JORDAN@gmr.COM (08/21/90)
Fellow netters: I was using the setitimer(ITIMER_REAL, &itime, &oitime) command to signal the interrupt SIGALRM. Alarming results... I set itime.it_value.tv_usec = 30000 (or 30 msec); result, 33 hz (okay) I set itime.it_value.tv_usec = 20000 ; result, 33 hz (WHOOPS!) should be 50 hz. I ran this with graphics, but I jumped around all the graphics routines in the loop. The Question... Is something else out there setting the SIGALRM such as UNIX or IRIX OR swapinterval()? Meanwhile... I have hacked a fix using times() where I simply check the time at the end of the loop. ted p mugabi-jordan gm systems engr ctr 1151 crooks road troy, michigan 48084 313 280 6766