Development discussion of WireGuard
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From: Kyle Sanderson <>
Subject: absolutely terrible wireguard performance on a 4ghz box - need tuning help
Date: Mon, 24 Oct 2022 23:58:33 -0700	[thread overview]
Message-ID: <> (raw)

hi wireguard,

APU2C4 - AMD Embedded G series GX-412TC, 1 GHz quad Jaguar core with
64 bit and AES-NI support

There has to be a way to improve this. I'm getting 20-40MB/s (causing
a system load of 6 on this poor box) where SSHFS in comparison is
still able to fly. Traffic not traversing the tunnel is also,
strangely, impacted as well. I have the Intel i210AT controller, which
doesn't appear to have any offloading to it when wireguard is present.

ksoftirqd/0 spins at around 50%, ksoftirqd/1 spins around 20%, and the
other 12(!) wg-crypt threads hover around 20% respectively.
If I disable wg I'm able to get line-rate through acceleration.
The other 2 ksoftirqds sit around 5% respectively. kworker events
jumping between 10-25%.

Regrettably openwrt doesn't appear to have perf available...


             reply	other threads:[~2022-11-04 15:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-25  6:58 Kyle Sanderson [this message]
2022-11-04 20:10 ` Daryl Richards
2022-11-04 20:55 ` Metin Evrim Ulu

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