Changing CPU limits

[Eddie Wyatt]

 > It appears that ULTRIX determines the cpu limit for a process at process
 > creation.  I can use the "limit" command to change my cpu limit for the
 > current process (csh) and any future processes.  My question:  is there 
 > a way to modify this limit once the process is already running?  Then if a 
 > process I had running in the background was approaching its cpu limit, I 
 > could up the limit and avoid having to restart the process from scratch.  
 > Any ideas would be appreciated.  Thanks.

    {
    struct rlimit rlp;

    getrlimit(RLIMIT_CPU,&rlp);
    rlp.rlim_cur = rlp.rlim_max;
    setrlimit(RLIMIT_CPU,&rlp);
    }

This will set the cpu limit to the hard limit (can't go high unless your root).


-- 

Eddie Wyatt 				e-mail: edw at ius1.cs.cmu.edu