Date: Thu, 22 Feb 2007 18:10:57 +0200 From: Alexander Motin <mav@alkar.net> To: Alex Povolotsky <tarkhil@webmail.sub.ru> Cc: freebsd-net@freebsd.org Subject: Re: mpd success stories, anyone? Message-ID: <45DDC091.3060903@alkar.net> In-Reply-To: <45DDBBB3.3020900@webmail.sub.ru> References: <1172056982.00691952.1172043601@10.7.7.3> <45DC2FC1.3030408@alkar.net> <45DC3718.7010804@webmail.sub.ru> <45DC39BC.5020707@alkar.net> <45DC44AF.30005@webmail.sub.ru> <45DC4640.8030309@alkar.net> <45DDBBB3.3020900@webmail.sub.ru>
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Alex Povolotsky wrote: > Thanks, it seems to be more or less stable; however, throughput is quite > little, lots of packets lost and "No buffer space available" on attempt > to ping VPN addresses (only VPN is affected). Have you tried to disable PPTP windowing in mpd config? ENOBUFS is the errno used by ng_pptp node's windowing code when outgoing window is full. It is not related to any system tunables. Maximum window size in current ng_pptp is 16 packets. It can be small for LFNs and can reduce speed. > I guess I should tune some kernel tunable, but what specific one? I can recomend you to set net.graph.maxdgram=524288 net.graph.recvspace=524288 to make 'ngctl list' command work, but it is not critical. -- Alexander Motin mav@alkar.net Optima Telecom
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