CS 0449 – pthreads Lab

Make a program with two threads. Note: Remember to compile your program with the

-pthread option.

In the first thread, make an infinite loop that does:

printf(“Hello from thread 1 - A\n”);

printf(“Hello from thread 1 - B\n”);

In the second thread, have an infinite loop that does:

printf(“Hello from thread 2 - A\n”);

printf(“Hello from thread 2 - B\n”);

Run the program, and eventually stop it with CTRL+C. The time between thread switches is called a quantum.  

1.) Does the quantum seem long or short?

2.) What happens if you insert a pthread_yield() into each loop between the two printf calls?