Re: What counts as technically slick?

Albert

> Years ago I was called in to work on a new application that was having
> severe performance problems. The designers had come up with a great way
> (they thought) to control file access. For each file, they wrote a "server"
> program. The application programs accessed the file only through these
> server programs. Files were not opened directly, all reads, writes, and
> updates were done through these calls. Naturally this caused a performance
> hit by itself  But on top of that, for some reason, they coded all of these
> server programs to set on LR before returning. We gained big boost simply by
> removing that one line from each program. Then, as the application was
> maintained, we got rid of the server programs and brought the files back
> into the program.

Getting rid of LR was obviously a good idea, but I cannot see a reason for
getting rid of the "server " programs.  I separated my User Interface logic from
database logic many years ago and got average response times on a B10 of about
0.3 - 0.4 seconds.  This was far better than most people expected on a B10.  I
don't believe that there was a significant performance hit. If you have more 
than
one program that calls each of the server programs, and you have had to modify
each of those, you surely have much more code to maintain as a result.

Best wishes

Rob
________________________________________________________

Erros plc

44 (0) 1844 239 339

http://www.erros.co.uk - The AS/400 Neural Database for the Internet

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