Date: Wed, 31 Jul 2024 07:45:55 -0500 From: Jason Bacon <bacon4000@gmail.com> To: Alex Arslan <ararslan@comcast.net>, mike tancsa <mike@sentex.net> Cc: freebsd-hackers@freebsd.org Subject: Re: Diagnosing virtual machine network issues Message-ID: <f89d2b67-f1de-4e63-9dcd-d208febeaba4@gmail.com> In-Reply-To: <799c7a15-52b8-4b44-bcbd-5ab6a3ef97a6@gmail.com> References: <FA265FAA-216D-4DCC-92C0-50017C17F7DE@comcast.net> <4a5a177a-5356-453c-8a09-f1d63d5d2e16@sentex.net> <4AB1C33B-DD93-4484-B63A-9FF8FE612B15@comcast.net> <E72DA395-3C66-4520-B58B-31C19E7462A3@comcast.net> <799c7a15-52b8-4b44-bcbd-5ab6a3ef97a6@gmail.com>
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On 7/30/24 15:27, Jason Bacon wrote: > Coincidentally, I'm experimenting with FreeBSD under Qemu on my Mac Mini > M1 and seeing about 93 mbits/sec in iperf, regardless of the NIC > configured. ( VM to bare metal host ) Bare metal to bare metal shows > 930 mbits/sec. Never mind. There was an intermittent issue of some sort, possibly a loose Ethernet cable? MacOS may have been falling back on WiFi during my VM tests. I'm now seeing native NIC performance under Qemu with -nic user,model=virtio: <<<ROOT@tarponvm.acadix>>> ~ 16 # iperf -c barracuda ------------------------------------------------------------ Client connecting to barracuda, TCP port 5001 TCP window size: 32.8 KByte (default) ------------------------------------------------------------ [ 1] local 10.0.2.15 port 60623 connected with 192.168.0.48 port 5001 [ ID] Interval Transfer Bandwidth [ 1] 0.00-10.01 sec 1.09 GBytes 939 Mbits/sec So Qemu is totally viable for running a high-performance FreeBSD VM on Apple Silicon. -- Life is a game. Play hard. Play fair. Have fun.
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