Date: Wed, 29 Sep 1999 11:23:05 -0700 From: John-Mark Gurney <gurney_j@efn.org> To: Mark Tinguely <tinguely@plains.NoDak.edu> Cc: hackers@FreeBSD.ORG Subject: Re: The sppp driver Message-ID: <19990929112305.10957@hydrogen.fircrest.net> In-Reply-To: <199909291509.KAA14058@plains.NoDak.edu>; from Mark Tinguely on Wed, Sep 29, 1999 at 10:09:40AM -0500 References: <199909291509.KAA14058@plains.NoDak.edu>
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Mark Tinguely scribbled this message on Sep 29: > The sppp > is more efficient than ppp and pppd because it does not have to map > the packets from kernel space to user space and then back again, plus the > advatages not having to service interrupts on each character, the > synchronous link does not need to map Asynchronous-Control-Character-Map > characters and Frame Check Sums. pppd only map packets from kernel space to user space when they are control packets... all data packets get passed directly from the ppp tty driver to the network layer.... so, pppd may not be as efficient as sppp, but the parts that matter (data latency) is just as efficient... -- John-Mark Gurney Voice: +1 408 975 9651 Cu Networking "The soul contains in itself the event that shall presently befall it. The event is only the actualizing of its thought." -- Ralph Waldo Emerson To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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