[Bug 263877] net/wireguard: go implementation is twice faster than the kernel's one
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Date: Mon, 09 May 2022 12:04:21 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263877
Bug ID: 263877
Summary: net/wireguard: go implementation is twice faster than
the kernel's one
Product: Ports & Packages
Version: Latest
Hardware: amd64
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: Individual Port(s)
Assignee: decke@FreeBSD.org
Reporter: lq@et-toile.com
Flags: maintainer-feedback?(decke@FreeBSD.org)
Assignee: decke@FreeBSD.org
Dear Sirs,
I am having better performance using the wireguard-go port than the
wireguard-kmod port, I was expecting the opposite.
I thought it was only related to my servers, so I tried on other servers (tried
till now about 10 servers, using HP, Dell with igb/bge/cxl/ix) and still the
same thing.
Yesterday, I tried with a fresh installation on 2 servers and had the same
results.
So I am wondering if someone else is seeing the same problems.
Here are some iperf3 on 2 fresh FreeBSD 13 both servers are Xeon E5-2640
128Gram:
1)Np VPN lro and tso on:
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
[ 5] 1.00-2.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
[ 5] 2.00-3.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.61 MBytes
[ 5] 3.00-4.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
[ 5] 4.00-5.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.61 MBytes
[ 5] 5.00-6.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.61 MBytes
[ 5] 6.00-7.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
[ 5] 7.00-8.00 sec 1.10 GBytes 9.42 Gbits/sec 0 1.61 MBytes
[ 5] 8.00-9.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
[ 5] 9.00-10.00 sec 1.10 GBytes 9.41 Gbits/sec 0 1.61 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 11.0 GBytes 9.41 Gbits/sec 0 sender
[ 5] 0.00-10.00 sec 11.0 GBytes 9.41 Gbits/sec receiver
2)Np VPN lro and tso off:
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 518 MBytes 4.34 Gbits/sec 0 1.20 MBytes
[ 5] 1.00-2.00 sec 543 MBytes 4.56 Gbits/sec 0 1.61 MBytes
[ 5] 2.00-3.00 sec 542 MBytes 4.54 Gbits/sec 0 1.61 MBytes
[ 5] 3.00-4.00 sec 537 MBytes 4.51 Gbits/sec 0 1.61 MBytes
[ 5] 4.00-5.00 sec 536 MBytes 4.50 Gbits/sec 0 1.61 MBytes
[ 5] 5.00-6.00 sec 533 MBytes 4.47 Gbits/sec 0 1.61 MBytes
[ 5] 6.00-7.00 sec 533 MBytes 4.47 Gbits/sec 0 1.61 MBytes
[ 5] 7.00-8.00 sec 537 MBytes 4.50 Gbits/sec 0 1.61 MBytes
[ 5] 8.00-9.00 sec 539 MBytes 4.53 Gbits/sec 0 1.61 MBytes
[ 5] 9.00-10.00 sec 540 MBytes 4.52 Gbits/sec 0 1.61 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 5.23 GBytes 4.49 Gbits/sec 0 sender
[ 5] 0.00-10.03 sec 5.23 GBytes 4.48 Gbits/sec receiver
3)Wireguard-go:
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.01 sec 100 MBytes 832 Mbits/sec 307 383 KBytes
[ 5] 1.01-2.00 sec 23.0 MBytes 194 Mbits/sec 337 983 KBytes
[ 5] 2.00-3.00 sec 65.8 MBytes 553 Mbits/sec 530 41.4 KBytes
[ 5] 3.00-4.00 sec 89.8 MBytes 753 Mbits/sec 411 98.1 KBytes
[ 5] 4.00-5.01 sec 99.9 MBytes 830 Mbits/sec 337 1.14 MBytes
[ 5] 5.01-6.00 sec 24.5 MBytes 207 Mbits/sec 651 2.67 KBytes
[ 5] 6.00-7.00 sec 90.6 MBytes 762 Mbits/sec 472 79.1 KBytes
[ 5] 7.00-8.00 sec 88.6 MBytes 744 Mbits/sec 387 152 KBytes
[ 5] 8.00-9.01 sec 40.9 MBytes 339 Mbits/sec 791 1.35 MBytes
[ 5] 9.01-10.00 sec 81.3 MBytes 691 Mbits/sec 1423 91.2 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 705 MBytes 591 Mbits/sec 5646 sender
[ 5] 0.00-10.00 sec 703 MBytes 590 Mbits/sec receiver
4)Wireguard-kmod:
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 39.5 MBytes 331 Mbits/sec 0 485 KBytes
[ 5] 1.00-2.00 sec 39.0 MBytes 327 Mbits/sec 0 490 KBytes
[ 5] 2.00-3.00 sec 39.0 MBytes 327 Mbits/sec 0 490 KBytes
[ 5] 3.00-4.00 sec 39.0 MBytes 327 Mbits/sec 0 490 KBytes
[ 5] 4.00-5.00 sec 39.0 MBytes 327 Mbits/sec 0 490 KBytes
[ 5] 5.00-6.00 sec 39.0 MBytes 328 Mbits/sec 0 490 KBytes
[ 5] 6.00-7.00 sec 39.1 MBytes 327 Mbits/sec 0 490 KBytes
[ 5] 7.00-8.00 sec 39.1 MBytes 329 Mbits/sec 0 490 KBytes
[ 5] 8.00-9.00 sec 39.1 MBytes 328 Mbits/sec 0 490 KBytes
[ 5] 9.00-10.00 sec 39.1 MBytes 328 Mbits/sec 0 490 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 391 MBytes 328 Mbits/sec 0 sender
[ 5] 0.00-10.02 sec 391 MBytes 327 Mbits/sec receiver
Thank you for any suggestion to debug this issue.
Best regards
LQ
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