On Sat, 2016-04-30 at 20:41 -0700, Dave Taht wrote: > >>> > >>> 45.78% [kernel] [k] fq_codel_drop > >>> 3.05% [kernel] [k] ag71xx_poll > >>> 2.18% [kernel] [k] skb_release_data > >>> 2.01% [kernel] [k] r4k_dma_cache_inv > > The udp flood behavior is not "weird". The test is wrong. It is so filling > the local queue as to dramatically exceed the bandwidth on the link.
Well, just _kill_ the offender, instead of trying to be gentle. fq_codel_drop() could drop _all_ packets of the fat flow, instead of a single one. It is too cpu intensive to be kind to the elephant, since under pressure fq_codel_drop() needs to be called for every enqueue. Really, we should not try to let inelastic flows hurt us. I can provide a patch. _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k
