Yuanhan Liu
a98240621d
vhost: remove rte_memcpy from header copy
First of all, rte_memcpy() is mostly useful for copying big packets by leveraging hardware advanced instructions like AVX. But for virtio net hdr, which is 12 bytes at most, invoking rte_memcpy() will not introduce any performance boost. And, to my suprise, rte_memcpy() is VERY huge. Since rte_memcpy() is inlined, it increases the binary code size linearly every time we call it at a different place. Replacing the two rte_memcpy() with directly copy saves nearly 12K bytes of code size! Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD license for the core libraries and drivers. The kernel components are GPLv2 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org
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