jesstelford

Regular Event Loop

This shows the execution order given JavaScript's Call Stack, Event Loop, and any asynchronous APIs provided in the JS execution environment (in this example; Web APIs in a Browser environment)

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Given the code

jesstelford

Starving the Event Loop with microtasks

"What's the Event Loop?"

Sparked from this twitter conversation when talking about doing fast async rendering of declarative UIs in Preact

These examples show how it's possible to starve the main event loop with microtasks (because the microtask queue is emptied at the end of every item in the event loop queue). Note that these are contrived examples, but can be reflective of situations where Promises are incorrectly expected to yield to the event loop "because they're async".

• setTimeout-only.js is there to form a baseline

nmcc

Download and install the font

1. Download the Consolas font from http://www.fontpalace.com/font-details/Consolas/
2. Open Finder and navigate to Downloads directory
3. Double click the Consolas.ttf file
4. A dialog box appears displaying the details about the font
5. Click Install font button

Using Consolas font on IntelliJ IDEA:

1. Open IDEA Preferences Window (Press Command + ,)
2. Editor > Colors & Fonts > Font

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

rhamedy

I came across HikariCP and I was amazed by the benchmarks and I wanted to try it instead of my default choice C3P0 and to my surprise I struggled to get the configurations right probably because the configurations differ based on what combination of tech stack you are using.

I have setup Spring Boot project with JPA, Web, Security starters (Using [Spring Initializer][1]) to use PostgreSQL as a database with HikariCP as connection pooling.
I have used Gradle as build tool and I would like to share what worked for me for the following assumptions:

1. Spring Boot Starter JPA (Web & Security - optional)
2. Gradle build tool
3. PostgreSQL running and setup with a database (i.e. schema, user, db)

This gist is related to SO post https://stackoverflow.com/questions/26490967/how-do-i-configure-hikaricp-in-my-spring-boot-app-in-my-application-properties-f

hkan

0⃣   0, keycap, zero
1⃣   1, number, one
🕜   1, 30, clock, time, one, thirty, 1:30, one-thirty
🕐   1, clock, time, one, 00, o’clock, 1:00, one o’clock
2⃣   2, number, two
🕝   2, 30, clock, time, two, thirty, 2:30, two-thirty
🕑   2, clock, time, two, 00, o’clock, 2:00, two o’clock
3⃣   3, keycap, three
🕞   3, 30, three, clock, time, thirty, 3:30, three-thirty
🕒   3, three, clock, time, 00, o’clock, 3:00, three o’clock

LukeMathWalker

name: Security audit
on:
  schedule:
    - cron: '0 0 * * *'
  push:
    paths:
      - '**/Cargo.toml'
      - '**/Cargo.lock'
jobs:
  security_audit:

dhh

# THIS LINUX SETUP SCRIPT HAS MORPHED INTO A WHOLE PROJECT: HTTPS://OMAKUB.ORG
# PLEASE CHECKOUT THAT PROJECT INSTEAD OF THIS OUTDATED SETUP SCRIPT.
#
#

# Libraries and infrastructure
sudo apt update -y
sudo apt install -y \
	docker.io docker-buildx \
	build-essential pkg-config autoconf bison rustc cargo clang \

DanielThomas

import java.time.Duration;
import java.util.List;
import java.util.concurrent.locks.ReentrantLock;
import java.util.stream.IntStream;
import java.util.stream.Stream;

/**
 * Demonstrate potential for deadlock on a {@link ReentrantLock} when there is both a synchronized and
 * non-synchronized path to that lock, which can allow a virtual thread to hold the lock, but
 * other pinned waiters to consume all the available workers.