On 29.05.2018 10:17, Vitalij Satanivskij wrote: > 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.
You can try to increase kern.ipc.max_linkhdr up to 60-80 bytes. I think this can increase throughput a bit, since this can reduce the need to allocate extra mbuf when new IP header is encapsulated. -- WBR, Andrey V. Elsukov
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