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LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 57Fx2LuOPAKsxg/KELOHHfCb2w3qDbNtjjCGPwfOOddRvGD/wAXXhvcJ44YHuoIJGJJK08VmPa2j5yobJzj1UdCTlA6AUS6K2hFi0p5duIAFH1avyL5i7j41UQN76iqcIWTTme4suIsqgFYkwzfwiocoTxcpvGlQZ2CmvUct4qQwQmojgyy9/Em6ah3ljGP1WBxwt+UDLCsyCDqQP/AC13segqJo3pjbqEPT+AdnPZOuFJrWrBfSlxZ8cmByeFpCB/hpXRq4WvKEK47JLdzUIDIxEah0Rh42yLkk/gUM4HMLD1MeoT3n/7l0jflIkzJVZN3Me6w0cWKaXzbNXmWrSbux1neZsH9hTCmrdbXHW170nF11s5R0oqVFrDLCkzre0r7PLj84XNCdAEQUWeUkr4QQ4/f/GxOk3oIOnLwDxw8= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1ce519df-e7ec-4f7c-12cd-08d6b2aa0664 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Mar 2019 11:47:44.3381 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB3072 Subject: [dpdk-dev] [PATCH] app/test-crypto-perf: improve dequeue logic 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" Message-ID: <20190327114744.pKwQCJwaksE1Fvr-km6O4dxyswLGO5NcMfnOW3iA3AI@z> In case of hardware PMDs (which may take a longer duration for processing the packets), there may be a case when the number of enqueued packets are more than the dequeued. So if the difference is more than 8 times the burst size, more dequeue operations should be performed otherwise all the buffers will be blocked in hardware. Signed-off-by: Akhil Goyal --- app/test-crypto-perf/cperf_test_throughput.c | 40 +++++++++++--------- 1 file changed, 23 insertions(+), 17 deletions(-) diff --git a/app/test-crypto-perf/cperf_test_throughput.c b/app/test-crypto= -perf/cperf_test_throughput.c index 2767f4ea8..d24a6dda0 100644 --- a/app/test-crypto-perf/cperf_test_throughput.c +++ b/app/test-crypto-perf/cperf_test_throughput.c @@ -208,23 +208,29 @@ cperf_throughput_test_runner(void *test_ctx) =20 =20 /* Dequeue processed burst of ops from crypto device */ - ops_deqd =3D rte_cryptodev_dequeue_burst(ctx->dev_id, ctx->qp_id, - ops_processed, test_burst_size); - - if (likely(ops_deqd)) { - /* Free crypto ops so they can be reused. */ - rte_mempool_put_bulk(ctx->pool, - (void **)ops_processed, ops_deqd); - - ops_deqd_total +=3D ops_deqd; - } else { - /** - * Count dequeue polls which didn't return any - * processed operations. This statistic is mainly - * relevant to hw accelerators. - */ - ops_deqd_failed++; - } + do { + ops_deqd =3D rte_cryptodev_dequeue_burst( + ctx->dev_id, ctx->qp_id, + ops_processed, test_burst_size); + + if (likely(ops_deqd)) { + /* Free crypto ops for reuse */ + rte_mempool_put_bulk(ctx->pool, + (void **)ops_processed, + ops_deqd); + + ops_deqd_total +=3D ops_deqd; + } else { + /** + * Count dequeue polls which didn't + * return any processed operations. + * This statistic is mainly relevant + * to hw accelerators. + */ + ops_deqd_failed++; + } + } while (ops_enqd_total - ops_deqd_total > + test_burst_size * 8); =20 } =20 --=20 2.17.1