Staging
v0.6.0
v0.6.0
Revision a0783cd0c810504427777e8aae20d5f4f8b652a0 authored by Corinna Vinschen on 19 November 2019, 09:09:39 UTC, committed by David S. Miller on 20 November 2019, 00:41:11 UTC
During performance testing, I found that one of my r8169 NICs suffered
a major performance loss, a 8168c model.
Running netperf's TCP_STREAM test didn't return the expected
throughput of > 900 Mb/s, but rather only about 22 Mb/s. Strange
enough, running the TCP_MAERTS and UDP_STREAM tests all returned with
throughput > 900 Mb/s, as did TCP_STREAM with the other r8169 NICs I can
test (either one of 8169s, 8168e, 8168f).
Bisecting turned up commit 93681cd7d94f83903cb3f0f95433d10c28a7e9a5,
"r8169: enable HW csum and TSO" as the culprit.
I added my 8168c version, RTL_GIGA_MAC_VER_22, to the code
special-casing the 8168evl as per the patch below. This fixed the
performance problem for me.
Fixes: 93681cd7d94f ("r8169: enable HW csum and TSO")
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent c9d55b6
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 418 bytes |
| generic_mpih-add1.c | -rw-r--r-- | 1.3 KB |
| generic_mpih-lshift.c | -rw-r--r-- | 1.5 KB |
| generic_mpih-mul1.c | -rw-r--r-- | 1.3 KB |
| generic_mpih-mul2.c | -rw-r--r-- | 1.3 KB |
| generic_mpih-mul3.c | -rw-r--r-- | 1.3 KB |
| generic_mpih-rshift.c | -rw-r--r-- | 1.5 KB |
| generic_mpih-sub1.c | -rw-r--r-- | 1.3 KB |
| longlong.h | -rw-r--r-- | 39.0 KB |
| mpi-bit.c | -rw-r--r-- | 1.5 KB |
| mpi-cmp.c | -rw-r--r-- | 1.6 KB |
| mpi-inline.h | -rw-r--r-- | 2.6 KB |
| mpi-internal.h | -rw-r--r-- | 5.3 KB |
| mpi-pow.c | -rw-r--r-- | 7.7 KB |
| mpicoder.c | -rw-r--r-- | 9.0 KB |
| mpih-cmp.c | -rw-r--r-- | 1.3 KB |
| mpih-div.c | -rw-r--r-- | 5.2 KB |
| mpih-mul.c | -rw-r--r-- | 13.6 KB |
| mpiutil.c | -rw-r--r-- | 2.7 KB |
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