From: Marvin Liu <yong.liu@intel.com>
To: bruce.richardson@intel.com, stephen@networkplumber.org
Cc: dev@dpdk.org, Marvin Liu <yong.liu@intel.com>
Subject: [dpdk-dev] [PATCH v2] config: enable packet data prefetch
Date: Wed, 23 Sep 2020 09:51:31 +0800 [thread overview]
Message-ID: <20200923015131.101203-1-yong.liu@intel.com> (raw)
In-Reply-To: <20200922082135.62240-1-yong.liu@intel.com>
Data prefetch instruction can preload data into cpu’s hierarchical
cache before data access. Virtualized data paths like virtio utilized
this feature for acceleration. Since most modern cpus have support
prefetch function, we can enable packet data prefetch as default.
Signed-off-by: Marvin Liu <yong.liu@intel.com>
---
v2: move define from meson.build to rte_config.h
---
config/rte_config.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/config/rte_config.h b/config/rte_config.h
index 0bae630fd9..8b007c4c31 100644
--- a/config/rte_config.h
+++ b/config/rte_config.h
@@ -101,6 +101,7 @@
#define RTE_LIBRTE_GRAPH_STATS 1
/****** driver defines ********/
+#define RTE_PMD_PACKET_PREFETCH 1
/* QuickAssist device */
/* Max. number of QuickAssist devices which can be attached */
--
2.17.1
next prev parent reply other threads:[~2020-09-23 1:56 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-22 8:21 [dpdk-dev] [PATCH] build: " Marvin Liu
2020-09-22 14:11 ` Stephen Hemminger
2020-09-23 2:00 ` Liu, Yong
2020-09-23 1:51 ` Marvin Liu [this message]
2020-10-14 22:02 ` [dpdk-dev] [PATCH v2] config: " Thomas Monjalon
2020-10-15 1:21 ` Liu, Yong
2020-10-15 4:09 ` Honnappa Nagarahalli
2020-10-15 8:23 ` Liu, Yong
2020-10-15 9:21 ` Thomas Monjalon
2020-10-15 14:38 ` Honnappa Nagarahalli
2020-11-03 1:57 ` [dpdk-dev] [PATCH v3] drivers/net: enable packet data prefetch on x86 Marvin Liu
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