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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: <dev@dpdk.org>
Subject: [dpdk-dev] [PATCH v3 4/4] cache/slow-path: reduce cache align requirement for 128-byte cache targets
Date: Mon, 14 Dec 2015 10:02:56 +0530	[thread overview]
Message-ID: <1450067576-18803-5-git-send-email-jerin.jacob@caviumnetworks.com> (raw)
In-Reply-To: <1450067576-18803-1-git-send-email-jerin.jacob@caviumnetworks.com>

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 <jerin.jacob@caviumnetworks.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
---
 lib/librte_ether/rte_ethdev.h | 4 ++--
 1 file changed, 2 insertions(+), 2 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
-- 
2.1.0

  parent reply	other threads:[~2015-12-14  4:33 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-06 15:59 [dpdk-dev] [PATCH 0/2] fix performance/cache resource issues with 128-byte cache line targets Jerin Jacob
2015-12-06 15:59 ` [dpdk-dev] [PATCH 1/2] mbuf: fix performance/cache resource issue " Jerin Jacob
2015-12-07 15:21   ` Ananyev, Konstantin
2015-12-08 12:45     ` Jerin Jacob
2015-12-08 16:07       ` Ananyev, Konstantin
2015-12-08 17:49         ` Jerin Jacob
2015-12-09 13:44           ` Ananyev, Konstantin
2015-12-09 14:49             ` Jerin Jacob
2015-12-06 15:59 ` [dpdk-dev] [PATCH 2/2] bitmap: optimize for 128-bytes " Jerin Jacob
2015-12-06 16:30 ` [dpdk-dev] [PATCH 0/2] fix performance/cache resource issues with 128-byte " Thomas Monjalon
2015-12-07  7:26   ` Jerin Jacob
2015-12-07 11:40     ` Thomas Monjalon
2015-12-07 14:33       ` Jerin Jacob
2015-12-07 14:35         ` Thomas Monjalon
2015-12-10 16:36 ` [dpdk-dev] [PATCH v2 0/4] " Jerin Jacob
2015-12-10 16:36   ` [dpdk-dev] [PATCH v2 1/4] eal: Introduce new cache macro definitions Jerin Jacob
2015-12-10 16:36   ` [dpdk-dev] [PATCH v2 2/4] mbuf: fix performance/cache resource issue with 128-byte cache line targets Jerin Jacob
2015-12-10 16:36   ` [dpdk-dev] [PATCH v2 3/4] bitmap: optimize for 128-bytes " Jerin Jacob
2015-12-10 16:36   ` [dpdk-dev] [PATCH v2 4/4] cache/slow-path: reduce cache align requirement for 128-byte cache targets Jerin Jacob
2015-12-11 12:55     ` Ananyev, Konstantin
2015-12-11 13:07       ` Thomas Monjalon
2015-12-11 13:56       ` Jerin Jacob
2015-12-11 14:42         ` Ananyev, Konstantin
2015-12-14  4:32   ` [dpdk-dev] [PATCH v3 0/4] fix performance/cache resource issues with 128-byte cache line targets Jerin Jacob
2015-12-14  4:32     ` [dpdk-dev] [PATCH v3 1/4] eal: Introduce new cache macro definitions Jerin Jacob
2016-01-04 13:15       ` Olivier MATZ
2016-01-06 15:10         ` Jerin Jacob
2015-12-14  4:32     ` [dpdk-dev] [PATCH v3 2/4] mbuf: fix performance/cache resource issue with 128-byte cache line targets Jerin Jacob
2015-12-14  4:32     ` [dpdk-dev] [PATCH v3 3/4] bitmap: optimize for 128-bytes " Jerin Jacob
2015-12-14  4:32     ` Jerin Jacob [this message]
2016-01-29  7:45     ` [dpdk-dev] [PATCH v4 0/4] fix performance/cache resource issues with 128-byte " Jerin Jacob
2016-01-29  7:45       ` [dpdk-dev] [PATCH v4 1/4] eal: Introduce new cache line macro definitions Jerin Jacob
2016-01-29  7:45       ` [dpdk-dev] [PATCH v4 2/4] mbuf: fix performance/cache resource issue with 128-byte cache line targets Jerin Jacob
2016-01-29  7:45       ` [dpdk-dev] [PATCH v4 3/4] bitmap: optimize for 128-bytes " Jerin Jacob
2016-01-29  7:45       ` [dpdk-dev] [PATCH v4 4/4] cache/slow-path: reduce cache align requirement for 128-byte cache targets Jerin Jacob
2016-02-08  9:31       ` [dpdk-dev] [PATCH v4 0/4] fix performance/cache resource issues with 128-byte cache line targets Jerin Jacob
2016-02-08 10:24         ` Jan Viktorin
2016-02-08 10:52           ` Jerin Jacob
2016-02-08 12:56             ` Jan Viktorin
2016-02-11 11:53       ` Thomas Monjalon

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