Date: Tue, 10 Jan 1995 17:41:35 -0500 From: Garrett Wollman <wollman@halloran-eldar.lcs.mit.edu> To: Heikki Suonsivu <hsu@cs.hut.fi> Cc: freebsd-hackers@freefall.cdrom.com Subject: FreeBSD as an IP Router Message-ID: <9501102241.AA13433@halloran-eldar.lcs.mit.edu> In-Reply-To: <199501102038.AA07702@laphroaig.cs.hut.fi> References: <199501102038.AA07702@laphroaig.cs.hut.fi>
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<<On Tue, 10 Jan 1995 22:38:27 +0200, Heikki Suonsivu <hsu@cs.hut.fi> said: > At least on FreeBSD 1.1.5.1 it doesn't seem to be the CPU speed which sets > the limit. For some reason, it can only forward packets at half of the > speed which it can pump out of its interfaces. The speed limit for ISA network interfaces is the ISA bus speed. You are actually CPU limited, but because the CPU has to reach out over the ISA bus to pull data off the interface, it takes much longer than would a memory access to data in system RAM. -GAWollman -- Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. Opinions not those of| It is a bond more powerful than absence. We like people MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant
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