Blog
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This is a continuation of me attempting to answer the midterm questions without peeking at the answers. Part 1 covered questions from OS Structures and this post (part 2) covers virtualization and includes questions revolving around memory management in hypervisors and how to test-and-set atomic operations work. A few useful links I found while trying…
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Thanks to my wife for encouraging me to pull the trigger and start my online study group (i.e. the “war room”) for my advanced operating systems course. Basically, the idea came about after chatting with a class mate of mine and during our video call, I realized how many of us are basically studying alone…
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As mentioned in my recent post on taking a multi pass approach for midterm preparation, I’m taking a stab at answering the midterm questions myself and below are my unfiltered attempts followed by the correct answer that I pulled from the answer key. OS Structures Question 1a Protection domains allow providing independence, integrity, and isolation…
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Before stepping into parenthood, my wife and I would often read about other couples scheduling time for being “intimate” (aka sex), time alone just for the two parents. Without this deliberate effort, parents can fall into the trap of focusing 100% of their time on raising their children and forgetting what its like to be…
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According to the omscentral reviews for the advanced operating systems course, the midterm exams are nearly identical to the previous semester’s exams and former students strongly suggest rote memorization as a the primary study method. In my opinion, these types of tests do not really serve as a great litmus test for evaluating a student’s…
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If you are an online masters of computer science student (OMSCS) at Georgia Tech and enrolled in advanced operating systems (AOS) course, you might want to check out the notes I’ve taken for the lectures by clicking on the advanced operating systems category on my blog. For each video lecture, I’ve written down a summary…
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Being fully present as a parent all the time seems like an impossible feat. Although I’d like to think that I’m always present with my daughter, I do find myself sometimes mentally checking out. For example, yesterday, Jess had reminded me during lunch I should be in the here and now instead of scrolling on…
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The key take away for scheduling is that as OS designers you want to follow this mantra: “keep the caches warm“. Following this principle will ensure that the scheduler performs well. There are many different scheduling algorithms including first come first serve (FCFS), fixed processor (focus on fairness), fixed processor (thread runs on the same…
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I’m (re) learning how to doodle! I’d like to incorporate art and sprinkle sketches into notes that I scribble down while studying for graduate school. Also, I just miss drawing, an activity I used to do a lot as little boy. But somewhere between then and becoming an adult I’ve lost my way, losing touch with…
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Remote procedure call (RPC) is a framework offered within operating systems (OS) to develop client/server systems and they promote good software engineering practices and promote logical protection domains . But without careful consideration, RPC calls (unlike simple procedure calls) can be cost prohibitive in terms over overhead incurred when marshaling data from client to server…
