Running proces on 1 core

dlugasx · 01-24-2011, 11:04 AM

Hi Gurus,

I`m looking for solution. Is it possible to run process on 1 core in UNIX ?

From time to time I must start some very CPU consuming process and unfortunately this process is running on all cores... so at this time working on PC is very hard.

is it possible to manage in linux ?

macemoneta · 01-24-2011, 02:51 PM

Rather than reduce efficiency, just reduce the priority. For example:

Code:

nice -n19 someCpuIntensiveCommand

Reuti · 01-25-2011, 04:01 AM

Quote:

Originally Posted by dlugasx

unfortunately this process is running on all cores...

Do you mean by this its running in parallel automatically, and giving a load equivalent to the number of installed cores?

eSelix · 01-25-2011, 04:12 AM

You can force application to run on specified cores or one core by "taskset" tool. But macemoneta remark is better, unless you must have one core always available to another process. As I known since the kernel v2.6 scheduler is trying to bind one process to one core for performance reason, to minimalize core switches.