[dpdk-dev] ixgbe vPMD question

Zoltan Kiss zoltan.kiss at linaro.org
Thu Sep 17 22:28:31 CEST 2015


Hi,

The recv function does a prefetch on cacheline1, however it seems to me 
that rx_pkts[pos] should be uninitialized pointer at that time:

http://dpdk.org/browse/dpdk/tree/drivers/net/ixgbe/ixgbe_rxtx_vec.c#n287

So I guess it prefetches only random value. Or am I missing something?

Regards,

Zoltan


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