0
votes
1answer
213 views

Understanding CPU Throttle

kernel /vmlinuz-2.6.32-379.22.1.lve1.2.17.el6.x86_64 ro root=UUID=7cb0b445-0f63-4ef1-ab73-93c114d8ef6c rd_NO_LUKS rd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto ...
0
votes
3answers
485 views

Does cpu consume power differently while executing instructions and while being idle?

Why does a CPU consume different quantities of power at 2Ghz when it is executing an instruction it is not executing any instruction Should'nt the CPU be consuming same power irrespective of ...
25
votes
2answers
6k views

Disable CPU Scaling in Windows Server 2008 R2

How do you disable CPU power management scaling in Windows Server 2008 R2? After setting the Control Panel, Power Management plan to performance and then rebooting -- CPUID's Cpu-Z still shows the ...
1
vote
2answers
876 views

How to mearsure the average cpu frequency in linux?

I'm trying to measure the average cpu frequency in an DVFS enabled cpu for specific interval , the obvious way of periodically sampling /proc/cpuinfo has very large variants. The cpufreq-stats driver ...
29
votes
9answers
15k views

Does CPU power management affect server performance?

I was doing some simple hand benchmarking on our (live) database server during non-peak hours, and I noticed that queries returned somewhat erratic benchmark results. I had enabled the "Balanced" ...