4P13
Lab 3

Objective

Introduction to dtrace.

Lab Component

"dtrace" is a kernel tracing program which allows the user to see what syscalls a process is making to the kernel. "dtrace" must be run as root. If your gnome desktop is not root you will need to open and xterm and login as root, i.e. su. If you are unable to su, then you will need to add your username to group wheel.Go to the link https://wiki.freebsd.org/DTrace/Tutorial. Spend time and go through the "DTrace One-Liner Tutorial". Type in each example and view the resulting output.

Reward Requirements

For each example (lesson) above, capture the output, and place it into a file.
Write a short description of what you have done and learned in each of the lessons. It should look something like this.

Lesson 1:

        Command "dtrace -l | grep "syscall.*read"

Output:
        listing or partial listing of the output.

What I have learned
        List the significance of the lesson in terms of what you have learned. The description within the lesson may mirror what you put here. I'm looking for "your own words" and thoughts about the learning outcome of the lesson. Expand on the details of what has been learnt.

In addition, run at least 1 example from the list at the bottom of the page, and give a similar writeup as above.
Print it and hand it in the following week.
Instructor will grade your lab and assign a mark based on how thorough he perceives that you have understood the material.

4P13 Lab 3

Objective

Lab Component

Reward Requirements

4P13
Lab 3