Technical Blog Post
Abstract
Untangling memory access measurements - memory latency
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By: Jenifer Hopper
Are you interested in better understanding memory access performance? A new article, Untangling memory access measurements - memory latency explains how to use an example benchmark called lat_mem_rd to measure memory read latency on IBM® Power Systems™ servers running Linux.
This article takes a practical approach to measuring memory latency performance, from understanding initial results to moving on to examining the effects of more in-depth system settings and tunings. The article also covers details of the underlying memory hierarchy on POWER7+ systems, so that you have an understanding of the system layout and how the processors interact with memory.
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UID
ibm16171345