November 2007
Intermediate to advanced
848 pages
27h 15m
English
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Switching to Another Thread on a Hyper-Threaded CPU
Hyper-threading is a technology available on some Xeon, Pentium 4, and later CPUs. A hyper-threaded processor chip has multiple "logical" CPUs, and each can run a thread. Each thread has its own architectural state (set of registers), but all threads share main execution resources such as the CPU cache. When one thread is paused, the CPU automatically executes another thread; this happens without operating system intervention. A pause is a cache miss, branch misprediction, waiting for results of a previous instruction, and so on. Intel reports that hyper-threaded CPUs improve throughput somewhere between 10 percent to 30 percent, depending on the application and how it is using memory. For more ...
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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.