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DIR:OUT; SFP:1101; SCL:1; SRVR:VE1PR08MB4768; H:VE1PR08MB5149.eurprd08.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: EkjE20xc3oitsSebAo7uce7O9p/pzryW+AI9MqhoVzwAa3UXVhi2CAnCXGQAdvry+awQxJi9yzhmgA0cwGiJtYLAGsSi+hp0MMrkl7z0BER5McbLqSR7y1oAr4jn+pV/J095uWsUx7JOlNRrnX1eZ3YrRJmMWZKyNs3o3ZOd5FRuo/8OLE3nl08fAWpri7kPphqvNT6lL+L+g32r9ZQ7FUnlUoUPHkJsK7x3RBmAlXvvXCR74TWu/a4Ffhou8a8GYXVFKbAIxVyv3YaZzI7Ln2QjOcRNcONUB/Ajq+NUQvH5OM8iYE9Y2UUfUtv784bwSskhDvhjHDcia4toylMJNFYBwqxYikQL5kEGD12K8X1MmOtlc/SNLbqLTX7xp/C9RqfJEUbDMLtCFYsu7KDjXV1QbFceqixjanS6tN1EwCM= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5fddbb36-95c1-4299-e50a-08d6b6be8164 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Apr 2019 16:24:24.8917 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR08MB4768 Subject: Re: [dpdk-dev] [PATCH v2 3/3] test/ring_perf: replace sync builtins with atomic builtins 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: <20190401162424.vX4smxgYEgYJlOKRI64snFJ-8u61qCL4kJzlUHrWGqk@z> > diff --git a/app/test/test_ring_perf.c b/app/test/test_ring_perf.c index > ebb3939..e851c1a 100644 > --- a/app/test/test_ring_perf.c > +++ b/app/test/test_ring_perf.c > @@ -160,7 +160,11 @@ enqueue_bulk(void *p) > unsigned i; > void *burst[MAX_BURST] =3D {0}; >=20 > - if ( __sync_add_and_fetch(&lcore_count, 1) !=3D 2 ) > +#ifdef RTE_USE_C11_MEM_MODEL > + if (__atomic_add_fetch(&lcore_count, 1, __ATOMIC_RELAXED) !=3D 2) > #else > + if (__sync_add_and_fetch(&lcore_count, 1) !=3D 2) #endif > while(lcore_count !=3D 2) > rte_pause(); Since, rte_ring library has both C11 and non-C11 implementations, condition= al compilation should be fine here. >=20 > @@ -196,7 +200,11 @@ dequeue_bulk(void *p) > unsigned i; > void *burst[MAX_BURST] =3D {0}; >=20 > - if ( __sync_add_and_fetch(&lcore_count, 1) !=3D 2 ) > +#ifdef RTE_USE_C11_MEM_MODEL > + if (__atomic_add_fetch(&lcore_count, 1, __ATOMIC_RELAXED) !=3D 2) > #else > + if (__sync_add_and_fetch(&lcore_count, 1) !=3D 2) #endif > while(lcore_count !=3D 2) > rte_pause(); >=20 > -- > 2.7.4