Understanding and Visualizing Covid Growth in the US
This post takes a look at Covid data with a particular focus on the number of new daily cases and the growth (or
Many But Finite
Tech and science for curious people.
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Covid-19 Data Sources for Programmers
I’ve been doing analysis of Covid cases to try to understand what to expect in terms of lockdown length and dise
iPhones, Armed Robbery, and Hacking
(Some security recommendations are summarized at the end .) <h3 id="I-The-Robb
Goto and the folly of dogma
Many programmers are surprised to find out that the goto statement is still widely used in modern,
Grokbit
TLDR: I launched Grokbit , a code search and brow
Home Row Computing on Macs
For a number of years I’ve configured my desktops so that most tasks can be done using only home row keys on the
System Calls Make the World Go Round
I hate to break it to you, but a user application is a helpless brain in a vat: <img id="appInVat" class="ce
What does an idle CPU do?
In the last post I said the fundamental axiom of OS behavior is that <
When Does Your OS Run?
Here’s a question: in the time it takes you to read this sentence, has your OS been running ? Or was it
Closures, Objects, and the Fauna of the Heap
The last post in this series looks at closures, objects, and other creatures roaming beyond the stack. Much of w
Tail Calls, Optimization, and ES6
In this penultimate post about the stack, we take a quick look at tail calls , compiler optimiza
Recursion: dream within a dream
Recursion is magic, but it suffers from the most awkward introduction in programming books. Th
Epilogues, Canaries, and Buffer Overflows
Last week we looked at how the stack works
Journey to the Stack, Part I
Earlier we’ve explored the <a href="/post/anatomy-of-a-program-in-memory" title="Anatomy of a Program in Memory"
Page Cache, the Affair Between Memory and Files
Previously we looked at how the kernel manages virtual memory
The Thing King
I hope the previous post explained virtual memory adequat
How The Kernel Manages Your Memory
After examining the virtual address layout of a process, we t
Anatomy of a Program in Memory
Memory management is the heart of operating systems; it is crucial for both programming and system administratio
Getting Physical With Memory
When trying to understand complex systems, you can often learn a lot by stripping away abstractions and looking
Cache: a place for concealment and safekeeping
This post shows briefly how CPU caches are organized in modern Intel processors. Cache discussions often lack co