我一直疑惑我的CPU,很早就买的,那时还没有双核流行,但自用了ubuntu之后,就显示如图效果,后来看到TThb(viewtopic.php?p=804673#804673)说的上面这段话才明白怎么回事,到底是不是这样呢?时间: 2008-6-18 周三, 下午2:00 标题: 引用回复
实在不想说LZ什么,双核又不是双CPU
双核和三年前的HT超线程技术没什么分别,本身就是一个CPU,就算是200个核也只是一个CPU,不过是速度快点而已,厂家换个名字提高价钱你们就上当
有那钱买个支持双CPU的主板去,再买两个普通的CPU,比起所谓的双核强多了
超线程与双核是否同一概念?
- relaxssl
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超线程与双核是否同一概念?
- skyx
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Hyperthreading uses idle cycles of the cpu to provide what seems like a second cpu, but is still one physical cpu. It operates at a thread level
Dual core is the approach cpu manufacturers are taking to incorporate two processors in the same IC package.
If we are talking about one running program, it will use ht/dual core only if it is optimised to use it. Very few applications are optimised for multiprocessor systems (especially if talking about games).
If I can be so brave I will estimate that relations between two of them is some 1.3:2 where dual core is 2
no security measure is worth anything if an attacker has physical access to the machine
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- liangsuilong
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PRESCOTT和CEDER MILL 还有双核版的SMITHFIELD和PRELER是NETBURST架构的31级,北木和比TUALATIN拉记得多的WILLAMETTA都是20级,要知道北木是P4最疯狂的时代啊。要不是AMD的BARTON,AMD都可能出不了K8了。呵呵!everyoung 写了:好像是这样的,P4的流水线很长,Northwood核心是20级,Prescott核心有30级流水线,Intel就把流水线一分为二,这样就可以同时执行两个指令,也就是TyperThread技术
不过实际效果好像很差,有时候甚至比关闭HT功能还要慢
P3和PM还有COREDUO都是10级,CONROE和现在的PENRYN都是14级
K7 QUANTISPEED架构是10级整数,15级浮点
K8是12级整数,17级浮点。K10大抵跟K8差不多吧
人的生命是有限的,但是享受Linux的乐趣是无限的!
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http://www.intel.com/cd/ids/developer/a ... 214707.htm
HT dosen't works very well in P4
Maybe it well be better in Nehalem.
HT dosen't works very well in P4
Maybe it well be better in Nehalem.
Thinkpad T400
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