On Wed, 2015-05-06 at 16:06 -0400, Willem de Bruijn wrote:
> Do you suggest running lockless, similar to the rfs table?
> I can reduce history length to make hist_idx fit in the same
> cacheline.
I suggest not using hit_idx at all, and no lock either.
for (i = 0; i < ROLLOVER_HLEN; i++)
if (po->rollover->history[i] == rxhash)
count++;
po->rollover->history[prandom_u32() % ROLLOVER_HLEN] = rxhash;
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