Performance

สวัสดีค้าบบ วันนี้อยากจะมา share การทำ loadtest เพื่อทดสอบประสิทธิภาพของ server กัน ..ว่าถ้ามี user เข้ามา n user ตัว server จะรับ load การทำงานอย่างไร รวมไปถึงค่าต่างๆ ไม่ว่าจะเป็น ระยะเวลาในการรับ request, ระยะเวลาในการเชื่อมต่อ, etc. การติดตั้ง k6 ใน OS ต่างๆ เพื่อนๆ สามารถเข้าไปเลือก install ได้เลย ตามลิงค์ Installation k6 has packages for Linux, Mac, and Windows. Alternatively, you can use a Docker container or a standalone binary.k6.io

Deep dive summary of what’s new in Flutter 3.0, including macOS and Linux stable, performance improvements, Dart 2.17, and more!. — Last year in Google I/O, the Flutter group declared Flutter 2.2. From that point forward, there have been a couple of huge upgrades and stable releases to Flutter. …

by Derk van Veen & Dave Pitts, DBAs, Adyen — At Adyen, we use PostgreSQL as our preferred database and have been running (for many years) one of the largest implementations in the world. In this blogpost, our Database Architects detail how they have been able to mitigate one of its biggest technical challenges — write amplification. Short introduction to PostgreSQL write amplification Write amplification may…

For years I have sought security in systems. I have taken pride in my ability to learn the rules and follow them. It’s led to praise from teachers, supervisors, and countless others. Yet it has led to being disconnected from myself and others. Perfectionistic tendencies exist as a means of…

Você é desenvolvedor(a) Java, Scala, Kotlin ou Clojure? Sim? E quer deixar suas aplicações na JVM mais rápidas? Então este artigo é para você! Quando o assunto é desenvolvimento de software, não é novidade que aplicações com rapidez e eficiência são de extrema importância. …

A Personal Impression It has been said many times that the real beauty of art lies in the intrinsic moments of its creation. There is truth in that, but those intrinsic moments require time and time is always in short supply. A healthy work/ life balance is never easy to…

20th of August, 1911 — the day before the modern culture is changed forever. Another hot day in the Louvre with visitors passing by the masterpieces on the walls. None of them knowing they are in the company of a celebrity. 21st of August, 1911 — a painting has been…

What is the purpose of Project Tungsten? Spark workloads are often slowed down by memory or CPU bottlenecks rather than IO or network communication. So, the purpose of project tungsten is to boost the spark applications by improving its CPU efficiency and reducing memory pressure. Why CPU is the new bottleneck? Improved Hardware has become common: Increasingly large aggregate IO bandwidth. eg, instances…