Date: Wed, 17 Apr 2019 17:54:01 +0200 (CEST) From: Wojciech Puchar <wojtek@puchar.net> To: Miroslav Lachman <000.fbsd@quip.cz> Cc: Wojciech Puchar <wojtek@puchar.net>, freebsd-hackers@freebsd.org Subject: Re: openvpn and system overhead Message-ID: <alpine.BSF.2.20.1904171753480.98262@puchar.net> In-Reply-To: <8648d069-2172-2c09-8e59-d66a8265a120@quip.cz> References: <alpine.BSF.2.20.1904171707030.87502@puchar.net> <8648d069-2172-2c09-8e59-d66a8265a120@quip.cz>
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On Wed, 17 Apr 2019, Miroslav Lachman wrote: > Wojciech Puchar wrote on 2019/04/17 17:08: >> i'm running openvpn server on Xeon E5 2620 server. >> >> when receiving 100Mbit/s traffic over VPN it uses 20% of single core. >> At least 75% of it is system time. >> >> Seems like 500Mbit/s is a max for a single openvpn process. >> >> can anything be done about that to improve performance? > > You can play with ciphers, AES-NI etc. > https://community.openvpn.net/openvpn/wiki/Gigabit_Networks_Linux > > Miroslav Lachman > > again. it's system time mostly not user time.
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