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BLUPR0701MB1715; 5:eKgBRIyGDwezGWznS+OXDZNPM9e9QpMJnwhZlGBhzJSdGu/gRBbSOqNrqH11bT36rkUENtg0cmGSl141RynvHOqmCSLeKCztLQfZrFn07g3lCklzFCBG6GvrPf9XL7tDImgtBxRFfnm8d9R4tJvXQw==; 24:HOm6NthCSIaFcq3ymSn1aw5IR0ZuKIFk2j2MyBiaNiUtXsWK9vhB4ehc1fLf0IWVJyUQo3LYM78gVyY/2sLRqQ96Z9Q1v0W5bsmR4ngI0hE= SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: caviumnetworks.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Dec 2015 16:37:15.8121 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR0701MB1715 Subject: [dpdk-dev] [PATCH v2 4/4] cache/slow-path: reduce cache align requirement for 128-byte cache targets 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: , X-List-Received-Date: Thu, 10 Dec 2015 16:37:20 -0000 slow-path data structures need not be 128-byte cache aligned. Reduce the alignment to 64-byte to save the memory. No behavior change for 64-byte cache aligned systems as minimum cache line size as 64. Signed-off-by: Jerin Jacob --- lib/librte_ether/rte_ethdev.h | 4 ++-- lib/librte_mempool/rte_mempool.h | 2 +- lib/librte_ring/rte_ring.h | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h index bada8ad..4dbf73b 100644 --- a/lib/librte_ether/rte_ethdev.h +++ b/lib/librte_ether/rte_ethdev.h @@ -863,7 +863,7 @@ struct rte_eth_rxq_info { struct rte_eth_rxconf conf; /**< queue config parameters. */ uint8_t scattered_rx; /**< scattered packets RX supported. */ uint16_t nb_desc; /**< configured number of RXDs. */ -} __rte_cache_aligned; +} __rte_cache_min_aligned; /** * Ethernet device TX queue information structure. @@ -872,7 +872,7 @@ struct rte_eth_rxq_info { struct rte_eth_txq_info { struct rte_eth_txconf conf; /**< queue config parameters. */ uint16_t nb_desc; /**< configured number of TXDs. */ -} __rte_cache_aligned; +} __rte_cache_min_aligned; /** Maximum name length for extended statistics counters */ #define RTE_ETH_XSTATS_NAME_SIZE 64 diff --git a/lib/librte_mempool/rte_mempool.h b/lib/librte_mempool/rte_mempool.h index 6e2390a..8e5d10c 100644 --- a/lib/librte_mempool/rte_mempool.h +++ b/lib/librte_mempool/rte_mempool.h @@ -92,7 +92,7 @@ struct rte_mempool_debug_stats { uint64_t get_success_objs; /**< Objects successfully allocated. */ uint64_t get_fail_bulk; /**< Failed allocation number. */ uint64_t get_fail_objs; /**< Objects that failed to be allocated. */ -} __rte_cache_aligned; +} __rte_cache_min_aligned; #endif #if RTE_MEMPOOL_CACHE_MAX_SIZE > 0 diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h index de036ce..33166aa 100644 --- a/lib/librte_ring/rte_ring.h +++ b/lib/librte_ring/rte_ring.h @@ -123,7 +123,7 @@ struct rte_ring_debug_stats { uint64_t deq_success_objs; /**< Objects successfully dequeued. */ uint64_t deq_fail_bulk; /**< Failed dequeues number. */ uint64_t deq_fail_objs; /**< Objects that failed to be dequeued. */ -} __rte_cache_aligned; +} __rte_cache_min_aligned; #endif #define RTE_RING_NAMESIZE 32 /**< The maximum length of a ring name. */ -- 2.1.0