On Sat, Dec 08, 2018 at 05:06:48PM +0100, Jesper Dangaard Brouer wrote: > You can add my: > Tested-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> > or > Acked-by: Jesper Dangaard Brouer <brouer@xxxxxxxxxx> > > I'm very happy that you work on this. And I've done micro-benchmark > testing of the patchset (and branch dma-direct-calls), which I've made > avail here: > https://github.com/xdp-project/xdp-project/blob/master/areas/dma/dma01_test_hellwig_direct_dma.org > > My XDP performance is back, minus the BPF-indirect call, and > net_rx_action napi->poll, and net_device->ndo_xdp_xmit calls. I > verified that manually disabling retpoline for these remaining netstack > retpoline-calls restore the performance full (well minus 1.5 nanosec). Thanks a lot for all the testing (and the initial report). I'd love to still gets this in for 4.21 if we can, but for that I'd need a lot more folks to carefull review it, especially the swiotlb and ia64 bits. So if we don't get that early next week I feel we might have to punt it to the next merge window.
