PerfMatrix 
Following are the Performance Engineering Interview Questions Set #18. Q. 86 What is the ‘Load Profile’ section of the AWR and what information does it provide? Ans: The ‘Load Profile’ summarizes key workload characteristics during the snapshot interval, including transactions per second, logical and physical reads, redo size, and other metrics that help assess the … Read more
Following are the Performance Engineering Interview Questions Set #17. Q. 81 Is a high buffer cache hit ratio always indicative of good performance? Ans: Not necessarily. While a high hit ratio means most data requests are served from memory, it doesn’t account for inefficient queries or unnecessary data access patterns. It’s important to look at … Read more
Following are the Performance Engineering Interview Questions Set #16. Q. 76 Explain the “latch: cache buffers chains” wait event and its impact. Ans: This wait event indicates contention for cache buffer chain latches, which protect the hash chains of buffer headers in the buffer cache. High waits suggest hot blocks or heavy concurrent access to … Read more
Following are the Performance Engineering Interview Questions Set #15. Q. 71 How can you reduce the ‘Buffer Busy Waits’ identified in the AWR report? Ans: It can be reduced by: Q. 72 What are wait events in Oracle, and why are they important for performance analysis? Ans: Wait events represent the time sessions wait for … Read more
Overview Vector addition is a fundamental concept in both physics and mathematics, and it plays a huge role in understanding directions and forces. What makes vector addition important is how often it pops up in the real world—whether you’re studying motion, designing video games, or building artificial intelligence systems. If you’ve ever tried to walk … Read more
Vector subtraction is a fundamental yet crucial concept in mathematics and physics, playing a pivotal role in various fields, including artificial intelligence. Whether you’re trying to understand how objects move in space or how machines learn and think, vector subtraction helps explain the difference between two positions, forces, or data points. If you’ve already studied … Read more