Benchmarks

All benchmarks measured on the Rustbox platform infrastructure. Numbers represent end-to-end latency including sandbox creation, execution, and teardown.

Per-language latency

Median wall time for a minimal program (print("hello") equivalent) per language.

Language	Median latency	Notes
Python	36 ms	CPython interpreter startup
JavaScript	36 ms	Bun runtime
TypeScript	36 ms	Bun runtime (same as JS)
C	60 ms	GCC compilation + execution
C++	72 ms	GCC compilation + execution
Go	120 ms	Go compiler + execution
Rust	140 ms	rustc compilation + execution
Java	445 ms	javac + JVM startup

Interpreted languages (Python, JS, TS) are fastest because there is no compilation step. Compiled languages include compilation time within the sandbox.

Throughput

Sustained throughput under load with concurrent submissions.

Language	Executions/sec
Python	148
JavaScript	104
TypeScript	104
C	85
C++	72
Go	55
Rust	48
Java	18

Throughput is measured with sufficient concurrent clients to saturate the platform’s worker pool. Each execution is a full sandbox lifecycle (create, execute, teardown) with isolation verification.

What the numbers include

Every measurement includes the full cost:

• Sandbox creation (namespaces, cgroups, mount setup, seccomp filter installation)
• Credential drop and privilege stripping
• Compilation (for compiled languages)
• Execution
• Sandbox teardown and resource cleanup

There is no warm-start optimization, no container reuse, no pre-created pools. Every execution builds a fresh sandbox from scratch.

Machine specifications

Benchmarks were measured on the following hardware:

Spec	Value
CPU	AMD EPYC (4 cores)
Memory	16 GB
Kernel	Linux 6.x (cgroup v2)
Storage	NVMe SSD

Production infrastructure may differ. Reach out if you need latency guarantees for your use case.