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2026-03-22 - 08:11
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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
Characteristics of the 100 highest latencies:
System rackdslot3.osadl.org (updated Sun Mar 22, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2759223270,8sleep341-21ksoftirqd/319:05:263
282322203170,22sleep00-21swapper/019:09:250
281472203169,23sleep20-21swapper/219:08:192
279632202169,22sleep10-21swapper/119:06:011
83852740,3sleep0111rcuc/019:35:000
179762600,2sleep30-21swapper/319:55:003
28568995622,4cyclictest9-21ksoftirqd/023:35:190
28571995420,4cyclictest41-21ksoftirqd/300:30:013
28571994919,3cyclictest41-21ksoftirqd/323:10:223
28571994916,8cyclictest41-21ksoftirqd/319:45:003
28571994819,4cyclictest41-21ksoftirqd/323:40:163
28571994819,4cyclictest41-21ksoftirqd/322:05:183
28571994816,7cyclictest41-21ksoftirqd/322:45:113
28571994717,7cyclictest41-21ksoftirqd/323:20:013
28571994717,4cyclictest41-21ksoftirqd/322:40:223
28571994715,7cyclictest41-21ksoftirqd/323:35:273
28571994715,5cyclictest41-21ksoftirqd/322:10:123
28571994714,8cyclictest41-21ksoftirqd/320:40:243
2856899475,3cyclictest9-21ksoftirqd/000:40:010
28571994618,3cyclictest41-21ksoftirqd/323:30:263
28571994618,3cyclictest41-21ksoftirqd/323:30:263
28571994614,8cyclictest41-21ksoftirqd/323:45:163
28571994614,7cyclictest41-21ksoftirqd/319:25:123
28571994614,4cyclictest41-21ksoftirqd/320:10:263
2857199458,4cyclictest41-21ksoftirqd/322:55:243
28571994518,7cyclictest41-21ksoftirqd/321:50:193
28571994515,7cyclictest41-21ksoftirqd/321:35:133
28571994514,7cyclictest41-21ksoftirqd/300:00:003
28571994514,4cyclictest41-21ksoftirqd/321:45:193
28571994511,10cyclictest41-21ksoftirqd/323:30:003
28571994510,8cyclictest41-21ksoftirqd/321:30:013
28571994417,3cyclictest41-21ksoftirqd/320:20:183
28571994414,8cyclictest41-21ksoftirqd/322:00:013
28571994414,8cyclictest41-21ksoftirqd/322:00:013
28571994412,4cyclictest41-21ksoftirqd/321:30:193
28571994412,4cyclictest41-21ksoftirqd/320:25:193
28571994411,8cyclictest41-21ksoftirqd/319:15:153
2856899443,3cyclictest121rcu_preempt20:37:370
2857199439,8cyclictest41-21ksoftirqd/321:20:213
2857199438,5cyclictest41-21ksoftirqd/300:20:273
2857199438,11cyclictest41-21ksoftirqd/320:15:183
28571994314,7cyclictest41-21ksoftirqd/300:10:003
28571994313,8cyclictest41-21ksoftirqd/319:35:003
28571994312,4cyclictest41-21ksoftirqd/300:00:253
28571994311,4cyclictest41-21ksoftirqd/319:45:273
28571994311,4cyclictest41-21ksoftirqd/319:45:273
28571994310,3cyclictest41-21ksoftirqd/320:55:253
28568994311,4cyclictest9-21ksoftirqd/023:25:170
2857199429,8cyclictest41-21ksoftirqd/322:20:143
2857199429,8cyclictest41-21ksoftirqd/322:20:003
28571994230,3cyclictest41-21ksoftirqd/322:35:153
2857199422,3cyclictest121rcu_preempt00:38:453
28571994214,7cyclictest41-21ksoftirqd/322:54:593
28571994212,6cyclictest41-21ksoftirqd/322:00:263
28571994210,4cyclictest41-21ksoftirqd/323:05:013
28571994210,4cyclictest41-21ksoftirqd/300:15:253
28568994235,3cyclictest9-21ksoftirqd/000:05:000
2857199419,8cyclictest41-21ksoftirqd/320:40:003
2857199419,4cyclictest41-21ksoftirqd/319:40:003
2857199418,4cyclictest41-21ksoftirqd/323:15:193
2857199418,4cyclictest41-21ksoftirqd/323:05:123
28571994110,4cyclictest41-21ksoftirqd/300:30:153
28571994110,4cyclictest41-21ksoftirqd/300:30:153
28569994136,3cyclictest25-21ksoftirqd/122:19:591
2856899415,3cyclictest121rcu_preempt20:05:200
139391410,33ptp4l0-21swapper/319:10:003
139391410,0ptp4l401ktimersoftd/322:25:093
2857199407,3cyclictest41-21ksoftirqd/321:15:203
28571994010,8cyclictest41-21ksoftirqd/320:55:013
28571994010,4cyclictest41-21ksoftirqd/321:05:163
28571994010,4cyclictest41-21ksoftirqd/320:45:163
28569994036,2cyclictest25-21ksoftirqd/123:40:011
28569994035,3cyclictest25-21ksoftirqd/122:35:011
2856899405,3cyclictest121rcu_preempt19:50:150
28568994035,3cyclictest9-21ksoftirqd/000:10:010
2857199397,8cyclictest41-21ksoftirqd/323:50:143
2857199397,7cyclictest41-21ksoftirqd/320:30:213
2857199397,4cyclictest41-21ksoftirqd/322:30:143
28571993910,3cyclictest41-21ksoftirqd/321:40:203
28569993935,3cyclictest25-21ksoftirqd/122:40:011
28569993934,3cyclictest25-21ksoftirqd/122:00:011
28569993934,3cyclictest25-21ksoftirqd/122:00:011
28569993934,3cyclictest25-21ksoftirqd/121:40:001
28569993934,3cyclictest25-21ksoftirqd/100:40:001
28568993934,3cyclictest9-21ksoftirqd/000:19:590
28571993832,3cyclictest41-21ksoftirqd/319:20:263
28570993832,4cyclictest33-21ksoftirqd/219:45:002
28568993834,2cyclictest9-21ksoftirqd/019:20:000
28568993833,3cyclictest21327-21dump-pmu-power23:24:590
28568993832,3cyclictest207-21systemd-journal21:49:550
28568993822,4cyclictest9-21ksoftirqd/020:45:140
2857199377,4cyclictest41-21ksoftirqd/320:00:263
2857199374,4cyclictest41-21ksoftirqd/321:00:133
28571993732,3cyclictest41-21ksoftirqd/300:10:153
2857199370,5cyclictest41-21ksoftirqd/321:10:243
28570993731,4cyclictest33-21ksoftirqd/223:31:492
28570993731,4cyclictest33-21ksoftirqd/223:31:492
28569993731,4cyclictest25-21ksoftirqd/122:42:551
28569993731,4cyclictest25-21ksoftirqd/100:31:461
28569993731,4cyclictest25-21ksoftirqd/100:31:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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