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2026-06-11 - 10:42
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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 rackdslot4.osadl.org (updated Thu Jun 11, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591232167,22phc2sys0-21swapper/319:06:293
60362203170,22sleep10-21swapper/119:09:551
59162200167,22sleep00-21swapper/019:08:210
57272200167,22sleep20-21swapper/219:05:542
2477921350,2sleep20-21swapper/219:45:212
604428161,11sleep30-21swapper/319:10:013
38922610,1sleep30-21swapper/300:30:133
38922610,1sleep30-21swapper/300:30:133
58632540,2sleep20-21swapper/221:20:012
633999531,19cyclictest1319-21snmpd20:55:092
6340995233,3cyclictest41-21ksoftirqd/321:05:273
633999520,20cyclictest647-21chrt20:03:022
633799520,11cyclictest31240-21cstates20:00:130
633799516,7cyclictest1332-21df_abs22:15:140
6340995016,4cyclictest41-21ksoftirqd/322:24:593
633799501,11cyclictest9446-21sed22:30:190
6340994918,4cyclictest41-21ksoftirqd/323:05:003
6340994912,8cyclictest41-21ksoftirqd/300:10:003
6340994835,10cyclictest41-21ksoftirqd/319:20:013
6340994813,4cyclictest41-21ksoftirqd/320:25:013
633799480,16cyclictest3519-21apt-get21:15:110
6340994712,4cyclictest41-21ksoftirqd/322:00:003
6340994711,7cyclictest41-21ksoftirqd/319:49:593
6340994710,5cyclictest41-21ksoftirqd/321:39:593
633999471,19cyclictest1319-21snmpd19:28:082
633799477,5cyclictest9-21ksoftirqd/021:30:210
6337994741,3cyclictest717-21sh00:25:000
633799470,11cyclictest14005-21expr20:30:120
190282470,2sleep00-21swapper/022:50:170
634099469,9cyclictest41-21ksoftirqd/320:45:003
6340994618,7cyclictest41-21ksoftirqd/323:05:243
6340994612,4cyclictest41-21ksoftirqd/322:40:013
6340994512,7cyclictest41-21ksoftirqd/321:35:013
6340994416,3cyclictest41-21ksoftirqd/320:15:133
6340994413,8cyclictest41-21ksoftirqd/300:15:003
6340994410,5cyclictest41-21ksoftirqd/322:00:273
6339994438,3cyclictest10601-21turbostat22:35:002
6340994314,7cyclictest41-21ksoftirqd/321:55:003
6340994313,8cyclictest41-21ksoftirqd/323:45:003
6340994312,10cyclictest41-21ksoftirqd/300:20:113
6340994310,4cyclictest41-21ksoftirqd/320:35:143
633799438,4cyclictest9-21ksoftirqd/000:25:240
138491430,0ptp4l401ktimersoftd/320:01:243
634099429,10cyclictest41-21ksoftirqd/300:35:233
6340994213,8cyclictest41-21ksoftirqd/322:50:273
6340994212,8cyclictest41-21ksoftirqd/323:45:263
6340994211,4cyclictest41-21ksoftirqd/300:25:263
633999421,39cyclictest0-21swapper/221:05:242
633999421,19cyclictest22295-21meminfo19:40:212
633999420,21cyclictest20816-21chrt19:38:392
633799420,13cyclictest18596-21apt-get20:40:100
138491420,0ptp4l401ktimersoftd/319:50:043
138491420,0ptp4l401ktimersoftd/300:03:593
634099419,8cyclictest41-21ksoftirqd/321:44:593
6340994136,3cyclictest41-21ksoftirqd/321:25:013
6340994127,11cyclictest41-21ksoftirqd/321:15:273
6340994113,4cyclictest41-21ksoftirqd/319:35:253
6340994113,3cyclictest41-21ksoftirqd/322:05:203
6340994112,4cyclictest41-21ksoftirqd/323:10:213
633799410,7cyclictest3913-21df_inode22:20:130
633799410,7cyclictest27918-21sshd20:56:120
634099408,4cyclictest41-21ksoftirqd/322:19:593
634099407,4cyclictest41-21ksoftirqd/323:25:013
634099407,4cyclictest41-21ksoftirqd/322:30:203
634099406,3cyclictest41-21ksoftirqd/319:25:233
634099405,9cyclictest41-21ksoftirqd/320:45:163
634099405,4cyclictest41-21ksoftirqd/300:15:173
6340994035,3cyclictest41-21ksoftirqd/320:00:003
6340994035,3cyclictest4083-21fschecks_count20:10:163
6340994028,9cyclictest41-21ksoftirqd/322:25:253
6338994036,2cyclictest5680-21turbostat22:24:591
634099399,8cyclictest41-21ksoftirqd/321:00:213
634099399,7cyclictest41-21ksoftirqd/320:35:013
634099398,9cyclictest41-21ksoftirqd/322:10:123
634099397,4cyclictest41-21ksoftirqd/323:25:153
633899391,35cyclictest3254-21cron00:30:001
633799395,7cyclictest13207-21latency_hist23:45:000
633799390,7cyclictest14366-21irqstats21:35:180
634099388,3cyclictest41-21ksoftirqd/320:25:263
634099386,4cyclictest41-21ksoftirqd/321:10:123
634099385,5cyclictest41-21ksoftirqd/320:05:183
6340993833,3cyclictest41-21ksoftirqd/322:50:003
6340993833,3cyclictest41-21ksoftirqd/319:40:243
6340993832,3cyclictest41-21ksoftirqd/323:15:183
6340993826,10cyclictest41-21ksoftirqd/319:30:233
6340993810,7cyclictest41-21ksoftirqd/323:55:273
633999388,28cyclictest0-21swapper/223:27:042
6339993832,4cyclictest33-21ksoftirqd/222:16:452
6339993832,4cyclictest33-21ksoftirqd/221:50:002
6338993833,3cyclictest23323-21idleruntime-cro20:50:001
6338993832,4cyclictest10604-21dump-pmu-power22:35:011
633799387,6cyclictest9-21ksoftirqd/021:20:220
633799380,8cyclictest13806-21df23:45:140
633799380,7cyclictest8916-21df_inode21:25:120
633799380,7cyclictest29591-21meminfo21:00:200
633799380,7cyclictest28875-21diskstats22:05:130
138491380,1ptp4l401ktimersoftd/323:30:113
634099377,4cyclictest41-21ksoftirqd/322:40:153
634099376,9cyclictest41-21ksoftirqd/321:45:163
634099376,4cyclictest41-21ksoftirqd/319:20:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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