Date: Wed, 17 Apr 2019 17:37:09 +0200 (CEST) From: Wojciech Puchar <wojtek@puchar.net> To: "D. Ebdrup" <debdrup@gmail.com> Cc: freebsd-hackers <freebsd-hackers@freebsd.org> Subject: Re: openvpn and system overhead Message-ID: <alpine.BSF.2.20.1904171736080.94788@puchar.net> In-Reply-To: <CANtgGBr83UW_7LDA9==T3XwMYUCUvnpDuf0jrh7n0Pd_0Hoixg@mail.gmail.com> References: <alpine.BSF.2.20.1904171707030.87502@puchar.net> <CANtgGBr83UW_7LDA9==T3XwMYUCUvnpDuf0jrh7n0Pd_0Hoixg@mail.gmail.com>
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> I believe you might've run into one of the design decisions that was > made by OpenVPN, specifically related to how it exclusively favours > spawning more processes rather than implement any form of threading. well i know i can divide it to many processes but my question wasn't about that, but about it's cpu usage. most if it is system time. can this overhead be reduced? > > I believe it's currently on the roadmap [1] of things that they would > like to address at one point, but I'm not aware of any work being done > on it at present. > > [1]: https://community.openvpn.net/openvpn/wiki/RoadMap#Threading > > Daniel Ebdrup aka. D. Ebdrup. > > On Wed, Apr 17, 2019 at 5:11 PM Wojciech Puchar <wojtek@puchar.net> wrote: >> >> 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? >> >> >> _______________________________________________ >> freebsd-hackers@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-hackers >> To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > >
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