Re: [Freedos-user] Terribly slow versus RS232 interrupts
@Rugxulo "You said JEMMEX was used. (But you can probably do without NOINVLPG NOVME unless literally using an old 386.) Are you sure you need EMM386 (or EMS) at all?" - This was a good question... Obviously my thinking was stucked on something I believed to be true on -90:eens when I last used MSDOS. I have now studied my literature about MSDOS and AutoCAD. It seems that AutoCAD was one of those very rare DOS programs that took care of their "extra" memory use by themselves (also Framework was mentioned). In one book they state that if there is expanded or extended memory available AutoCAD uses it automatically (up to 4MB). If there are available both, AutoCAD uses expanded memory first. And further, user can control these by DOS command and . That book covers versions up to Rel.10 and it was little unclear if this applies to Rel.9 but I think it does. - I have also tested now without any extra DOS drivers and indeed tablet doesn't affect program execution speed any more. Also, display REGEN is quite fast now. It is not "lightning fast" that I may have expected of Pentium CPU but better than I ever seen. In general level... it does not restrict actual working practically at all. So problem solved.. on practical level... thank you Rugxulo, Eric Auer et. others interested. - Of course it would be interesting to know why did AutoCAD behave this way. Being closed source it may never reveal its secrets? As far as I can remember on those days of MSDOS era special DOS drivers for memory extention were used allmost without exception. For some reason they didn't disturb AutoCAD (obviously didn't make any use either). - Strange enough, printer plotting is still (quite) slow. (=vector prosessing) Different is now that tablet doesn't affect it either. Plotting is not needed so often and as my interact is not needed any more so problem is marginal. I can go for a cup of coffee that waiting time... But again, it would be nice to understand. Rauno Ollila P.S. I searched my tablet manual for its communication interface settings. Those DIP-switches were set to meet AutoCAD recommendation. It means new X/Y-position data send for every 0.01" pointer movement, however 100 points/s max. limit. In my understanding each coordinate generates several RS232 bytes. (>interrupts ?) This mail sent through L-secure: http://www.l-secure.net/ -- HPCC Systems Open Source Big Data Platform from LexisNexis Risk Solutions Find What Matters Most in Your Big Data with HPCC Systems Open Source. Fast. Scalable. Simple. Ideal for Dirty Data. Leverages Graph Analysis for Fast Processing & Easy Data Exploration http://p.sf.net/sfu/hpccsystems ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
I might have descriped the main problem unclearly... So, when in Autocad drawing editor, most commands are responded quickly enough. But in drawing regeneration (object vector rendering, (floating point)) the behaviour is distinctive. If left alone this work progresses but is so slow that it is almost possible to see objects to appear on screen. Then, if I set pointer on digitizer tablet and move it there the rendering accelerates in responce to pointer tip speed up to some cm/s. It seems like certain amount of CPU prosessing per tip movement. I do not know exacly the tablet communication protocol to computer RS232 port. I try to find and come back to this if I find something usefull. Rauno Ollila This mail sent through L-secure: http://www.l-secure.net/ -- Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
Lainaus Christopher Evans : * A mis-set or conflicting interrupt. Are you sharing modem and soundcard * irqs? * -chris - There is no modem in this computer (separate radio-modem in router connected by ethernet cable. This far I have used internet connection in Slitaz only in this machine) - I tested disabling soundcard and LAN adapter in BIOS set-up. Didn't help. - For serial port there are choises , , . It is now. I not sure what that means... auto speed detection...? - I have been searching BIOS settings now. There is hardly anything that refers to interrupts. Or, in general, anything I could imaging connection to this behaviour. Rauno Ollila This mail sent through L-secure: http://www.l-secure.net/ -- Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
Lainaus Eric Auer : * * Hi! You misunderstood me... USB is SLOWER than PS/2, so my * recommendation was to use PS/2 keyboard and mouse! But you * had those already. * * If you switch off legacy USB support in the BIOS, you must * use PS/2 keyboard for your BIOS setup again. Because, as * you noticed, USB keyboard will not work if you disable the * BIOS "legacy" USB driver. I hope that answers your question. * * Regards, Eric - I continued testing by disabling USB driver. As expected, mouse and keyboard "died". Then, entering GRUB OS-choice it continued to its default, Slitax, after its time-out and stopped to log-in to wait my responce. Then I connected PS/2 keyboard and mouse. They begun to work immediately, without (forced) reboot. - In Slitaz I commanded reboot to enter FreeDOS. Autocad worked like before, no progress, no harm either. As you assumed. USB drivers are now enabled again, just for case I need them. Rauno Ollila * * > * Maybe your BIOS is configured to support "legacy USB" methods * > * to let DOS access USB keyboard or mouse without USB drivers? * > * In that case, the BIOS can spend quite a lot of time to deal * > * with the USB controller. Try using USB keyboard and mouse. To * > * be on the safe side, leave the legacy USB support on anyway, * > * it will not waste much time if no devices are active and you * > * may need it to navigate the BIOS CMOS setup config dialog :-) * * > - My BIOS was configured to support "legacy USB"... So I tried to * > replace PS/2 keyboard and mouse with USB devices. It didn't help at * > AutoCAD drawing regeneration speed but * * > - You wrote that "the BIOS can spend a lot of time to deal with the * > USB controller". I understand this means dealing with USB devices * > that does'nt exist?. * * > - Legacy USB support was on at testing. If I try it off and end up * > into trouble with BIOS setup so I guess I can force POWER OFF on * > switch and then at next start PS/2 keyboard should work again..? This mail sent through L-secure: http://www.l-secure.net/ -- Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
