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@raymyers
raymyers / trimmedMean.js
Created February 14, 2020 16:15
Trimmed Mean and Median in ES6.
const mean = (values) => {
let sum = values.reduce((previous, current) => current += previous);
return sum / values.length;
};
const median = (arr) => {
const mid = Math.floor(arr.length / 2);
const sorted = [...arr].sort((a, b) => a - b);
return arr.length % 2 == 0 ? (sorted[mid - 1] + sorted[mid]) / 2 : sorted[mid];
};
@martinruenz
martinruenz / ffmpeg-snippets.md
Last active November 15, 2022 06:39
ffmpeg snippets / cheatsheet
@Pulimet
Pulimet / AdbCommands
Last active April 23, 2024 08:28
Adb useful commands list
adb help // List all comands
== Adb Server
adb kill-server
adb start-server
== Adb Reboot
adb reboot
adb reboot recovery
adb reboot-bootloader
@krisselden
krisselden / trace-to-mp4.js
Last active July 4, 2022 23:26
Make an mp4 out of a Chrome DevTools trace with screenshots.
const fs = require('fs');
const path = require('path');
const spawn = require('child_process').spawn;
const FPS = 60;
const MICROSEC_PER_FRAME = Math.round(1000000 / FPS);
if (process.argv.length < 3) {
console.log(`node ${path.relative('.', process.argv[1])} [DevToolsProfile]`);
process.exit(1);
}
let traceFile = path.resolve(process.argv[2]);
@afolarin
afolarin / resource_alloc_docker.md
Last active March 18, 2024 17:01
Resource Allocation in Docker

#Container Resource Allocation Options in docker-run

now see: https://docs.docker.com/engine/reference/run/#runtime-constraints-on-resources

You have various options for controlling resources (cpu, memory, disk) in docker. These are principally via the docker-run command options.

##Dynamic CPU Allocation -c, --cpu-shares=0
CPU shares (relative weight, specify some numeric value which is used to allocate relative cpu share)

@PaulKinlan
PaulKinlan / criticalcss-bookmarklet-devtool-snippet.js
Last active April 2, 2024 02:45
CriticalCSS Bookmarklet and Devtool Snippet.js
(function() {
var CSSCriticalPath = function(w, d, opts) {
var opt = opts || {};
var css = {};
var pushCSS = function(r) {
if(!!css[r.selectorText] === false) css[r.selectorText] = {};
var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/);
for(var i = 0; i < styles.length; i++) {
if(!!styles[i] === false) continue;
var pair = styles[i].split(": ");
@eqhmcow
eqhmcow / hfsc-shape.sh
Last active August 2, 2023 11:59
HFSC - linux traffic shaping's best kept secret
#!/bin/bash
# As the "bufferbloat" folks have recently re-discovered and/or more widely
# publicized, congestion avoidance algorithms (such as those found in TCP) do
# a great job of allowing network endpoints to negotiate transfer rates that
# maximize a link's bandwidth usage without unduly penalizing any particular
# stream. This allows bulk transfer streams to use the maximum available
# bandwidth without affecting the latency of non-bulk (e.g. interactive)
# streams.