Comment 50 for bug 132271

I have a 1.83 GHz T2400 Core Duo with 2GB in my Inspiron 9400. I do a lot of math intensive simulation that run for hours. I was running Windows and hit the memory limitation (could only access 1 GB for the application) so switched to Ubuntu. In Ubuntu, the application could access 1.7 GB, but compared to Windows I had about a 33% speed reduction.

I noticed in Linux I was stuck at 1.0 GHz during simulations... cat /proc/cpuinfo

I just wanted the problems fixed... so this is what I did:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies

output was: 1833000 1333000 1000000 (the available frequencies I can set my cpu frequency to)

Then I set the cpu frequency to 1833000:

cpufreq-set -f 1833000

Problem solved for me.... Now Linux simulations are 20% faster than Windows

This is just a solution of how to get around it until a decision is made how how to fix this issue.