Re: 3.14.8 and mrkSoftTest

["Ernest L. Williams Jr." <ernesto@ornl.gov>]

On Tue, 2005-11-08 at 07:01 -0500, Ernest L. Williams Jr. wrote:
> On Tue, 2005-11-08 at 05:46 -0600, Marty Kraimer wrote:
> > On Nov 8, 2005, at 5:30 AM, Ernest L. Williams Jr. wrote:
> > >
> > >
> > > The following is new for Linux:
> > > ====================================================================== 
> > > ==
> > >
> > > # Use POSIX thread priority scheduling (YES or NO)
> > > USE_POSIX_THREAD_PRIORITY_SCHEDULING = YES
> > > ====================================================================== 
> > > ==
> > >
> > > However, I think there are tests in <..>/src/libCom/test, right?
> > >
> > > I hoping for an advantage on linux-based softIOCs.
> > >
> > >
> > 
> > Yes that test works.
> > 
> > Also on any ioc run
> > 
> > epicsThreadShowAll
> > 
> > If the OSS priorities have values, i.e. not all 0, then you are  
> > getting priority scheduling.
> > 
> > Remember that you must run the ioc as root.
> 
> 
> Awesome:
> 
> Here are the results for a linux-x86_64 softIOC:
> ===================================================================
> Normal User:
> epics> epicsThreadShowAll
>             NAME     EPICS ID   PTHREAD ID   OSIPRI  OSSPRI  STATE
>           _main_     0x505d20            0      0       0       OK
>           errlog     0x50b470   1074010464     10       0       OK
>           taskwd     0x57a990   1074280800     10       0       OK
>       timerQueue     0x511ff0   1074813280     70       0       OK
>            cbLow     0x578810   1075870048     59       0       OK
>         cbMedium     0x580090   1075341664     64       0       OK
>           cbHigh     0x584220   1077455200     71       0       OK
>         dbCaLink     0x5845d0   1076398432     50       0       OK
>         scanOnce     0x587af0   1078511968     70       0       OK
>           scan10     0x588460   1079568736     60       0       OK
>            scan5     0x5887c0   1080625504     61       0       OK
>            scan2     0x588b20   1081682272     62       0       OK
>            scan1     0x589380   1077983584     63       0       OK
>          scan0.5     0x5895c0   1082739040     64       0       OK
>          scan0.2     0x589920   1083795808     65       0       OK
>          scan0.1     0x589c80   1084852576     66       0       OK
>        CAC-event     0x5ba2c0   1084324192     52       0       OK
>          CAS-TCP     0x5c7270   1083267424     16       0       OK
>       CAS-beacon     0x50b600   1073875296     14       0       OK
>          CAS-UDP     0x50a420   1076926816     12       0       OK
> epics>
> =====================================================================
> 
> =====================================================================
> Root User:
> epics> epicsThreadShowAll
>             NAME     EPICS ID   PTHREAD ID   OSIPRI  OSSPRI  STATE
>           _main_     0x505d20            0      0       0       OK
>           errlog     0x50b190   1073875296     10      10       OK
>           taskwd     0x57a0a0   1074010464     10      10       OK
>       timerQueue     0x57bce0   1074276704     70      69       OK
>            cbLow     0x57b5b0   1074805088     59      58       OK
>         cbMedium     0x511e70   1075333472     64      63       OK
>           cbHigh     0x5120b0   1075861856     71      70       OK
>         dbCaLink     0x511540   1076390240     50      50       OK
>         scanOnce     0x5873d0   1076918624     70      69       OK
>           scan10     0x587bd0   1077447008     60      59       OK
>            scan5     0x587dc0   1077975392     61      60       OK
>            scan2     0x587fb0   1078503776     62      61       OK
>            scan1     0x5881a0   1079032160     63      62       OK
>          scan0.5     0x588390   1079560544     64      63       OK
>          scan0.2     0x588580   1080088928     65      64       OK
>          scan0.1     0x588770   1080617312     66      65       OK
>        CAC-event     0x5b8b10   1080883552     52      51       OK
>          CAS-TCP     0x5c5a30   1081149792     16      16       OK
>       CAS-beacon     0x5c5c40   1081284960     14      14       OK
>          CAS-UDP     0x5c5e60   1081551200     12      12       OK
> epics>
> ====================================================================

Oops.  I get an exception when exiting the IOC as root:

epics> epicsThreadShowAll
            NAME     EPICS ID   PTHREAD ID   OSIPRI  OSSPRI  STATE
          _main_     0x505d20            0      0       0       OK
          errlog     0x50b190   1073875296     10      10       OK
          taskwd     0x57a0a0   1074010464     10      10       OK
      timerQueue     0x57bce0   1074276704     70      69       OK
           cbLow     0x57b5b0   1074805088     59      58       OK
        cbMedium     0x511e70   1075333472     64      63       OK
          cbHigh     0x5120b0   1075861856     71      70       OK
        dbCaLink     0x511540   1076390240     50      50       OK
        scanOnce     0x5873d0   1076918624     70      69       OK
          scan10     0x587bd0   1077447008     60      59       OK
           scan5     0x587dc0   1077975392     61      60       OK
           scan2     0x587fb0   1078503776     62      61       OK
           scan1     0x5881a0   1079032160     63      62       OK
         scan0.5     0x588390   1079560544     64      63       OK
         scan0.2     0x588580   1080088928     65      64       OK
         scan0.1     0x588770   1080617312     66      65       OK
       CAC-event     0x5b8b10   1080883552     52      51       OK
         CAS-TCP     0x5c5a30   1081149792     16      16       OK
      CAS-beacon     0x5c5c40   1081284960     14      14       OK
         CAS-UDP     0x5c5e60   1081551200     12      12       OK
epics> exit
epicsThread: Unknown C++ exception in thread "timerQueue" at Tue Nov 08
2005 07:01:33.72157000
Segmentation fault
[root@sns-hp-eval1 iocamd64]#


I will run all of this again on 32-bit linux





> 
> 
> Thanks,
> Ernest
> 
> 
> 
> 
> > 
> > Marty
>