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* Cyclictest expected results
@ 2007-09-30 15:37 Jaswinder Singh
  2007-09-30 18:32 ` Robert Schwebel
  0 siblings, 1 reply; 14+ messages in thread
From: Jaswinder Singh @ 2007-09-30 15:37 UTC (permalink / raw)
  To: linux-rt-users; +Cc: tglx

Hello all,

I am testing Cyclictest. And looking for results as in :

http://rt.wiki.kernel.org/index.php/Cyclictest

Here are my results on Intel Pentium 4 :

Command line :  ./cyclictest -t 1 -p 80 -i 10000 -l 10000 -q

2.6.23-rc4 :
WARNING: High resolution timers not available
T: 0 ( 1999) P:80 I:10000 C:  10000 Min:    110 Act: 5556 Avg: 5952 Max:    8021

2.6.23-rc4-rt1 :
WARNING: High resolution timers not available
T: 0 (13711) P:80 I:10000 C:  10000 Min:    999 Act: 5991 Avg: 3823 Max:    6493

2.6.23-rc8 :
WARNING: High resolution timers not available
T: 0 ( 1966) P:80 I:10000 C:  10000 Min:     83 Act: 4823 Avg: 6011 Max:    8029

2.6.23-rc8-rt1 :
WARNING: High resolution timers not available
T: 0 ( 2003) P:80 I:10000 C:  10000 Min:   1500 Act: 6129 Avg: 4502 Max:    7832


Command line :  ./cyclictest -t 1 -p 80 -n -i 10000 -l 10000 -q

2.6.23-rc4 :
WARNING: High resolution timers not available
T: 0 ( 2005) P:80 I:10000 C:  10000 Min:     56 Act: 4827 Avg: 5998 Max:    8016

2.6.23-rc4-rt1 :
WARNING: High resolution timers not available
T: 0 (13668) P:80 I:10000 C:  10000 Min:    389 Act: 3793 Avg: 3819 Max:    7640

2.6.23-rc8 :
WARNING: High resolution timers not available
T: 0 ( 1982) P:80 I:10000 C:  10000 Min:    519 Act: 6121 Avg: 6035 Max:    8017

2.6.23-rc8-rt1 :
WARNING: High resolution timers not available
T: 0 ( 2007) P:80 I:10000 C:  10000 Min:    901 Act: 6334 Avg: 3956 Max:    6957


>From where I can get Linux-2.6.16-hrt5 and Linux-2.6.16-rt12 patches.

CONFIG_HIGH_RES_TIMERS=y are defined in .config then why I am getting
"WARNING: High resolution timers not available".

Why my results are not so impressive in realtime even though I defined:
CONFIG_PREEMPT_RT=y
CONFIG_PREEMPT=y
CONFIG_PREEMPT_SOFTIRQS=y
CONFIG_PREEMPT_HARDIRQS=y
CONFIG_PREEMPT_BKL=y


Min, Avg and Max are showing cyclic latencies. Ideally It should be
ZERO. Am I right ?

Thank you,

Jaswinder Singh.

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2007-10-08 15:42 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2007-09-30 15:37 Cyclictest expected results Jaswinder Singh
2007-09-30 18:32 ` Robert Schwebel
2007-09-30 22:00   ` Thomas Gleixner
2007-09-30 22:26     ` Robert Schwebel
2007-09-30 23:14       ` Thomas Gleixner
2007-10-01  3:30     ` Jaswinder Singh
2007-10-02  6:54       ` Robert Schwebel
2007-10-07 12:50         ` Jaswinder Singh
2007-10-08 14:06           ` Robert Schwebel
2007-10-08 14:46             ` Jaswinder Singh
2007-10-08 15:09             ` Jaswinder Singh
2007-10-08 15:42               ` Thomas Gleixner
2007-10-08 14:55           ` Theodore Tso
2007-10-08 14:55             ` Luis Claudio R. Goncalves

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