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Date: Tue, 29 May 2018 13:05:44 +0300
From: Vitalij Satanivskij <satan@ukr.net>
To: "Andrey V. Elsukov" <bu7cher@yandex.ru>
Cc: Vitalij Satanivskij <satan@ukr.net>, freebsd-net@freebsd.org
Subject: Re: GRE/gif/netgraph tunnel speed on 10Gbit channel
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Hello.

Looks like it's inposible to set as sysctl are readonly and through loader.conf it's also not setable.

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