Article View: borland.public.cppbuilder.nativeapi
Article #2198Re: Slow Read From Serial Port
From: Bob Gonder
Date: Wed, 21 Mar 2007 16:57
Date: Wed, 21 Mar 2007 16:57
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1979 bytes
Phil wrote: >Just to follow up, Oliver and Stephan were right on with the latency issue. Ok, so you can try 2 things: 1) Increase your speed to the modem. Something above 56k (such as 96k) should help some. (The modem can't start sending until the entire first byte has arrived) 2) If your modem has such a command, turn off data compression, and/or packets. If you have 56k modems at both ends, running at 56k between them, the data will spend less time on the wires. It should be able to step down (buffer) to your device on the far end. But that data will still come back to you slowly (19k) but should be less latency (less wire time). It's a relay race, and it's bad enough that you have one slowpoke at the far end. Hobling any of the other team members is only going to make it worse. Having the other 3 members be as fast as they can, can only make up so much time.
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X-Google-Thread: 10cc67,d1cd2b38aa5bb326 X-Google-Attributes: gid10cc67,public X-Google-Language: ENGLISH,ASCII-7-bit From: Bob Gonder <notbg@notmindspring.invalid> Newsgroups: borland.public.cppbuilder.nativeapi Subject: Re: Slow Read From Serial Port Date: Wed, 21 Mar 2007 09:57:31 -0700 Organization: MindSpring Enterprises, Inc. Reply-To: notbg@notmindspring.invalid Message-ID: <0mn203pokf8b5sqqg3nlm2eo4fvnhihoo9@4ax.com> References: <46002b03$1@newsgroups.borland.com> <4600f62f$1@newsgroups.borland.com> <4601263e$1@newsgroups.borland.com> <460140b0$1@newsgroups.borland.com> X-Newsreader: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Host: 67.77.145.18 X-Trace: newsgroups.borland.com 1174496249 67.77.145.18 (21 Mar 2007 09:57:29 -0800) Lines: 24 Path: arc1-ca.pugleaf.net!g2news1.google.com!news4.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!newsfeed00.sul.t-online.de!newsfeed01.sul.t-online.de!t-online.de!newsgroups.borland.com!not-for-mail