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DIR:OUT; SFP:1101; SCL:1; SRVR:BY1PR0701MB1723; H:localhost.caveonetworks.com; FPR:; SPF:None; MLV:sfv; LANG:en; X-Microsoft-Exchange-Diagnostics: =?us-ascii?Q?1; BY1PR0701MB1723; 23:93C34ni19GjVmMORI8PCi32rtB9X0WPV9475PDi?= =?us-ascii?Q?eGSx24nLoR5ebZ+ioNuaU/8EtmLWeoSCP0Ta0uO33xEcj0/2NUwxk2oCzEp7?= =?us-ascii?Q?y2FdWD7f6A3HTtAPxHsV3CICeypnZd+BsfETzAnkpb42RMQovFECa/M24svZ?= =?us-ascii?Q?Q5kxmO6pTZdpD2d0E7wQY0+t4S0tOYAinQyKNbVckZnhJSQAm9eWzjl3oDvt?= =?us-ascii?Q?ZDwF57AWxSqZv80p28cwOJdJMnu+ug8D4BfIL5x8kYrgAYfyUrsSnZ2/VKgn?= =?us-ascii?Q?tBaIWY9VmfaGJ0GRFByu6MMgZcdQCeBO+dJ6IG9MUzSWFo4Y9BE/ILLXmOkr?= =?us-ascii?Q?1sO9h9f/fNsT85UtaAAcR5kiY9tZ3EHp0N+i6rX5teY70VkfAWiHCwEc/R3W?= =?us-ascii?Q?zDLv0dOrdR0IchvNV38PHpzD6uKS7OH8F0A0qT+Yp0vDbo0HHySX3NMn6Eqk?= =?us-ascii?Q?Atgf7qb9ZKFTdg/1yLwn4DMM8MGOtlF3yAVHY4orHcArO5+eGASf+xKXsRgp?= =?us-ascii?Q?JdEkL61Bco0UgmFAYMfBU0/f4jJMprXvJhCBOe+z5zqZDT/kddSmydtlVaLh?= =?us-ascii?Q?CtMegTK17JfJukIgm+MSg7toDA9Zhfxxwf8cDVYkmSfYga2bbF+PrzNQ/JvY?= =?us-ascii?Q?isdWLLiL1SQZAcw5EjqX3NIrNtYSJZUX+BTtdCywp9IL0dtWIKZxxl7QRzDg?= =?us-ascii?Q?+mVq4lUVz0nAX9FSHeoCUls9BKBE2/nmiPHLqaiAxBGhEvmoFZWW5nL3J7+G?= =?us-ascii?Q?mezXYzr1SbiJBxwUtIjqHiormGZHlPmEsTr/sxR4YSu2ZhiZjk71tejq3Psq?= =?us-ascii?Q?ZlAzdO9yS9tW6tx3ObuccafuSMHfhG9CeoYhncTw55WTvhRPL1QATsfJWmEc?= =?us-ascii?Q?ocy/KE8VbYJfGPw6MuRJzCvwJb2HyABRk63Ah57oebDEgeasaPNwk8vSK8y4?= =?us-ascii?Q?C9NPr7hi4HWsMjenFUQSo5Q17SVNKyk5wI36+sqtrOA=3D=3D?= X-Microsoft-Exchange-Diagnostics: 1; BY1PR0701MB1723; 5:TrPHYkh82IzuBoNfw3b9y4ztQFNcJY1QB1v02SVxd0jhLC6MtrNiuYqXbNdkJTlHJh8AFSCkqsaUe7/lNzfF5PM9z/t85pvLzvRUFetV9J2aM0xfhR+QLetu8zSdgbraog2kED/CtEWU+/JhqYAadQ==; 24:bRiAlSSj3CmH0ObCX4aKnj65G4YeIRRjs4J0lMQzhCp2nwykMsbd3SQR6LpzcI83o7NpmvwFWb/2TOr3119uqUQULLwY5ex9AKIaxYA3/N8=; 7:WNuh5LXtd9E9/ZOXhECPh0WjWVshDKtSJU1VGN0F14CxldrIFHni5Y9XhpLlB15/iL5Fu6CPra5LWkiVaasv3AQf+4DQ/w9Ym6dQ98qYTSh1tKeB+1BhI+v0TmRmcCAImf2TK5B7DermrtC4hi5/0cUhnQvM4rjsPnH3WsTDct3cVa4GLswJlPo+Tz91RnLa SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: caviumnetworks.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 May 2016 12:00:11.2426 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR0701MB1723 Subject: [dpdk-dev] [PATCH] app/testpmd: add packet data prefetch in macswap loop X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" prefetch the next packet data address in advance in macswap loop for performance improvement. Signed-off-by: Jerin Jacob --- app/test-pmd/macswap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/app/test-pmd/macswap.c b/app/test-pmd/macswap.c index 154889d..c10f4b5 100644 --- a/app/test-pmd/macswap.c +++ b/app/test-pmd/macswap.c @@ -113,6 +113,9 @@ pkt_burst_mac_swap(struct fwd_stream *fs) if (txp->tx_ol_flags & TESTPMD_TX_OFFLOAD_INSERT_QINQ) ol_flags |= PKT_TX_QINQ_PKT; for (i = 0; i < nb_rx; i++) { + if (likely(i < nb_rx - 1)) + rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[i + 1], + void *)); mb = pkts_burst[i]; eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);