@ Eric Auer : * Maybe your BIOS is configured to support "legacy USB" methods * to let DOS access USB keyboard or mouse without USB drivers? * In that case, the BIOS can spend quite a lot of time to deal * with the USB controller. Try using USB keyboard and mouse. To * be on the safe side, leave the legacy USB support on anyway, * it will not waste much time if no devices are active and you * may need it to navigate the BIOS CMOS setup config dialog :-) * == - My BIOS was configured to support "legacy USB"... So I tried to replace PS/2 keyboard and mouse with USB devices. It didn't help at AutoCAD drawing regeneration speed but - You wrote that "the BIOS can spend a lot of time to deal with the USB controller". I understand this means dealing with USB devices that does'nt exist?. - Legacy USB support was on at testing. If I try it off and end up into trouble with BIOS setup so I guess I can force POWER OFF on switch and then at next start PS/2 keyboard should work again..? Regards, Rauno Ollila This mail sent through L-secure: http://www.l-secure.net/ -- Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. Written by three acclaimed leaders in the field, this first edition is now available. Download your free book today! http://p.sf.net/sfu/NeoTech ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
one of most "CPU demanding" task so it is just obvious to show speed limitation first there. * > P.S. If any of you are interested my component library, please tell me. * > They are open source * * Anything that is free/libre (four freedoms) is interesting to FreeDOS * proper, at least as far as mirroring to iBiblio is concerned. Though * I'm confused, what does your component library do? Either way, it's * all the same to me. If you think others will find it useful, feel free * to contribute. - Maybe I should start a new thread to see if it is more FreeDOS/AutoCAD users out there. My component library is so PCB-design specific that I dont even know what is the best way to release it. They are software but not program code, tighly related to electronics hardware and also there is accomplished designs so category is very unclear. I'll come back to that. Rauno Ollila This mail sent through L-secure: http://www.l-secure.net/ -- Time is money. Stop wasting it! Get your web API in 5 minutes. www.restlet.com/download http://p.sf.net/sfu/restlet ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
Re: [Freedos-user] Terribly slow versus RS232 interrupts
Here is my FDCONFIG.SYS Now I realized I was using JEMMEX, not JEMM386... if that matters? Rauno Ollila !COUNTRY=001,858,C:\FDOS\BIN\COUNTRY.SYS !SET DOSDIR=C:\FDOS !LASTDRIVE=Z !BUFFERS=20 !FILES=40 !MENUCOLOR=7,0 MENUDEFAULT=1,5 MENU 1 - Load FreeDOS with JEMMEX, no EMS (most UMBs), max RAM free MENU 2 - Load FreeDOS with EMM386 (Expanded Memory) and SHARE loaded MENU 3 - Load FreeDOS including XMGR XMS-memory driver MENU 4 - Load FreeDOS without drivers 123?DOS=HIGH 12?DOS=UMB 12?DOSDATA=UMB 1?DEVICE=C:\FDOS\BIN\JEMMEX.EXE NOEMS X=TEST I=TEST NOVME NOINVLPG 2?DEVICE=C:\FDOS\BIN\HIMEMX.EXE 2?DEVICE=C:\FDOS\BIN\JEMM386.EXE X=TEST I=TEST I=B000-B7FF NOVME NOINVLPG 3?DEVICE=C:\FDOS\BIN\XMGR.SYS 3?SHELL=C:\FDOS\bin\4dos.com C:\FDOS\bin /E:1024 /P:C:\AUTOEXEC.BAT 4?SHELL=C:\FDOS\BIN\COMMAND.COM C:\FDOS\BIN /E:1024 /P=C:\AUTOEXEC.BAT 12?SHELLHIGH=C:\FDOS\BIN\COMMAND.COM C:\FDOS\BIN /E:1024 /P=C:\AUTOEXEC.BAT ** This mail sent through L-secure: http://www.l-secure.net/ -- Time is money. Stop wasting it! Get your web API in 5 minutes. www.restlet.com/download http://p.sf.net/sfu/restlet ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
[Freedos-user] Terribly slow versus RS232 interrupts
After a long pause (since late 90:eens) I started again with Autocad. R9 for DOS which I consider the best ever made in 2D/2.5D CAD. (that is mainly explained by excellent digitizer tablet use) Shortly... it works. JEMM386 was needed, without it Autocad was somewhat unreliable, it crashed often, no data loss thought. Most problems was solved, one by one, and the first PCB-layouts are now accomplished by using my component libraries, just to mention some. And yes, general CAD do have some advantages over dedicated PCB-CADs on limited designs. Some weird behaviour still causes troubles and I'll report them as my experience increases to better define these. For now I am searching a solution to strange speed dependency of serial port data flow. Responce to many commands are extremely slow unless I "refresh" the computer by RS232 output (input to computer) by rubbing the surfce of tablet with digitizer pen. Program acceleration is readily seen according to swipe velocity of pen. When sweeping the tablet surface it sends position data to serial port maybe max. some hundreds of points per second. Beyond certain speed the program does not accelerate any further, that may be limited by tablet. (Kurta IS/ONE). Even at its fastest the speed is still quite low to expectation of that of Pentium prosessor. Clearly slower of what it was at 90:eens when I used it by 33MHz 486 prosessor (on MS-DOS) In general it seems that those commands suffering of slow speed are mostly those related to display calculations (REGEN.. floating point, badly and REDRAW... integer, slightly) and also printing (print vector calculation, Autocad displays it progress, easy to observe) Thanks for your interest, Rauno Ollila, Kauhajoki P.S. If any of you are interested my component library, please tell me. They are open source This mail sent through L-secure: http://www.l-secure.net/ -- "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs ___ Freedos-user mailing list Freedos-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-user
