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authorZhiyong Yang <zhiyong.yang@intel.com>2018-11-05 03:45:25 -0500
committerJohn Lo <loj@cisco.com>2018-11-05 21:02:38 +0000
commitb0073e276d9e12f02f8f9874fd09ae532a0baa47 (patch)
treef2db5ddcf53e9bc48421a6ff82cbee0fcbe75f2d /test/test_jvpp.py
parent2130284302788759c7b2644efb801b84411e342e (diff)
vxlan: prefetch extra one cacheline holding external header
For vxlan_encap, code will touch memory area before the field "data" in struct vlib_buffer_t, however so far it is not prefetched in cache yet for this graph node. After applying the patch, 2~3 cycles per pkt for vxlan4_encap can be saved on Haswell. It will bring a lot of benefits on DVN platform too. Change-Id: I26d8c57fb3d2415726be5367117d73eb715e35ad Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
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