From: Sergej Benilov <sergej.beni...@googlemail.com> Date: Thu, 20 Jun 2019 11:02:18 +0200
> Since commit 605ad7f184b60cfaacbc038aa6c55ee68dee3c89 "tcp: refine TSO > autosizing", > outbound throughput is dramatically reduced for some connections, as sis900 > is doing TX completion within idle states only. > > Make TX completion happen after every transmitted packet. > > Test: > netperf > > before patch: >> netperf -H remote -l -2000000 -- -s 1000000 > MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 95.223.112.76 () > port 0 AF_INET : demo > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 327680 327680 253.44 0.06 > > after patch: >> netperf -H remote -l -10000000 -- -s 1000000 > MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to 95.223.112.76 () > port 0 AF_INET : demo > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 87380 327680 327680 5.38 14.89 > > Thx to Dave Miller and Eric Dumazet for helpful hints > > Signed-off-by: Sergej Benilov <sergej.beni...@googlemail.com> Applied.
