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List:       wireguard
Subject:    Very modest performance observed on macOS
From:       Jari Tenhunen <jari.tenhunen () iki ! fi>
Date:       2019-04-18 10:20:14
Message-ID: CAFC8xAL5U0enO9+-rKGz4xhXnNLsr1rkQ_Z+fFSWMp=4=gtNGA () mail ! gmail ! com
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Hi,

I experimented with WireGuard on a 13" MacBook Pro (2018, core i5) and was
surprised to see that all implementations running on macOS (WireGuard app
from App Store, Boringtun, and WireGuard-go) achieved a max throughput of
only 80-100 Mbit/s. And what is even more strange, when running these same
implementations in a Linux container on Docker (on the same machine,
against the same peer), the performance is clearly better, close to 150
Mbit/s.  In the latter case, it is probably limited by the peer HW
performance (Raspberry Pi 3B), so it could be even higher. I got these
throughput numbers by running iperf inside the tunnel.

Do you have any idea what is limiting the performance on macOS? Inefficient
utun driver?


BR,
Jari

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<div dir="ltr"><div dir="ltr">Hi,<div><br></div><div>I experimented with WireGuard on \
a 13&quot; MacBook Pro (2018, core i5) and was surprised to see that all \
implementations running on macOS (WireGuard app from App Store, Boringtun, and \
WireGuard-go) achieved a max throughput of only 80-100 Mbit/s. And what is even more \
strange, when running these same implementations in a Linux container on Docker (on \
the same machine, against the same peer), the performance is clearly better, close to \
150 Mbit/s.   In the latter case, it is probably limited by the peer HW performance \
(Raspberry Pi 3B), so it could be even higher. I got these throughput numbers by \
running iperf inside the tunnel.</div><div><br></div><div>Do you have any idea what \
is limiting the performance on macOS? Inefficient utun \
driver?</div><div><br></div><div><br></div><div>BR,</div><div>Jari</div></div></div>



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