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Petros Kalogiannakis kalpetros

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@rondy
rondy / Effective_Engineer.md
Last active March 16, 2026 13:08

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

Effective Engineer - Notes

What's an Effective Engineer?

@vasanthk
vasanthk / System Design.md
Last active March 20, 2026 17:25
System Design Cheatsheet

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

  1. Clarify and agree on the scope of the system
  • User cases (description of sequences of events that, taken together, lead to a system doing something useful)
    • Who is going to use it?
    • How are they going to use it?
@bag-man
bag-man / cpu.js
Last active October 28, 2024 22:02
How to calculate the current CPU load with Node.js; without using any external modules or OS specific calls.
var os = require("os");
//Create function to get CPU information
function cpuAverage() {
//Initialise sum of idle and time of cores and fetch CPU info
var totalIdle = 0, totalTick = 0;
var cpus = os.cpus();
//Loop through CPU cores