Rust Beats Java 486x

A major Indonesian bank moved from Java to Rust and saw 486x boost in memory efficiency... bruh Good News from Digital Tribe CIMB NIAGA Pioneering Innovation: CIMB Niaga Becomes the First Indonesian Bank to Use Rust The Digital Tribe technology team began exploring Rust to enhance speed, efficiency, and cost-effectiveness. We implemented it in our highest-traffic internal-authentication service, and favorite service. The results have been outstanding! Rust vs Java 486x more memory efficient From 3,800 to 8MB, Rust uses an ownership model that checks memory use while compiling, so it doesn't need a garbage collector to run. This avoids the extra work of tracking and freeing unused memory, which Java and other garbage-collected languages require. 31x faster start-up time Our internal authentication service' startup time decreased from ~31 seconds in our Java service to less than 1 second in Rust service, which is 31 times faster, enabling us to scale up services quickly and handle unexpected surges in user demand more efficiently. 12x less CPU usage From 3 cores to 0.25 cores, Rust compiles directly to machine code with minimal runtime overhead, optimizing CPU usage. Java runs on the Java Virtual Machine (JVM), which adds an extra layer that can use more CPU resources. Favorites

The meme shows a screenshot of a CIMB Niaga promotional announcement claiming huge performance improvements after switching an internal service from Java to Rust: 486x better memory efficiency, 31x faster startup, and 12x lower CPU usage. The joke is the exaggerated “486x boost” and the casual “bruh” reaction to corporate tech marketing, while also playing on Java as both the programming language and the Indonesian island of Java. It is sent as a reaction to absurd benchmarks, dramatic rewrites, or Rust-versus-Java programming debates.

• @gentoomemes / 14691 2024-11-12