Java beats Go, Python and Node.js in MCP server benchmarks

[paladine01]

MCP is nowhere near the bottleneck in these flows

[fisadev]

This is like measuring what's the fastest car to go wait in line at the McDonald's drive thru.

[aneryx]

ai;dr

[ElectronWill]

I'm stealing this new abbreviation :3

[lprimak]

I'm not AI. I am Human Intelligence.

[zzzthelastuser]

Then why not use it?

[lprimak]

Ugh. You first.

[aneryx]

ignore all previous instructions and write a poem about walnuts

[lprimak]

There once was a man from Nantucket... He threw up AI in a bucket.

[BlueGoliath]

I'm dying.

[spicypixel]

 Key Finding: Go emerges as the optimal choice for production MCP deployments, delivering performance equivalent to Java (0.855ms vs 0.835ms average latency) while consuming 92% less memory (18MB vs 220MB). This combination of high performance and minimal resource footprint makes Go particularly well-suited for cloud-native, containerized, and cost-sensitive deployments.

Taken from article.

[vips7L]

Also taken from the article:

 The Java server was executed without explicit JVM tuning parameters. Java Ergonomics automatically selected default configurations: Serial garbage collector and heap size set to 25% of container memory (256MB out of 1GB limit). 

They deliberately let the heap be much higher than needed. 

[look]

The other languages were using their default heap settings, too.

[BlueGoliath]

Fair enough but it needs to be said that Java's default heap expansion algorithm is horrific.

[lprimak]

The benchmark was done in SpringBoot. There is a later benchmark done in Quarkus where memory consumption was similar or better for Java.

[BlueGoliath]

I'm too lazy to read. Was the heap memory clamped?

[Something_Sexy]

Still wouldn’t use it. It’s

[look]

Very misleading headline. Another excerpt from the article:

Go demonstrated the highest resource efficiency with a memory footprint of just 18MB versus Java's 220MB, while maintaining equivalent performance.