On Fri, Jun 26, 2015 at 9:35 AM, Jonathan Morton <chromati...@gmail.com> wrote: > These would be hardware tail drops - there might not be a physical counter > recording them. But you could instrument three driver to see whether the > receive buffer is full when serviced.
from drivers/net/ethernet/marvel/mvneta.c: /* Max number of Rx descriptors */ #define MVNETA_MAX_RXD 128 this is probably too small, especially given the 64 it is willing to wait for. At the same time, it is too large, as there are 8 hardware queues in play here. So you get a huge burst from one flow, it gros it all together.... aggghh... /* Max number of Tx descriptors */ #define MVNETA_MAX_TXD 532 this realllllly needs BQL. Same problem(s). Only worse. > > - Jonathan Morton > > > _______________________________________________ > Cerowrt-devel mailing list > Cerowrt-devel@lists.bufferbloat.net > https://lists.bufferbloat.net/listinfo/cerowrt-devel > -- Dave Täht worldwide bufferbloat report: http://www.dslreports.com/speedtest/results/bufferbloat And: What will it take to vastly improve wifi for everyone? https://plus.google.com/u/0/explore/makewififast _______________________________________________ Cerowrt-devel mailing list Cerowrt-devel@lists.bufferbloat.net https://lists.bufferbloat.net/listinfo/cerowrt-devel
