Category: Daily Reviews
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Daily Review – Day ending in 2020/09/24
Today I’m posting a super short daily review given that the midterm (for advanced operating systems) opens up in about 13 hours. Writing Published on drifting apart (as part of my daily review) Published my first set of guesses to the mid term questions Parenting and family matters Held Elliott in my arms while we…
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On building online learning communities & Daily Review – Day ending in 2020/09/23
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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On drifting apart & Daily Review – Day ending in 2020/09/22
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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Being present in the moment & Daily Review – Day ending in 2020/09/21
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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(Re) learning how to doodle & Daily Review – Day ending in 2020/09/20
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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Finally clean air & Daily Review – Day ending in 2020/09/18
Hooray! Today is the first day in a couple weeks that air quality is considered good, at least according to the EPA. I’m so pleased and so grateful for clean air because my wife and daughter have not left the house since the wild fires started a week ago (or was it two weeks —…
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On letting go & Daily Review – Day ending in 2020/09/17
With working remote and establishing a (somewhat) daily routine (that has become pretty monotonous), it’s sometimes easy to forget that we’re in the midst of a global pandemic. But that reality is amplified because of the recent wild fires, forcing those of us living in the pacific north west (PNW) — and those living in…
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Crashing and burning during lunch & Daily Review – Day ending in 2020/09/16
I had mentioned yesterday that I slept horribly, waking up early and starting day off at around 03:45 AM. That wake up time was brutal and as a result, I crashed and burned in the afternoon, leveraging those precious 30 minutes of my lunch to nap in my wife’s / daughter’s bedroom (a room with…
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Tired like a zombie & Daily Review – Day ending in 2020/09/15
Today is going to be rough. I slept horribly, waking up multiple times throughout the night. Ultimately, I rolled out of my tri-folding foam mattress (a temporary bed while my daughter and wife sleep on the mattress in a separate room as to not wake me up: that parent life) at 03:45 AM this morning.…
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Honoring my body’s internal alarm clock & Daily Review – Day ending in 2020/09/14
This morning my body woke me up later than usual. After a few blinks, I squeezed the corner of my Casio G-Shock watch, the green background lighting up and shining the time: 05:55 AM. Ugh. About an hour later than I wanted to wake up. On one hand, I’m bummed because I won’t be able…
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Remembering September 11 & Daily Review (day ending on 09/11/2020)
Yesterday was September 11. On this day, every year, Americans grieve and we are all reminded of the unforgettable day back in 2001 when the New York twin towers collapsed to the ground after being struck by the hijacked planes. I sure remember the day. I was about 12 years old at the time and…
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Daily Review – Day ending in 2020/09/10
We often talk about work life balance, separating the two major parts of our lives. On some level, I agree with the philosophy, believe that work is work and life is life. But at least for me, what happens at work bleeds into my personal life, and vice versa. When I have a shitty day…
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Daily Review – Day ending in 2020/09/09
After freeing a spider into the front yard, I noticed that the coffee mug (in which I trapped the spider in) was decorated with a beautiful web that the spider must’ve spun overnight. Almost every other day, I spot a spider dancing across the white walls of my bedroom. Instead of squishing them to death…
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Daily Review – Day ending in 2020/09/08
The most interesting side effect of writing these daily reviews is that they stir up meaningful conversations with my wife. Apparently, much of what words I set on paper never make their way out of my mouth (despite thinking that I did verbally share them). Surely this situation of my brain tricking me into thinking…
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Daily Review – Day ending in 2020/09/07
Yesterday Writing Blogged and published an entry describing my naive scheduler for project 1 Emotions I disassociated and my mind wandered into its “own world” after my wife Jess asked me to watch Elliott later that afternoon. I think part of the reason why I got so worked up had less to do with her…
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Daily Review – Day ending in 2020/09/04
Yesterday Writing Blogged and published an entry for my daily review Blogged and published an entry explaining the libvrt’s bit map data structures that map virtual CPUs to physical CPUs Music Noodled around on the guitar, playing chords in a minor key up the neck (need to start structuring and mixing up my practice sessions…
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Daily Review – Day ending in 2020/09/03
Writing Blogged and published an entry for my daily review Blogged and published an entry on L3 Microkernel Mental and Physical Health At the park, ran around in circles while holding Elliott in my arms … that sort of counts as exercise, right? Music Nothing at all Graduate School Migrated from my Virtualbox environment to…
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Daily Review – Day ending in 2020/09/02
Writing Blogged and published an entry for my daily review Blogged and published an entry that shows the steps for building librty’s documentation from source code (since the manual no longer exists on the official website) Mental and Physical Health Met with my therapist, who I see every week (except last week since I had…
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Daily Review – Day ending in 2020/09/01
Yesterday Writing Blogged and published an entry for my daily review Blogged and published an entry that snapshots my understanding before starting on project 1 of advanced operating systems: writing a scheduler and writing a memory coordinator Music E-mailed the singing instructor that I’ve been seeing for the last couple years, informing her that lately…
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Daily Review – Day ending in 2020/08/31
Yesterday Most interesting part of yesterday was a 1 on 1 video Chime chat that my co-worker scheduled with me. What started off with me stepping through our code base (for a set of features I added to the dataplane) morphed into a lengthy discussion around mental health and burning out and the idea of…
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Advanced Operating Systems – OS Structure – Exokernel
Unlike the SPIN OS Structure, exokernel approaches extensibility by decoupling the authorization to hardware from its actual use, by using something called secure bindings. OS libraries will request secure bindings, the Exokernel returning an encrypted key that grants that particular service to specific resources. One other way that the exokernel manages these underlying OS services…
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Daily Review – Day ending in 2020/08/30
Yesterday Writing Wrote and published an article on Time Management Tip #1: Pomodoro Technique. How I use the technique and how I’ve adjusted it to fit my needs. Music Had my bi-weekly virtual guitar lesson with Jared. This was the first lesson back, after he took a 1.5 month sabbatical, a vacation he deserves and…
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OS Structure Overview
In the context of an operating system, what does structure even mean and why is it important? Structure determines how the operating system serves application in regards to the underlying hardware and how it balances the following qualities: protection, performance, flexibility, scalability, agility, and responsiveness. To obtain the above qualities, several designs exist including monolithic…
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Advanced Operating System Notes (File Systems)
Although I’ve covered file systems in previous courses, including graduate introduction of operating systems, I really enjoy learning more about this concept in a little depth. The file system’s module is packed with great material, the material introducing a high level introduction of file system and then jumps into the deep end unveils what an…