Re: [dpdk-dev] [PATCH v2] arch/arm: optimization for memcpy on AArch64

-Original Message- > Date: Tue, 5 Dec 2017 14:02:03 +0800 > From: Herbert Guan > To: dev@dpdk.org > CC: jerin.ja...@caviumnetworks.com, pbhagavat...@caviumnetworks.com, > jianbo@arm.com, Herbert Guan > Subject: [PATCH v2] arch/arm: optimization for memcpy on AArch64 > X-Mailer: git-s

[dpdk-dev] [PATCH v2] arch/arm: optimization for memcpy on AArch64

This patch provides an option to do rte_memcpy() using 'restrict' qualifier, which can induce GCC to do optimizations by using more efficient instructions, providing some performance gain over memcpy() on some AArch64 platforms/enviroments. The memory copy performance differs between different AAr