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2026-01-01 - 07:09
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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 Jan 01, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251828199143141,1cyclictest786-21systemd-logind21:00:014
2518281991210,120cyclictest0-21swapper/423:35:144
2518281999252,19cyclictest2594425-21munin-run21:25:014
2518281999214,59cyclictest2576391-21ntp_states20:50:204
2518281998527,39cyclictest1086-21runrttasks19:56:214
2518281997517,39cyclictest1-21systemd21:45:014
2518281996930,39cyclictest0-21swapper/419:24:374
251828199689,40cyclictest1087-21snmpd19:53:104
2518281996829,39cyclictest0-21swapper/423:17:374
2518281996829,39cyclictest0-21swapper/419:32:204
2518281996729,19cyclictest2621561-21collect222:10:214
2518281996728,39cyclictest0-21swapper/421:14:254
251828199635,39cyclictest1087-21snmpd21:56:084
2518277996325,19cyclictest0-21swapper/022:50:150
251828199613,39cyclictest2641468-21mailstats22:45:234
251828199612,39cyclictest2566421-21munin-run20:35:014
2518281996123,37cyclictest0-21swapper/421:45:174
251828199581,38cyclictest2560822-21systemd-run20:25:014
2518281995637,19cyclictest2595116-21expr21:25:104
2518281995618,19cyclictest2563615-21munin-run20:30:014
251828199560,37cyclictest2702015-21chrt00:36:394
2518281995517,19cyclictest2686709-21/usr/sbin/munin00:10:134
2518281995517,18cyclictest0-21swapper/419:14:034
2518281995419,15cyclictest0-21swapper/423:43:414
2518281995419,15cyclictest0-21swapper/422:59:414
2518281995419,15cyclictest0-21swapper/420:11:454
2518281995419,15cyclictest0-21swapper/420:09:004
2518281995419,15cyclictest0-21swapper/400:23:564
2518281995335,18cyclictest0-21swapper/420:04:394
2518281995334,19cyclictest0-21swapper/420:38:254
2518281995333,19cyclictest0-21swapper/421:34:534
2518281995333,19cyclictest0-21swapper/421:34:524
2518281995319,34cyclictest0-21swapper/421:52:014
2518281995319,34cyclictest0-21swapper/421:01:094
2518281995319,34cyclictest0-21swapper/400:33:174
2518281995319,34cyclictest0-21swapper/400:16:214
2518281995319,15cyclictest0-21swapper/423:14:164
2518281995319,15cyclictest0-21swapper/422:29:094
2518281995319,15cyclictest0-21swapper/420:46:374
2518281995319,15cyclictest0-21swapper/420:42:284
2518281995319,14cyclictest0-21swapper/419:35:494
2518281995319,14cyclictest0-21swapper/419:17:234
2518281995318,34cyclictest0-21swapper/422:00:134
2518281995315,19cyclictest2682803-21diskstats00:00:154
2518281995234,18cyclictest0-21swapper/422:16:394
2518281995233,19cyclictest0-21swapper/423:57:174
2518281995233,19cyclictest0-21swapper/422:52:404
2518281995233,19cyclictest0-21swapper/422:23:214
2518281995233,19cyclictest0-21swapper/422:06:324
2518281995233,19cyclictest0-21swapper/421:36:014
2518281995233,19cyclictest0-21swapper/421:17:014
2518281995219,14cyclictest0-21swapper/400:07:134
2518281995213,39cyclictest0-21swapper/423:50:004
2518281995213,39cyclictest0-21swapper/423:24:094
2518281995213,19cyclictest0-21swapper/421:05:214
2518281995133,18cyclictest0-21swapper/419:40:134
2518281995132,19cyclictest0-21swapper/423:29:334
2518281995132,19cyclictest0-21swapper/423:04:364
2518281995132,19cyclictest0-21swapper/422:41:294
2518281995132,19cyclictest0-21swapper/422:36:554
2518281995132,19cyclictest0-21swapper/420:17:004
2518281995132,0cyclictest0-21swapper/419:45:334
2518278995113,19cyclictest0-21swapper/122:35:141
2518281995032,18cyclictest0-21swapper/422:32:534
2518281995032,18cyclictest0-21swapper/400:26:374
2518281995031,19cyclictest0-21swapper/423:52:494
2518281995031,19cyclictest0-21swapper/423:34:494
2518281995031,19cyclictest0-21swapper/423:06:254
2518281995031,19cyclictest0-21swapper/419:28:054
2518277994930,19cyclictest0-21swapper/000:00:180
2518283994829,19cyclictest0-21swapper/622:55:166
2518277994810,19cyclictest0-21swapper/023:10:310
251827799479,19cyclictest0-21swapper/023:05:210
2518277994728,19cyclictest0-21swapper/021:20:180
251828399468,19cyclictest79-21ksoftirqd/600:25:166
251827799468,38cyclictest0-21swapper/020:15:160
251827799468,19cyclictest0-21swapper/020:05:160
251828499456,39cyclictest0-21swapper/721:45:157
2518283994527,18cyclictest0-21swapper/623:40:156
251827899445,39cyclictest0-21swapper/122:10:171
251827799424,19cyclictest0-21swapper/022:15:160
2518284994122,19cyclictest0-21swapper/723:45:167
2518278994123,18cyclictest0-21swapper/100:35:181
251827799413,38cyclictest0-21swapper/023:15:180
251827799413,19cyclictest0-21swapper/019:30:150
251828499402,19cyclictest0-21swapper/720:50:167
2518279994021,19cyclictest0-21swapper/221:25:142
2518284993919,20cyclictest0-21swapper/721:50:147
251828499391,38cyclictest0-21swapper/721:15:177
251828499390,0cyclictest0-21swapper/700:30:237
251828399390,39cyclictest0-21swapper/619:15:156
251828299390,19cyclictest0-21swapper/522:05:165
251827799391,19cyclictest0-21swapper/023:30:180
251828499380,19cyclictest0-21swapper/722:00:167
251828399380,19cyclictest0-21swapper/622:25:156
2518279993819,19cyclictest0-21swapper/222:55:152
2518283993718,19cyclictest0-21swapper/620:55:156
251828499360,36cyclictest0-21swapper/719:10:157
251828399360,17cyclictest0-21swapper/621:05:166
251828499350,15cyclictest0-21swapper/723:00:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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