Date: Tue, 29 May 2018 10:17:33 +0300 From: Vitalij Satanivskij <satan@ukr.net> To: freebsd-net@freebsd.org Subject: GRE/gif/netgraph tunnel speed on 10Gbit channel Message-ID: <20180529071733.GA18182@hell.ukr.net>
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Hello.
Trying to build a tunnel between two machines with 10Gbit network (ixl0: <Intel(R) Ethernet Connection 700 Series PF Driver, Version - 1.9.9-k>)
I saw that the maximum speed of the tunnel is 1.6gbit for gre/gif and arround 544-600mbit for ng0 (netgraph tunnel via TCP)
Hardware is:
CPU: AMD EPYC 7251 8-Core Processor
FreeBSD/SMP: 2 package(s) x 8 core(s) x 2 hardware threads
real memory = 137438953472 (131072 MB)
Also check same on
CPU: Intel(R) Xeon(R) CPU E5-2660 v4 x2
CPU: AMD EPYC 7351 16-Core Processor x2
Come intel E3-1230 and so on.
Version of system - 11.2-BETA2 FreeBSD 11.2-BETA2 #0 r334027
Also I'm test FreeBSD 11.1-PRERELEASE #6 r320593
Kernel GENERIC and CUSTOM (mostly cut off not used drivers from kernel)
For testing I'm use iperf on pure 10Gbit chanel easy get 9.8-9.9Gbit's
For tunnel's even try to check multiply instance of iperf (eg on different ports)
So question are - Is it normal speed for tunnel's.
Which tuning I can try to speed up it.
Thank you.
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