Messages in this thread |  | | Date | Tue, 11 Mar 2003 03:37:57 +0100 | From | Mike Galbraith <> | Subject | Re: scheduler starvation running irman with 2.5.64bk2 |
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At 07:09 PM 3/10/2003 -0500, rwhron@earthlink.net wrote: > > OK, can you do the following to determine whether we're both seeing the > > _same_ problem? > > > 1.) build the attached rtnice utility (don't remember who wrote/posted > this) > > 2.) login on vt1 and set the shell SCHED_RR via rtnice -n 1 -p <pid_of_sh> > > -d RR > > 3.) login on vt2 and renice that shell to -10 > > 4.) login on another vt as a normal user, and start irman > > 5.) try login/out on another vt, or ps or _whatever_ (doesn't matter) > > until box is starving > > 6.) on vt2, try to do ps (it should hang despite -10 priority) > > 7.) on vt1, try to do ps (it should work just fine) > >Here is the test as I understand it, splitted by tty. Quick summary, >only new process seems starved. RR and nice -10 process behave okay. > >BTW, this is now with 2.5.64bk5.
The only difference I see is that reniced task wasn't starved with this kernel... wonder what the difference is. Thanks for running the test.
-Mike
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