如果你只知道CPU这么一个概念,那么是无法理解CPU的拓扑的.事实上,在NUMA架构下,CPU的概念从大到小依次是:Node.Socket.Core.Logical Processor. 随着多核技术的发展,我们将多个CPU封装在一起,这个封装一般被称为Socket. 也就是物理处理器插上的地方, 看起来像这样: Socket中的每个核心被称为Core. 为了进一步提升CPU的处理能力,Intel又引入了HT(Hyper-Threading,超线程)的技术,一个Core打开HT之后,在OS看来就…

公司服务器是120核心cpu,但是实际应用中只有40核,原因是业务部门发现服务器cpu承载30%的时候sql 就会卡死: 然后从sqlserver 去查询,cpu核心数: SELECT COUNT(1) FROM SYS.DM_OS_SCHEDULERS WHERE SCHEDULER_ID<255 结果:120 但是cpu核心数对于sqlserver 是可以配置调节: 然后查看在使用是多少个? SELECT COUNT(1) FROM SYS.DM_OS_SCHEDULERS WHERE SC…

$injector.$rootScope和$scope是angularJS框架中比較重要的东西,理清它们之间的关系,对我们兴许学习和理解angularJS框架都很实用. 1.$injector事实上是一个IOC容器.包括了非常多服务(类似于spring框架中的bean),其他代码可以通过       $injector.get("serviceName")的方式.从injector中获取所须要的服务. 详情參考这篇文章 2.scope是angularJS中的作用域(事实上就是存储数据的…

BACKGROUND OF THE INVENTION The invention generally relates to virtual machine management, and more particularly to efficient scheduling of virtual machines using processor state information. Virtualization of machine resources has been of significan…

Techniques for configuring a hypervisor scheduler to make use of cache topology of processors and physical memory distances between NUMA nodes when making scheduling decisions. In the same or other embodiments the hypervisor scheduler can be configur…

Processor Groups https://docs.microsoft.com/en-us/windows/desktop/ProcThread/processor-groups The 64-bit versions of Windows 7 and Windows Server 2008 R2 and later versions of Windows support more than 64 logical processors on a single computer. This…

BACKGROUND OF THE INVENTION  1. Field of the Invention  The present invention relates generally to heterogeneous computer systems.  2. Background Art  Computers and other such data processing devices have at least one control processor that is genera…

http://en.wikipedia.org/wiki/Pentium Pentium From Wikipedia, the free encyclopedia     This article is about the Pentium brand. For the original Pentium CPU, see P5 (microarchitecture). This article needs additional citations for verification. Please…

BACKGROUND Many modern operating systems (OS's) use the Advanced Configuration and Power Interface (ACPI) standard, e.g., Rev. 3.0b, published Oct. 10, 2006, for optimizing system power. An ACPI implementation allows a processor core to be in differe…

A multi-core processor includes logical partitions that have respective processor cores, memory areas, and Ethernet controllers. At least one of the Ethernet controllers is disabled for external communication and is assigned as an inter-partition Eth…