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…

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…

A hypervisor calculates the total number of processor cycles (the number of processor cycles of one or more physical processors) in a first length of time based on the sum of the operating frequencies of the respective physical processors and the fir…

首先这个问题,我只是其中参与者之一.但这个问题很有参考意义,特记录下来. 还有我第一次用"彻底"这个词,不知道会不会有人喷?其实,还有一些问题,也不是特别清楚.比如说什么是CPU流水(我又不是硬件工程师). 问题现象 现网数据库切换到新的物理服务器时,出现了业务查询超时异常问题. 详细过程不再熬述了,总之对比新旧硬件环境的不同.初步怀疑是新服务器CPU的问题. 定位过程 现网肯定不能不停重试,于是在本地服务器用sysbench压测. 查看CPU占比,sys占比特别高.vmstat显示c…

Various embodiments of methods and systems for thermally aware scheduling of workloads in a portable computing device that contains a heterogeneous, multi-processor system on a chip ("SoC") are disclosed. Because individual processing components…

A method includes storing, with a first programmable processor, shared variable data to cache lines of a first cache of the first processor. The method further includes executing, with the first programmable processor, a store-with-release operation,…

Minimizing the overall power conservation in a symmetric multiprocessor system disposed in a system-on-chip (SoC) depends on using voltage islands operated at different voltages such that similar circuits will perform at significantly different level…

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…

BACKGROUND OF THE INVENTION This relates to Input/Output (I/O) performance in a host system having multiple processors, and more particularly, to efficient usage of multiple processors in handling I/O completions by using interrupt affinity schemes t…

BACKGROUND This disclosure relates generally to the field of computer graphics. More particularly, but not by way of limitation, it relates to technique for manipulating sprites in a rendering system for use with a graphics processor unit (GPU). A sp…