慎用Hyper-Threading Technology

pennate

　　今天，一个同事遇到了一个非常奇怪的问题，他的程序（C#）运用了Hyper-Threading技术，系统用的是Windows 2000 SP4，当程序运行时会随机的抛出一个异常，而且这个bug很不容易reproduce，最后动用了公司几个高手的力量，才找到原因。 　　原来，Hyper-Threading技术不是所有的系统都能很好的支持的，Windows 2000所有版本都不能很好的支持Hyper-Threading技术，如果是在Windows 2000下开发，最好在System BIOS Setup program中将Hyper-Threading禁掉。 　　Intel官方网站上是这样描述的： Operating System Support Microsoft* Windows* Operating System Based PCs The following desktop operating systems include optimizations for HT Technology and are currently eligible to carry the new Intel® Pentium® 4 Processor with HT Technology logo: Microsoft* Windows* XP Professional Edition Microsoft* Windows* XP Home Edition The following operating systems are not recommended for use with Hyper-Threading Technology. If you are using one of the following operating systems, it is advised that you should disable Hyper-Threading Technology in the system BIOS Setup program: Microsoft Windows 2000 (all versions) Microsoft Windows NT* 4.0 Microsoft Windows Me Microsoft Windows 98 Microsoft Windows 98 SE　　看来，我们还不能随便用Hyper-Threading技术，先进的东西要有先进的系统和CPU来支持，呵呵。 SO娱乐城：真_人.足球.彩票齐全| 开户送10元.首存送58元.手机可投∞注任何游戏顶级信用∞提现即时到账SO.CC