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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.ysu.edu!news.cps.udayton.edu!news.conterra.com!newsfeed.internetmci.com!newsfeed.internetmci.com!usenet.eel.ufl.edu!arclight.uoregon.edu!dispatch.news.demon.net!demon!awfulhak.demon.co.uk!awfulhak.demon.co.uk!awfulhak.demon.co.uk!not-for-mail From: brian@awfulhak.demon.co.uk (Brian Somers) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: User PPP connection is s......l......o.......w......! Date: 11 Jul 1996 01:00:49 +0100 Organization: Coverform Ltd. Lines: 25 Message-ID: <4s1g7h$fr@anorak.coverform.lan> References: <01bb6e37.014cfd20$38673fcb@simonh.addease.com.au> NNTP-Posting-Host: localhost.coverform.lan X-NNTP-Posting-Host: awfulhak.demon.co.uk X-Newsreader: TIN [version 1.2 PL2] Simon Harris (simon@addease.com.au) wrote: : I have successfully connected to my ISP using user PPP but have found it : to be very slow in comparison to using PPP under Windows 95. This seems : odd. In fact I would have expected the reverse to be true. : Anyone got any ideas? Information I have but I don't really know whats : relevant. Have you got a good DTR speed ? It should ideally be about 4 times your modem speed - ie 115200 for a 28800 modem, 57600 for a 14400. If this is too slow, you modem will overload the UART and you'll lose characters. Once this starts, you're in trouble. You end up re-transmitting half the stuff, lose half of that....... Another good reason is if you have a crappy IDE disk that likes interrupting all the time. Because the IRQ is on the second PIC, it's *probably* at a higher priority than your UART (disk = 2, UART = 3/4). Once you start ftp'ing something, you do disk writes and start to drop packets on the floor. The only way I know to circumvent this is to either buy a better drive (even a SCSI one...) or get your UART to interrupt on IRQ 2/9. -- Brian <brian@awfulhak.demon.co.uk> Don't _EVER_ lose your sense of humour....