Windsurf
performance
Cascade Generated CPU-Intensive Loop
CPU usage spikes to 100% after Cascade added new code, causing application to become unresponsive. Server cannot handle normal traffic load, and response times are terrible. Profiling shows certain methods consuming excessive CPU.
Cascade likely generated algorithms with high computational complexity or inefficient loops.
Error Messages You Might See
CPU usage: 95%
Response time: 30000ms
Application unresponsive
JVM uses 100% CPU
Common Causes
- Cascade generated nested loops with O(n²) or worse complexity on large datasets
- Infinite loop or busy-wait logic in polling code
- Cascade created synchronous processing where asynchronous would be better
- Thread contention: too many threads competing for resources
How to Fix It
Profile application with JProfiler or async-profiler to identify hot methods. Optimize algorithms: avoid nested loops on large data. Use batch processing or pagination. Consider asynchronous processing with queues. Implement caching for repeated calculations. Check for thread contention with jstack sampling.
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Get HelpFrequently Asked Questions
How do I profile CPU usage?
Use async-profiler (open-source) or commercial tools like JProfiler. Identify which methods consume time.
What's the difference between O(n) and O(n²)?
O(n²) means time doubles when data doubles. Scales poorly. For 1M items: O(n)=1M ops vs O(n²)=1 trillion ops.