Duncan Roe <duncan_roe@xxxxxxxxxxxxxxx> wrote: > /proc/net/netfilter/nfnetlink_queue has a line for every active queue. The 3rd > field is the number of queued packets. The max length is not in these lines but > kernel source suggests it is 1024 by default. Anyway, I updated nfq6 to be able > to set the max (using mnl functions). > > And I found the maximum number of queued packets is: 238. Further packets are > dropped. > > If I lower the max below 238, limiting occurs at the new max. > > So I propose to drop the advice to increase the queue max length when I revise > the libnetfilter_queue main page as part of the project to stop using > libnfnetlink. > > Anyone have any comments? This code is very old, it stems from a time where the network stack did not do any kind of packet aggregation. I think the hint should be removed as you suggest.
