Hash tables are effective for caching, database joins, sets to check if something is in a list and even load balancing, partitioning and sharding and many other applications. Most programming languages support hash tables. However they don’t come without their cost and limitations lets discuss this.
0:00 Intro
1:50 Arrays
3:50 CPU Cost (NUMA/M1 Ultra)
6:50 H ... Show More
Nov 24
CPU and Kernel Page Faults
<p>Page faults occurs when the process tries to access a memory that isn’t backed by a physical page kernel raises a fault which loads a page. It happens on first access, stack expansion, COW, swap and much more. However it comes with a cost. </p><p><br /></p><p>In this episode o ... Show More
48m 37s
Jul 2020
Episode 21 - Maps, Hash Maps, Tree Maps, and Hash Tables
Today in less than 20 minutes, we'll explore what maps are and how they work under the hood. We'll talk about the differences between treemaps, hash maps, and hash tables. We'll dig pretty in-depth...By the end of the episode, you'll understand how to implement hash tables using ... Show More
16m 30s
Feb 2024
Episode 507: Stephen Margheim on SQLite in Ruby on Rails Applications
If you start a new Rails project today, you’re probably going to pick Postgres for your database. And if you have a ten year old Rails app, you might be using MySQL. But Rails ships with support for SQLite, a lightweight SQL database. Can that lightweight database be used to make ... Show More
31m 21s
May 2023
Blockchain Scalability w/ Cartesi
Omran is a tech-savvy with a background in software architecture for more than 15 years, having worked in big companies such as Google and Intel. Max, on the other hand, even without a tech background, has always been curious about innovation and technology, using business models ... Show More
1h 3m
Sep 2021
S17:E9 - What are some database architectures and their use cases (Kyle Bernhardy)
In this episode, we talk about database architectures and some of their use cases, with Kyle Bernhardy, CTO of HarperDB. Kyle talks about what a database is, different types of databases, and when you might want to use one type of database over another. Show Links DevDiscuss (spo ... Show More
48m 31s