Article View: borland.public.cppbuilder.nativeapi
Article #16174Re: Com Port Performance Difference
From: ibrahim canpunar
Date: Thu, 29 May 2003 15:52
Date: Thu, 29 May 2003 15:52
39 lines
2423 bytes
2423 bytes
Thanks, we found the reason of the problem (They were all the same) that caused by the electrical noise on the line. ibrahim "Stephan" <slaska@devarinc.com> wrote in message news:3ed5eb7f$1@newsgroups.borland.com... > Hi, > I can offer another area to investigate. Take a look at what your system > IRQs are doing. For instance, if COM1 on IRQ4, and COM2 on IRQ3, > but also a modem or something else on IRQ3, this can cause some of your > delay as the system sorts through which device caused the interrupt. > This information should be available in the control panel/system. > > > You _should_ expect different delays between different brands of systems > because part of the delay is due to the BIOS and hardware, and each > system is designed differently. > > Have Fun > Stephan > > "ibrahim canpunar" <ibrahim.canpunar@bilten.metu.edu.tr> wrote in message > news:3ed5bcf2@newsgroups.borland.com... > Hi All, > I have a W2K application that communicates on Com Ports > if I run the application on Com1, response takes 3ms and > Com2 performance is 18ms. > On another W2K both Com1 &Com2 performance are 10ms. > I couldn't find what the reason. > How would I get the same performance for all ports and PC's (e.g. 3ms) > Thanks In Advance. > > ๏ฟฝbrahim Canpunar > > > >
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X-Google-Language: ENGLISH,ASCII X-Google-Thread: 10cc67,7e0d4dde54ba1d4f X-Google-Attributes: gid10cc67,public X-Google-ArrivalTime: 2003-05-29 08:52:31 PST From: "ibrahim canpunar" <ibrahim.canpunar@bilten.metu.edu.tr> Newsgroups: borland.public.cppbuilder.nativeapi References: <3ed5bcf2@newsgroups.borland.com> <3ed5eb7f$1@newsgroups.borland.com> Subject: Re: Com Port Performance Difference Date: Thu, 29 May 2003 18:52:05 +0300 Lines: 41 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 NNTP-Posting-Host: 144.122.246.175 Message-ID: <3ed62c01@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1054223361 144.122.246.175 (29 May 2003 08:49:21 -0700) Path: arc1-ca.pugleaf.net!archiver1.google.com!news1.google.com!sn-xit-02!sn-xit-04!sn-xit-01!sn-xit-08!supernews.com!newsfeed1.earthlink.net!newsfeed.earthlink.net!sjc70.webusenet.com!news.webusenet.com!cyclone.bc.net!news-hog.berkeley.edu!ucberkeley!nntp-relay.ihug.net!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail