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Published on 2010-03-22T00:49:21Z
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I've heard the term hyper-threading thrown around a bit recently, what exactly is hyper-threading and why is it important?
(let's get this question on the first page of google results! ;)
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There seems to be significant confusion about Hyper-Threading. Part of the problem is that vendors like to tout every new feature as the greatest invention since the six-pack, and its follow-on the 12-pack. I used to think the 4-pack was a travesty, but now that I am older and can nolonger finish…
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I can already correctly detect the number of logical processors correctly on all three of these platforms.
To be able to detect the number of physical processors/cores correctly I'll have to detect if hyperthreading is supported AND active (or enabled if you prefer) and if so divide the number of…
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Hey all,
With the new Xeon CPUs supporting Hyper-threading, what is the current wisdom with regard to using it (or not) on a Hyper-V host machine?
I was originally under the impression that turning it on in a virtual host environment could be detrimental as the 'extra' CPUs were not true cores.…
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In a conversation with the network administator, I mentioned that my machine was a dual-core. He told me it was not. I brought up the task manager, went to the perfomance tab, and showed him that there are two separate CPU usage graphs. I have a quad-core machine at home and it has four graphs…
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I have a multithreaded c++ application that runs on Windows, Mac and a few Linux flavours. To make a long story short: Inorder for it to run at maximum efficiency I have to be able to instantiate a single thread per physical processor/core. Creating more threads than there are physical processors/cores…
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I'm trying to decide which spare server I should use to build a backup file/print server. These are both Dell PE2950 machines that haven't been used in about a year or so. One has 2 2.0 ghz quad core procs, and the other has 2 3.0 ghz dual core procs. None of these are the Nehalem procs since they're…
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Provides scalable, compact, lightweight safety-critical platform for ARM processors
Real-time operating system - Operating system - Realtime - Hardware - Embedded system
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I've obtained a substantial performance improvement on a SPARC T4-2 Server running a J2EE Application Server Cluster by deploying the cluster members into Oracle Solaris Containers and binding those containers to cores of the SPARC T4 Processor. This is not a surprising result, in fact, it is…
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There seems to be significant confusion about Hyper-Threading. Part of the problem is that vendors like to tout every new feature as the greatest invention since the six-pack, and its follow-on the 12-pack. I used to think the 4-pack was a travesty, but now that I am older and can nolonger finish…
>>> More
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If you’re interested in the history of microprocessors, the CPU DB at Stanford is a massive database of microprocessors that covers everything from code names to speed to processor families. Play with their visuals or download the entire database and make your own. CPU DB [Stanford.edu] …
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