How to limit CPU usage in Python

[Ramchandra Apte]

you

On Saturday, 22 September 2012 05:14:15 UTC+5:30, Cameron Simpson  wrote:
> On 20Sep2012 12:53, Terry Reedy <tjreedy at udel.edu> wrote:
> 
> | On 9/20/2012 12:46 PM, Terry Reedy wrote:
> 
> | > On 9/20/2012 11:12 AM, Rolando Cañer Roblejo wrote:
> 
> | >> Is it possible for me to put a limit in the amount of processor usage (%
> 
> | >> CPU) that my current python script is using? Is there any module useful
> 
> | >> for this task? I saw Resource module but I think it is not the module I
> 
> | >> am looking for. Some people recommend to use nice and cpulimit unix
> 
> | >> tools, but those are external to python and I prefer a python solution.
> 
> | >> I am working with Linux (Ubuntu 10.04).
> 
> | >
> 
> | > Call the external tools with subprocess.open.
> 
> | 
> 
> | I meant to end that with ? as I don't know how easy it is to get the 
> 
> | external id of the calling process that is to be limited. I presume that 
> 
> | can be done by first calling ps (with subprocess) and searching the 
> 
> | piped-back output.
> 
> 
> 
> If you're limiting yourself, os.getpid().
> 
> -- 
> 
> Cameron Simpson <cs at zip.com.au>

You could use os.times to compute the CPU usage and then stop the process when that happens and then start it after some time using signals.