August 2016
Intermediate to advanced
468 pages
9h 53m
English
Content preview from Mastering KVM Virtualization
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Tuning CPU and memory with NUMA
Before we start tuning CPU and memory for NUMA-capable systems, let's see what NUMA is and how it works.
What is NUMA?
NUMA is an abbreviation for Non Uniform Memory Access:
Figure 25: Reference from Wikipedia
Think about NUMA as a system where you have more than one system bus, each serving a small set of processors and associated memory. Each group of processors has its own memory and possibly its own I/O channels. It may not possible to stop or prevent access across these groups. Each of these groups is known as a NUMA node.
In this concept, if a process/thread is running on a NUMA node, the memory on the same node ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.