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2026-03-13 - 13:33
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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 Fri Mar 13, 2026 00:46:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3847163999796,1cyclictest871ktimers/700:35:077
3847163999214,59cyclictest3901867-21cron20:50:017
3847163999013,58cyclictest3907720-21/usr/sbin/munin21:00:027
3847163997335,38cyclictest1086-21runrttasks22:03:297
3847163997113,39cyclictest3953007-21ntpq22:20:207
3847163996526,19cyclictest0-21swapper/721:15:117
3847163996326,18cyclictest0-21swapper/721:22:407
3847163996224,38cyclictest0-21swapper/719:30:457
3847163996123,38cyclictest0-21swapper/722:06:047
3847163995918,19cyclictest4013064-21/usr/sbin/munin00:10:177
3847163995718,39cyclictest3931762-21taskset21:43:157
3847163995616,39cyclictest30750irq/60-ahci[0000:00:07.0]00:15:387
3847163995616,39cyclictest30750irq/60-ahci[0000:00:07.0]00:15:377
384716399560,56cyclictest0-21swapper/722:55:247
3847163995517,19cyclictest3958206-21meminfo22:30:187
3847163995516,0cyclictest0-21swapper/719:15:227
3847163995514,19cyclictest0-21swapper/720:00:027
3847163995414,40cyclictest0-21swapper/722:43:387
3847163995414,19cyclictest0-21swapper/720:42:497
3847163995414,19cyclictest0-21swapper/719:52:547
3847163995414,19cyclictest0-21swapper/719:52:537
3847163995414,0cyclictest0-21swapper/723:35:177
3847163995414,0cyclictest0-21swapper/719:11:357
384716399540,14cyclictest0-21swapper/719:55:197
3847163995314,19cyclictest0-21swapper/723:32:217
3847163995314,19cyclictest0-21swapper/723:05:107
3847163995314,19cyclictest0-21swapper/723:00:097
3847163995314,19cyclictest0-21swapper/722:26:017
3847163995314,19cyclictest0-21swapper/721:29:297
3847163995314,19cyclictest0-21swapper/720:35:027
3847163995314,0cyclictest0-21swapper/723:43:307
3847163995314,0cyclictest0-21swapper/723:23:257
3847163995314,0cyclictest0-21swapper/722:53:337
3847163995314,0cyclictest0-21swapper/721:59:587
3847163995314,0cyclictest0-21swapper/721:03:097
3847163995314,0cyclictest0-21swapper/720:32:537
3847163995314,0cyclictest0-21swapper/719:45:517
3847163995314,0cyclictest0-21swapper/719:40:507
3847163995314,0cyclictest0-21swapper/719:20:037
3847163995314,0cyclictest0-21swapper/700:03:377
3847163995313,19cyclictest0-21swapper/723:13:257
3847163995313,19cyclictest0-21swapper/721:13:067
3847157995311,41cyclictest0-21swapper/123:20:161
3847163995214,0cyclictest0-21swapper/720:25:027
3847163995214,0cyclictest0-21swapper/720:10:017
3847163995214,0cyclictest0-21swapper/720:10:017
3847163995213,19cyclictest0-21swapper/723:58:147
3847163995213,19cyclictest0-21swapper/723:50:107
3847163995213,19cyclictest0-21swapper/723:48:317
3847163995213,19cyclictest0-21swapper/723:25:027
3847163995213,19cyclictest0-21swapper/722:46:577
3847163995213,19cyclictest0-21swapper/722:36:177
3847163995213,19cyclictest0-21swapper/721:05:497
3847163995213,0cyclictest0-21swapper/723:15:027
3847163995213,0cyclictest0-21swapper/721:46:107
3847163995213,0cyclictest0-21swapper/721:30:227
3847163995213,0cyclictest0-21swapper/720:20:587
3847163995213,0cyclictest0-21swapper/720:20:577
3847163995213,0cyclictest0-21swapper/719:35:027
3847163995212,39cyclictest0-21swapper/700:05:567
3847163995212,19cyclictest0-21swapper/720:05:307
3847163995212,19cyclictest0-21swapper/720:05:297
3847163995211,40cyclictest0-21swapper/721:53:057
3847156995219,14cyclictest0-21swapper/020:25:170
3847163995112,39cyclictest0-21swapper/700:33:367
3847163995112,39cyclictest0-21swapper/700:33:357
3847163995112,19cyclictest0-21swapper/722:13:417
3847163995112,19cyclictest0-21swapper/721:39:027
3847163995112,19cyclictest0-21swapper/719:25:027
3847163995112,0cyclictest0-21swapper/722:19:297
3847163995112,0cyclictest0-21swapper/720:45:267
3847163995112,0cyclictest0-21swapper/720:15:307
3847161995132,19cyclictest0-21swapper/521:35:145
3847156995112,20cyclictest0-21swapper/019:55:160
3847161995032,18cyclictest0-21swapper/523:25:165
3847161995031,19cyclictest0-21swapper/522:45:155
3847157995032,18cyclictest0-21swapper/100:05:171
3847160994911,19cyclictest0-21swapper/423:10:144
3847160994911,19cyclictest0-21swapper/422:45:164
3847157994811,18cyclictest0-21swapper/121:30:161
384715799479,19cyclictest0-21swapper/123:25:171
384715799469,18cyclictest0-21swapper/119:10:141
384715699467,39cyclictest0-21swapper/023:40:150
384715799456,19cyclictest0-21swapper/100:35:171
384715699455,39cyclictest0-21swapper/000:35:160
384715699446,19cyclictest0-21swapper/021:35:150
384715699445,39cyclictest0-21swapper/021:20:170
384716199435,19cyclictest0-21swapper/521:05:165
384715799424,19cyclictest0-21swapper/122:00:151
384715899413,19cyclictest0-21swapper/200:20:142
384715699413,19cyclictest0-21swapper/023:10:140
384715699413,19cyclictest0-21swapper/019:35:150
384715799402,19cyclictest0-21swapper/120:15:151
384715699400,19cyclictest0-21swapper/020:40:570
3847163993921,18cyclictest0-21swapper/700:25:477
384715699390,39cyclictest0-21swapper/021:05:150
384715699390,19cyclictest0-21swapper/022:26:010
384716399380,38cyclictest0-21swapper/700:22:227
384716299380,19cyclictest0-21swapper/622:10:156
384716199380,19cyclictest0-21swapper/522:05:145
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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