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Node.js Performance
Memory Leak Guard
Watch heap trend and alert when memory climbs continuously.
Detailed Description
A memory leak guard watches the trend of heap or RSS instead of only checking one value. Memory can naturally move up and down, so the trend matters more than a single sample.
In production, this signal helps detect leaks before the process is killed. Pair it with heap snapshots so you can move from symptom detection to object-level evidence.
Mental Model
sample heap -> keep rolling window -> detect upward slope
When To Use
- ->Catch leaks before OOM restarts
- ->Monitor long-running workers
- ->Validate fixes after removing retained references
Tools: process.memoryUsage, memwatch-next, heapdump
memory-guard.js
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