Tag: allocation

Optimizing the Capacity of a HashMap

This article discusses how to optimize memory allocation in HashMaps by understanding the differences between allocation and mapping capacity. It emphasizes the importance of choosing the correct initial capacity, ideally a power of two, to mitigate space overhead and prevent performance degradation. Several formulas for calculating proper capacity are reviewed.

0

Detect proactively whether application’s memory is under-allocated

When an application is under-allocated memory, performance issues arise, including degraded transaction response times, increased CPU usage, and potential OutOfMemoryErrors. Proactively analyzing garbage collection logs can help identify memory allocation problems. Monitoring specific patterns in these logs enables developers to diagnose whether more memory is needed or if a memory leak exists.

0

Up ↑