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2026-09-06 - 16:47
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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 rackaslot8.osadl.org (updated Sun Sep 06, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246952281251,19sleep20-21swapper/207:09:532
227342271239,21sleep10-21swapper/107:05:091
243922269239,20sleep00-21swapper/007:06:130
227312258227,21sleep30-21swapper/307:05:073
148412600,0sleep30-21swapper/312:39:553
320412580,0sleep20-21swapper/209:39:142
228802580,1sleep222883-21grep08:15:132
205372570,0sleep228-21ksoftirqd/212:24:042
53972560,0sleep20-21swapper/210:00:532
296112560,0sleep10-21swapper/112:29:311
221822530,0sleep30-21swapper/311:27:233
287372170,1sleep20-21swapper/209:17:562
17582170,0sleep30-21swapper/310:36:583
24827991411,2cyclictest28-21ksoftirqd/207:15:022
83372130,0sleep10-21swapper/110:21:541
268862130,0sleep00-21swapper/010:14:170
2483199118,2cyclictest34-21ksoftirqd/311:45:003
24827991110,1cyclictest28-21ksoftirqd/210:55:012
2483199109,1cyclictest34-21ksoftirqd/311:59:593
2483199109,1cyclictest34-21ksoftirqd/307:15:023
2483199108,2cyclictest34-21ksoftirqd/309:50:013
2482799106,1cyclictest271rcuc/208:45:012
4034290,1sleep20-21swapper/211:55:132
248319998,1cyclictest34-21ksoftirqd/312:15:003
248319998,1cyclictest34-21ksoftirqd/310:05:013
248319998,1cyclictest331rcuc/311:00:013
248319998,1cyclictest331rcuc/310:55:013
248319997,2cyclictest34-21ksoftirqd/311:20:003
248319997,1cyclictest34-21ksoftirqd/308:10:013
248319992,5cyclictest34-21ksoftirqd/307:25:193
248319992,3cyclictest4709-21expr07:35:133
248319991,5cyclictest34-21ksoftirqd/311:45:173
248279991,3cyclictest14497-21perf09:10:012
248199996,2cyclictest18826-21ssh12:03:520
248319987,1cyclictest34-21ksoftirqd/310:30:013
248319987,1cyclictest34-21ksoftirqd/310:00:013
248319987,1cyclictest34-21ksoftirqd/308:40:013
248319987,1cyclictest34-21ksoftirqd/308:30:003
248319987,1cyclictest34-21ksoftirqd/307:35:003
248319986,1cyclictest34-21ksoftirqd/308:50:013
248319986,1cyclictest331rcuc/307:50:013
248319983,3cyclictest141rcu_preempt10:46:233
248319983,3cyclictest141rcu_preempt10:43:333
248319982,4cyclictest34-21ksoftirqd/310:06:263
248319982,4cyclictest34-21ksoftirqd/309:40:183
248319982,4cyclictest34-21ksoftirqd/307:40:183
248319982,4cyclictest30023-21ssh09:18:533
248319981,4cyclictest0-21swapper/309:20:183
248279987,1cyclictest28-21ksoftirqd/208:30:012
248279985,2cyclictest28-21ksoftirqd/208:50:012
248229983,3cyclictest7728-21idleruntime-cro09:25:001
248229980,7cyclictest11317-21ssh11:01:411
248199985,2cyclictest9166-21snmpd10:50:030
248199985,2cyclictest10001-21cron09:00:010
248199985,2cyclictest10001-21cron09:00:010
248199984,2cyclictest275-21systemd-journal10:42:440
248199982,3cyclictest32601-21munin-run11:15:000
248319976,1cyclictest34-21ksoftirqd/312:35:003
248319976,1cyclictest34-21ksoftirqd/309:10:013
248319976,1cyclictest34-21ksoftirqd/308:30:013
248319976,1cyclictest34-21ksoftirqd/308:00:013
248319976,1cyclictest34-21ksoftirqd/307:15:023
248319976,1cyclictest331rcuc/312:10:003
248319976,1cyclictest331rcuc/309:00:013
248319976,1cyclictest331rcuc/309:00:013
248319976,1cyclictest331rcuc/308:20:013
248319975,2cyclictest34-21ksoftirqd/309:29:593
248319975,2cyclictest34-21ksoftirqd/308:15:013
248319975,1cyclictest34-21ksoftirqd/307:20:013
248319974,2cyclictest34-21ksoftirqd/308:55:013
248319974,2cyclictest34-21ksoftirqd/308:05:013
248319973,3cyclictest304-21systemd-udevd12:04:313
248319973,1cyclictest34-21ksoftirqd/311:30:153
248319973,1cyclictest141rcu_preempt10:11:243
248319972,3cyclictest34-21ksoftirqd/308:20:133
248319971,4cyclictest34-21ksoftirqd/312:29:023
248319971,4cyclictest34-21ksoftirqd/311:50:143
248319971,4cyclictest34-21ksoftirqd/311:38:513
248319971,4cyclictest34-21ksoftirqd/309:35:153
248319971,4cyclictest34-21ksoftirqd/309:30:153
248319971,4cyclictest331rcuc/311:13:333
248319971,3cyclictest34-21ksoftirqd/310:15:503
248319971,2cyclictest341ksoftirqd/310:20:123
248319970,5cyclictest34-21ksoftirqd/311:05:183
248319970,5cyclictest34-21ksoftirqd/309:10:373
248319970,5cyclictest34-21ksoftirqd/309:00:193
248319970,4cyclictest27135-21kworker/3:111:03:333
248279974,2cyclictest275-21systemd-journal07:23:512
248279974,2cyclictest27325-21cron11:50:002
248279973,1cyclictest14351-21awk10:45:012
248229974,2cyclictest10030-21dump-pmu-power09:00:011
248229974,2cyclictest10030-21dump-pmu-power09:00:001
248229973,3cyclictest9166-21snmpd11:25:311
248229973,3cyclictest9166-21snmpd09:17:451
248229973,3cyclictest504-21dbus-daemon08:05:171
248229973,3cyclictest275-21systemd-journal12:05:071
248229972,3cyclictest9166-21snmpd11:06:311
248229970,3cyclictest31154-21grep07:20:191
248229970,3cyclictest275-21systemd-journal11:35:001
248229970,1cyclictest26569-21awk08:25:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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