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| author | Sergej Benilov <sergej.benilov@googlemail.com> | 2019-06-20 11:02:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-21 09:01:57 +0200 |
| commit | 1bca8f4566795d383b3b74966d21b2c1802ab8ef (patch) | |
| tree | 7c897244f907a18a229263e8696eaabf97a22174 /arch | |
| parent | 390431e628c697f6823cb9f73d59bebac92f637a (diff) | |
| download | linux-stable-1bca8f4566795d383b3b74966d21b2c1802ab8ef.tar.gz linux-stable-1bca8f4566795d383b3b74966d21b2c1802ab8ef.tar.bz2 linux-stable-1bca8f4566795d383b3b74966d21b2c1802ab8ef.zip | |
sis900: fix TX completion
[ Upstream commit 8ac8a01092b2added0749ef937037bf1912e13e3 ]
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.benilov@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions