Hi, I still work on trying to get RTLinux capture a 500KBd stream through a serial interface. What I noticed now is that reading from real-time fifos in the application is apparently very slow. When I get approx. 25,000 chars per second, my program uses up 20% of the CPU time (on a Pentium 166). If I do the same using ordinary Linux, it is less than 1%. Any idea? -- Bernhard --- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] ---- For more information on Real-Time Linux see: http://www.rtlinux.org/~rtlinux/