From: Theo Veenker <Theo.Veenker@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] high latency every 8 seconds
Date: Tue, 27 Feb 2007 18:03:38 +0100 [thread overview]
Message-ID: <45E4646A.10205@domain.hid> (raw)
Hi all,
I'm installing xenomai 2.2.5 (kernel 2.6.17.14) on a number of
systems (MSI 945P, Intel P4 3Ghz). My kernel runs fine on several
other/older systems, but on the new systems there is something going
on every 8 seconds. See output of latency test below. What could
this be? Is this an SMI effect?
== Sampling period: 100 us
== Test mode: periodic user-mode task
== All results in microseconds
warming up...
RTT| 00:00:01 (periodic user-mode task, 100 us period, priority 99)
RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat worst
RTD| -0.234| -0.063| 7.845| 0| -0.234| 7.845
RTD| -0.308| -0.015| 8.496| 0| -0.308| 8.496
RTD| -0.313| -0.014| 7.847| 0| -0.313| 8.496
RTD| -0.308| -0.017| 8.502| 0| -0.313| 8.502
RTD| -0.424| -0.012| 8.431| 0| -0.424| 8.502
RTD| -0.308| -0.030| 8.329| 0| -0.424| 8.502
RTD| -0.311| -0.012| 8.459| 0| -0.424| 8.502
RTD| -0.308| 0.696| 7169.625| 71| -0.424| 7169.625
RTD| -0.308| -0.016| 8.351| 71| -0.424| 7169.625
RTD| -0.309| -0.017| 8.421| 71| -0.424| 7169.625
RTD| -0.313| -0.016| 8.340| 71| -0.424| 7169.625
RTD| -0.308| -0.015| 8.395| 71| -0.424| 7169.625
RTD| -0.311| -0.010| 8.607| 71| -0.424| 7169.625
RTD| -0.308| -0.021| 8.450| 71| -0.424| 7169.625
RTD| -0.308| -0.017| 8.401| 71| -0.424| 7169.625
RTD| -0.308| 0.704| 7161.139| 142| -0.424| 7169.625
RTD| -0.311| -0.017| 8.349| 142| -0.424| 7169.625
RTD| -0.312| 0.042| 8.435| 142| -0.424| 7169.625
RTD| -0.318| 0.020| 8.467| 142| -0.424| 7169.625
RTD| -0.394| 0.335| 8.820| 142| -0.424| 7169.625
RTD| -0.363| 1.034| 5.484| 142| -0.424| 7169.625
RTD| -0.410| 0.185| 8.428| 142| -0.424| 7169.625
RTD| -0.312| 0.024| 8.478| 142| -0.424| 7169.625
RTD| -0.308| 0.728| 7060.879| 212| -0.424| 7169.625
RTD| -0.282| 0.016| 8.424| 212| -0.424| 7169.625
RTD| -0.499| 0.011| 8.490| 212| -0.499| 7169.625
and so on...
Regards,
Theo
next reply other threads:[~2007-02-27 17:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-27 17:03 Theo Veenker [this message]
2007-02-27 17:41 ` [Xenomai-help] Re: high latency every 8 seconds Jan Kiszka
2007-02-27 19:23 ` Theo Veenker
2007-02-27 20:02 ` Jan Kiszka
2007-03-06 10:32 ` Theo Veenker
2007-03-06 11:34 ` Ulrich Schwab
2007-03-06 12:09 ` Theo Veenker
2007-03-07 11:48 ` Theo Veenker
2007-02-28 0:09 ` Gilles Chanteperdrix
2007-02-28 11:56 ` Theo Veenker
2007-02-28 15:10 ` Gilles Chanteperdrix
2007-02-27 17:46 ` [Xenomai-help] " Gilles Chanteperdrix
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