this is not BIOS settings problem, because on dual boot systems, CPU runs at full speed on Windows there are several bug reports about this issue This feature is nice, if we are running workstation, but what I've noticed, we do have the same CPU throttling on Ubuntu Server 10.04 builds and on CentOS 5.3, 5.4 and 5.5 builds (thus on RedHat too).Īfter hours of digging google, I've found that: There will be other lines for all the CPUs/cores/threads, probably with the same values. Oops, we are paying for 2 Core 2Ghz CPU that runs on 600Mhz on one core and 1000Mhz on another!!! Model name : Intel(R) Core(TM) 2.00GHz cpu MHz : 1000.000 model name : Intel(R) Core(TM) 2.00GHz cpu MHz : 600.000 Grep -E '^model name|^cpu MHz' /proc/cpuinfo

This can be easily checked with this command: When doing inventory of Linux servers, that I'm administering, I've found that some of them are running on lower CPU speed, then they could. If you have a server on collocation with the super-fast CPU, that doesn't mean that you get it running at full power.

Frequency scaling quick cpu