Date: Fri, 11 Jul 1997 17:40:50 +0930 (CST) From: Michael Smith <msmith@atrad.adelaide.edu.au> To: bde@zeta.org.au (Bruce Evans) Cc: hackers@FreeBSD.ORG, mcgovern@spoon.beta.com Subject: Re: Trigger for received PPP packets? Message-ID: <199707110810.RAA23301@genesis.atrad.adelaide.edu.au> In-Reply-To: <199707110347.NAA32223@godzilla.zeta.org.au> from Bruce Evans at "Jul 11, 97 01:47:08 pm"
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Bruce Evans stands accused of saying: > > >that I'm seeing is that a received packet is taking quite a long time > >(roughly 100 - 150ms) to get processed. A ping, for instance, on a 115200 > >serial link, takes about 347-380ms round trip. > > Apparently the driver is not delivering characters to ppp promptly. I > guess it uses huge buffers and doesn't get interrupted for packet framing > characters. Just to clarify for Brian; this is what the 'hotchar' stuff in the sio driver is all about. -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[
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