gregb@dowjone.UUCP (Greg_Baber) (11/10/88)
Hello, I'm running SCO Xenix 2.3.1 on a AST Premium 386. I have installed an Intelliport AT-16 sixteen port I/O card. I'd like to be able to do some timing of the I/O routines. That is, how long does it take for a byte to go from the card input to a program running in memory? I assume that I'll be running a minimal system (all extra gettys turned off, etc.) so that OS overhead is reduced. I'm concerned about how long the character spends in the driver code. If the delay in the driver is long, throughput may be high, but the delay time could be prohibitive for my use. Any ideas??? gregb -- Reply to: Gregory S. Baber Voice: (609) 520-5077 Dow Jones & Co., Inc. E-mail: ..princeton!dowjone!gregb Box 300 or ..uunet!dowjone!gregb Princeton, New Jersey 08543-0300