On 2.6.31-11-rt (Ubuntu 10.04 realtime kernel) ./a.out starting... My original scheduling policy is SCHED_OTHER (0) The original minimum scheduling priority is 0, the maximum is 0 sched_get_priority_max(1) returned 99 sched_get_priority_min(1) returned 1 My target scheduling policy is SCHED_FIFO (1) The target minimum scheduling priority is 1, the maximum is 99 params.sched_priority now set to 98 It worked - now running in high-priority mode params.sched_priority now set to 98 Now running at original scheduler policy My scheduling policy is SCHED_OTHER The minimum scheduling priority is 0, the maximum is 0
On Thu, Nov 8, 2012 at 4:19 PM, Kevin D. Clark <kevin_d_cl...@comcast.net>wrote: > > Strange. I made a few minor changes (see attached patch) > and when I run your code on my test machine running Linux kernel > 2.6.35 I get the following output: > > $ sudo ./latencytest > ./latencytest starting... > My original scheduling policy is SCHED_OTHER (0) > The original minimum scheduling priority is 0, the maximum is 0 > sched_get_priority_max(1) returned 99 > sched_get_priority_min(1) returned 1 > My target scheduling policy is SCHED_FIFO (1) > The target minimum scheduling priority is 1, the maximum is 99 > params.sched_priority now set to 98 > It worked - now running in high-priority mode > params.sched_priority now set to 98 > Now running at original scheduler policy > My scheduling policy is SCHED_OTHER > The minimum scheduling priority is 0, the maximum is 0 > $ > > We'll have to look deeper. Of course, the first thing that comes to > mind is that you are running a 3.x kernel, and I am not (yet). > > Regards, > > --kevin > -- > alumni.unh.edu!kdc / http://kdc-blog.blogspot.com/ > GnuPG: D87F DAD6 0291 289C EB1E 781C 9BF8 A7D8 B280 F24E > > And the Army Ants, they leave nothin' but the bones... > -- Tom Waits > > > > > _______________________________________________ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > -- -- Thomas
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