Re: Help in emulating an Informix form

In article <47e90k$5kb@charm.magnus.acs.ohio-state.edu>, apatanka@magnus.acs.ohio-state.edu (Atul Patankar) writes: >The problem the users face is the "TYPE AHEAD" phenomenon, that we suspect is >caused by the following: Since the application uses attributes such as >"UPPERCASE", each character the user types has to travel all the way to the >application server, get processed and then sent back to the terminal to be >echoed. The local echo is turned off. Over a WAN, this traffic results in a >> 10 character "type ahead" at times. This bothers the users since the next >field they go to depends on the input to the previous field, so they have to >wait for the screen to catch up. The server is not stressed out at those >times. >There is no runaway process hogging resources. So we think its the traffic. > >We would like to see if we could write this one form on our own. That way we >can use local echo and perhaps reduce some traffic on the WAN. Informix >does not provide any libraries that help in this matter. I was hoping that >someone out there might have run into this problem and might want to share >some thoughts on the solution. No matter what, typed characters will still have to go all the way to the server and back. I am not certain, but I suspect that the upshifting being done by Informix is not causing the majority of your delay. With 100 users, you may want to focus your efforts on improving the I/O throughput of your system. You may want to increase the baud rate of the terminals, or modify some of the Unix system parameters (CLIST, etc) to help. This may be an easier solution that writing your own front end. Just my thoughts on your post. Regards, Mike