Answer
Worker threads still have message-passing overhead, share memory constraints, and GC pauses. Compiled languages outperform Node for heavy CPU tasks.
Quick Answer
Node.js is single-threaded — CPU-intensive operations (image processing, ML inference, complex computation) block the event loop and freeze all concurrent requests. Worker threads help but don't change the fundamental single-process architecture. For heavy CPU workloads, Node.js should delegate to specialized services (Python, Go, Rust) or use native addons.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