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2025-12-04 - 21:44
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Thu Dec 04, 2025 12:46:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36812069911213,79cyclictest3766871-21fschecks_count09:40:155
3681206999759,19cyclictest691ktimers/507:37:575
368120699856,60cyclictest3770409-21ntpq09:45:215
368120699780,59cyclictest3790153-21ntpq10:20:235
3681207997517,19cyclictest0-21swapper/609:05:286
3681206997537,19cyclictest691ktimers/510:36:535
3681206997436,19cyclictest38280272chrt11:27:535
3681207997335,19cyclictest781ktimers/607:25:176
3681206997233,38cyclictest1089-21snmpd10:15:235
3681206996930,39cyclictest0-21swapper/511:07:245
3681206996829,39cyclictest0-21swapper/509:33:525
3681206996828,39cyclictest0-21swapper/509:24:135
3681206996729,38cyclictest0-21swapper/509:50:175
3681206996627,39cyclictest0-21swapper/512:28:415
3681206996627,39cyclictest0-21swapper/508:29:055
3681206996527,38cyclictest0-21swapper/512:01:035
3681206996526,39cyclictest0-21swapper/512:12:095
3681206996426,19cyclictest3750474-21ntpq09:10:215
368120899634,20cyclictest0-21swapper/709:00:167
368120699636,38cyclictest3819288-21dpkg-deb11:13:315
368120699636,38cyclictest3819288-21dpkg-deb11:13:315
3681207996243,19cyclictest781ktimers/608:25:156
368120699590,19cyclictest0-21swapper/511:00:015
3681206995618,37cyclictest0-21swapper/512:06:335
3681206995618,19cyclictest3796946-21munin-run10:35:015
3681206995618,19cyclictest3775120-21cat09:55:175
3681206995618,19cyclictest3699994-21ntpq07:40:235
3681206995618,19cyclictest3682171-21perl07:10:155
3681206995617,39cyclictest3844653-21sed11:55:235
3681206995617,38cyclictest3864233-21ntpq12:30:235
3681206995518,18cyclictest3720805-21systemd-run08:20:015
3681206995517,19cyclictest3741771-21irqstats08:55:315
3681206995419,35cyclictest0-21swapper/510:05:055
3681206995419,35cyclictest0-21swapper/509:26:375
3681206995419,15cyclictest0-21swapper/508:00:455
3681206995416,20cyclictest3692504-21chrt07:29:055
3681206995415,39cyclictest3784515-21ntpq10:10:215
3681206995414,39cyclictest0-21swapper/510:04:375
3681206995318,35cyclictest0-21swapper/507:48:005
3681206995314,39cyclictest0-21swapper/511:39:015
3681206995314,39cyclictest0-21swapper/511:34:535
3681206995314,39cyclictest0-21swapper/511:34:525
3681205995314,39cyclictest0-21swapper/407:30:164
3681204995314,20cyclictest0-21swapper/307:20:183
3681206995233,19cyclictest0-21swapper/511:54:295
3681206995233,19cyclictest0-21swapper/511:54:295
3681206995233,19cyclictest0-21swapper/511:23:175
3681206995233,19cyclictest0-21swapper/511:23:175
3681206995233,19cyclictest0-21swapper/510:46:095
3681206995233,19cyclictest0-21swapper/507:31:335
3681206995233,19cyclictest0-21swapper/507:17:015
3681206995219,14cyclictest0-21swapper/508:50:175
3681206995218,34cyclictest0-21swapper/509:35:255
3681206995218,15cyclictest0-21swapper/508:40:255
3681206995214,38cyclictest3859698-21munin-run12:25:015
3681206995214,20cyclictest0-21swapper/508:05:155
3681206995214,19cyclictest0-21swapper/512:35:375
3681203995233,19cyclictest0-21swapper/211:30:182
3681203995233,19cyclictest0-21swapper/211:30:182
3681206995133,18cyclictest0-21swapper/509:07:255
3681206995132,19cyclictest0-21swapper/511:18:495
3681206995132,19cyclictest0-21swapper/511:01:455
3681206995132,19cyclictest0-21swapper/508:32:455
3681206995132,19cyclictest0-21swapper/508:24:575
3681206995113,19cyclictest3753486-21/usr/sbin/munin09:15:235
3681206995113,19cyclictest0-21swapper/510:50:165
3681206995112,39cyclictest0-21swapper/507:55:335
3681205995113,19cyclictest0-21swapper/411:45:184
3681202995111,39cyclictest3754606-21latency_hist09:20:021
3681206995032,18cyclictest0-21swapper/511:40:535
3681206995032,18cyclictest0-21swapper/511:40:535
3681206995032,18cyclictest0-21swapper/508:48:175
3681206995032,18cyclictest0-21swapper/508:35:535
3681206995031,19cyclictest0-21swapper/511:46:575
3681206995031,19cyclictest0-21swapper/510:40:575
3681206995031,19cyclictest0-21swapper/507:50:055
3681206995031,19cyclictest0-21swapper/507:23:445
3681204995032,18cyclictest0-21swapper/311:50:163
3681204995032,18cyclictest0-21swapper/311:50:163
3681204995011,39cyclictest0-21swapper/308:40:183
3681203995031,19cyclictest0-21swapper/208:05:172
3681201995032,18cyclictest874-21mta-sts-daemon11:10:180
3681201995032,18cyclictest874-21mta-sts-daemon11:10:180
3681206994931,18cyclictest0-21swapper/512:16:015
3681206994931,18cyclictest0-21swapper/509:01:095
3681206994931,18cyclictest0-21swapper/508:13:055
3681206994930,19cyclictest0-21swapper/510:26:175
3681202994911,19cyclictest0-21swapper/110:15:171
3681201994931,0cyclictest0-21swapper/012:30:180
3681201994911,19cyclictest0-21swapper/007:45:150
368120299489,20cyclictest3857550-21/usr/sbin/munin12:20:151
3681202994810,19cyclictest0-21swapper/112:25:181
3681208994729,18cyclictest0-21swapper/711:40:177
3681208994729,18cyclictest0-21swapper/711:40:177
368120299478,20cyclictest0-21swapper/111:00:171
3681202994728,19cyclictest0-21swapper/111:25:171
368120199479,19cyclictest0-21swapper/010:35:180
368120899468,19cyclictest0-21swapper/709:50:177
368120399469,18cyclictest0-21swapper/212:10:172
368120299457,19cyclictest0-21swapper/111:05:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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