I have a parallel program, which calls some message passing functions which block. Then I attempted to use times() (with struct tms) to time the program. the struct tms gives me the "program time" and the "system time" as well as the child process time (if any). However does it also include the time spent when my program is blocked (i.e. network time). This is important because although I use gprof to separate the CPU time spent by my program vs libraries, when I calculate the total time spent, I really need to include the time spent waiting for message from network (network time). Therefore is times() really appropriate for my purpose? If not, what other functions can I use instead? (such as gettimeofday?) Thanks! Mark - To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html