700 (PDT) Received: from hermes.local (204-195-96-226.wavecable.com. [204.195.96.226]) by smtp.gmail.com with ESMTPSA id q13-20020a170902dacd00b001def088c036sm15729076plx.19.2024.04.04.08.55.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Apr 2024 08:55:39 -0700 (PDT) Date: Thu, 4 Apr 2024 08:55:37 -0700 From: Stephen Hemminger To: Morten =?UTF-8?B?QnLDuHJ1cA==?= Cc: "Bruce Richardson" , , , Subject: Re: [PATCH v2] eal/x86: improve rte_memcpy const size 16 performance Message-ID: <20240404085537.21469e1f@hermes.local> In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35E9F360@smartserver.smartshare.dk> References: <20240302234812.9137-1-mb@smartsharesystems.com> <20240303094621.16404-1-mb@smartsharesystems.com> <98CBD80474FA8B44BF855DF32C47DC35E9F35C@smartserver.smartshare.dk> <98CBD80474FA8B44BF855DF32C47DC35E9F360@smartserver.smartshare.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable 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 On Thu, 4 Apr 2024 17:37:53 +0200 Morten Br=C3=B8rup wrote: > > I would tend to agree with Stephen that whereever possible we should use > > the built-in memcpy calls. Hence my suggestion of re-introducing the ma= cro. =20 >=20 > I agree in principle, but strongly prefer data to back up such changes in= the fast path. godbolt.org shows same instructions for the cases I looked at.