I am trying to run a command in realtime mode just to see if it behaves any different as far as timings are concerned. Man page says: CHRT(1) Linux User’s Manual CHRT(1) NAME chrt - manipulate real-time attributes of a process SYNOPSIS chrt [options] prio command [arg]... chrt [options] -p [prio] pid So, I tried the first example instance above: $ sudo chrt 0 ./freq -s120 -u0 -r chrt: failed to set pid 0's policy: Invalid argument Hmmm. I thought the arg after chrt should be the value of the priority, since options to chrt are optional!!! Another broken utility??? Soo I tried: $ sudo chrt ./freq -s120 -u0 -r # i.e. no value for priority chrt: failed to set pid 0's policy: Invalid argument Anyone tried this before? Any clues? -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines