Blog

  • 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…

    Daily Review – Day ending in 2020/09/10
  • The operating system maintains a per process data structure called a page table, creating a protection domain and hardware address space: another virtualization technique. This page table maps the virtual address space to physical frame number (PFN). The same virtualization technique is adopted by hypervisors (e.g. VMWare). They too have the responsibility of mapping the…

    Memory Virtualization (notes)
  • 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…

    Daily Review – Day ending in 2020/09/09
  • Below are some memory management research papers that my classmate shared with the rest of us on Piazza1. Quickly scanning over the papers, I think the material will point me in the right direction and will paint a clearer picture of how I might want to approach writing my memory coordinator. I do wonder if…

    Papers to read for designing and writing up the C memory coordinator
  • Up to ‘nr_stats’ elements of ‘stats’ will be populated with memory statistics from the domain. Only statistics supported by the domain, the driver, and this version of libvirt will be returned. What does the above API description even mean by nr_stats? How do you determine the number of elements that need to be populated? For…

    How to obtain the length of the memory statistics array when calling virDomainMemoryStats
  • 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…

    Daily Review – Day ending in 2020/09/08
  • Now that I finished writing the vCPU scheduler for project 1, I’m moving on to the second part of the project called the “memory coordinator” and here I’m posting a similar blog post to a snapshot of my understanding of project 1 , the motivation being that I take for granted what I learned throughout…

    A snapshot of my understanding before tackling the memory coordinator
  • During some down time this evening, I watched the below YouTube video clip filmed and produced by Veritasium and I absolutely loved hearing about his journey, especially about how becoming a father has fundamentally changed the way he views his time. Because I’m in a similar boat: My life looks nothing like it did a…

    Quotes from “My life story” by Veritasium
  • As system designers, our goal is to design a “black box” system that create an illusion that our users have full and independent access to the underlying hardware of the system. This is merely an abstraction since we are building multi-tenant systems with many applications and many virtual guest machines running on a single piece…

    Introduction to virtualization (notes)
  • 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…

    Daily Review – Day ending in 2020/09/07