taskset vs. numactl

You will find this information useful in case of task affinity on your multicore system:

http://www.glennklockwood.com/hpc-howtos/process-affinity.html

taskset vs. numactl detailed explanation is located on that link.

Reading MSRs from linux

Well, so long and there has been no updates on this blog, but here is a brief technical update.

Right now I'm trying to read some BIOS registers from linux. We have a package on Ubuntu named msr-tools which provide the commands to read the intended registers:

# apt-get install msr-tools

Then modprobe msr, and finally read your MSR register:

# rdmsr 0x1A4

c

# rdmsr 0x198

18b200000c00

Reference:

http://linux.koolsolutions.com/2009/09/19/howto-using-cpu-msr-tools-rdmsrwrmsr-in-debian-linux/