* Dan Nelson <[EMAIL PROTECTED]> [2004-11-16 16:56 +0100]: > In the last episode (Nov 16), David J. Weller-Fahy said: > > If so, what is the difference between the following two commands (in > > terms of priority level)? > > nice isoqlog > > isoqlog > > man nice: > The nice utility runs utility at an altered scheduling priority, > by incrementing its `nice'' value by the specified increment, or a > default value of 10.
Doh! I missed that in the man page. Ok, I dug a little deeper and found that the default priority is 0 (man setpriority, who would've figured? :). So, to answer my own question (with your prompting): Prepending 'nice' to any command runs it at priority 10, without 'nice' it would run at 0 (or 'normal'). Idle priorities range from 0 to 31, realtime from 0 to 31, and normal priority is in between (and, according to setpriority, is also 0... lots of zeros). So it will make a difference. > > nice sudo isoqlog > > sudo nice isoqlog > The first may take longer to execute on a busy machine, since sudo > itself is running at a lower priority. The 2nd may be a security > hazard, depending on whether you allowed "nice isoqlog" or just "nice" > (with any command) in your sudo config file. I had decided not to allow 'nice' with any command, it's pleasant to see that I was correct. So using the first syntax for non-time-sensitive programs would keep those from hogging the machines resources, correct? Well, I think I've got it, now. Thanks again for a pointer to the obvious. ;] Regards, -- dave [ please don't CC me ] _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"