David Castillo davcs86

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What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

Write Performance Benchmark

This document will allow anyone to verify the benchmark result of writing 2 - 3 million metrics per second into DalmatinerDB. This is a single node benchmark to keep things simple and easily comparable between time series databases that don't support clustering.

We will setup 2 Haggar servers to generate metrics and fire them at a single node DalmatinerDB server as per this diagram.

You can expect near linear performance results as a DalmatinerDB cluster is horizontally scaled.

	<!DOCTYPE html>

	<html>
	<head>
	<title>MemeMaker-Simple</title>

	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
	<meta name="mobile-web-app-capable" content="yes">
	<meta name="apple-mobile-web-app-capable" content="yes">
	<style>

	// somewhere on top
	import _ from 'lodash';
	jest.unmock('lodash');

	// then
	_.debounce = jest.fn((fn) => fn);

	/** MathBox type declarations (autogenerated) */

	/** Matrix width */
	declare interface MBArea {
	/** Use (fast) integer lookups */
	aligned?: boolean;
	/** Axis pair */
	axes?: number[];
	/** Matrix buffer height */
	bufferHeight?: number;

	#!/usr/bin/env python3

	from http.server import BaseHTTPRequestHandler, HTTPServer

	class S(BaseHTTPRequestHandler):
	def _set_headers(self):
	self.send_response(200)
	self.send_header('Content-type', 'text/html')
	self.end_headers()