From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8284CA09EF; Mon, 21 Dec 2020 17:15:19 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 04C7CCAAF; Mon, 21 Dec 2020 17:15:18 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by dpdk.org (Postfix) with ESMTP id 2207DCAAD for ; Mon, 21 Dec 2020 17:15:15 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608567313; 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; bh=lz3Wq6SmZvRR3o9+JDDte+1oZOSMlaxztaYOFFPpkUU=; b=dUwLVgcODX3FydqV3TTrSB1fgS5XUxdsL5PrpP5wkmY16AV7UUGk6M+amt5FR/iVYIk9Vs dwnLO/Vk8IRBu6Z3JiH9TsfYr9ZwEiRcYc864ygEMLDxC2kGMCw0GcXvLXJmDUZABnyDe/ fLwhvYmAu7M15BRWRQPRRvLYNfu+qH8= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-197-ZSoR5YJ3OXuzY4HB_As5OA-1; Mon, 21 Dec 2020 11:15:11 -0500 X-MC-Unique: ZSoR5YJ3OXuzY4HB_As5OA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 794651005D4D; Mon, 21 Dec 2020 16:15:10 +0000 (UTC) Received: from max-t490s.redhat.com (unknown [10.36.110.46]) by smtp.corp.redhat.com (Postfix) with ESMTP id 364476F13D; Mon, 21 Dec 2020 16:14:59 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, chenbo.xia@intel.com, amorenoz@redhat.com, david.marchand@redhat.com, olivier.matz@6wind.com Cc: Maxime Coquelin Date: Mon, 21 Dec 2020 17:14:53 +0100 Message-Id: <20201221161456.31696-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=maxime.coquelin@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="US-ASCII" Subject: [dpdk-dev] [PATCH 0/3] net/virtio: make virtqueue struct cache-friendly 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This series optimizes the cache usage of virtqueue struct, by make a "fake" mbuf being dynamically allocated in Rx virtnet struct, by removing a useless virtuque pointer into the virtnet structs and by moving a few fields to pack holes. With these 3 patches, the virtqueue struct size goes from 576 bytes (9 cachelines) to 248 bytes (4 cachelines). Maxime Coquelin (3): net/virtio: remove reference to virtqueue in vrings net/virtio: allocate fake mbuf in Rx queue net/virtio: pack virtuqueue struct drivers/net/virtio/virtio_ethdev.c | 46 +++++++++++-------- drivers/net/virtio/virtio_rxtx.c | 36 +++++++-------- drivers/net/virtio/virtio_rxtx.h | 5 +- drivers/net/virtio/virtio_rxtx_packed_avx.c | 14 +++--- drivers/net/virtio/virtio_rxtx_simple.h | 2 +- .../net/virtio/virtio_rxtx_simple_altivec.c | 2 +- drivers/net/virtio/virtio_rxtx_simple_neon.c | 2 +- drivers/net/virtio/virtio_rxtx_simple_sse.c | 2 +- .../net/virtio/virtio_user/virtio_user_dev.c | 4 +- drivers/net/virtio/virtio_user_ethdev.c | 2 +- drivers/net/virtio/virtqueue.h | 24 ++++++---- 11 files changed, 72 insertions(+), 67 deletions(-) -- 2.29.2