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2026-04-25 - 15:35
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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 Sat Apr 25, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
276872316290,17sleep20-21swapper/207:08:302
277242275247,19sleep10-21swapper/107:08:571
277212260229,20sleep30-21swapper/307:08:563
276392258226,21sleep00-21swapper/007:07:520
187352620,0sleep00-21swapper/011:45:130
167262580,0sleep30-21swapper/309:05:143
42912570,0sleep10-21swapper/112:15:161
93042550,0sleep10-21swapper/111:20:151
110692550,0sleep30-21swapper/309:25:003
280302540,0sleep30-21swapper/309:15:153
256102210,0sleep20-21swapper/210:11:462
164342180,0sleep20-21swapper/211:43:542
134882180,0sleep30-21swapper/311:22:333
173422160,0sleep00-21swapper/012:23:160
152682150,0sleep00-21swapper/011:43:000
115352140,0sleep20-21swapper/210:42:202
282372130,0sleep30-21swapper/311:30:553
272392130,0sleep00-21swapper/009:34:420
310262120,0sleep20-21swapper/212:11:422
2792199119,2cyclictest22-21ksoftirqd/111:45:001
2792199119,1cyclictest22-21ksoftirqd/109:35:001
2792199118,2cyclictest22-21ksoftirqd/107:15:011
27921991110,1cyclictest22-21ksoftirqd/111:30:001
27921991110,1cyclictest22-21ksoftirqd/110:20:011
7552100,0sleep10-21swapper/108:30:121
2792199109,1cyclictest22-21ksoftirqd/112:39:591
2792199109,1cyclictest22-21ksoftirqd/110:45:001
2792199109,1cyclictest22-21ksoftirqd/108:30:011
2792199109,1cyclictest22-21ksoftirqd/107:30:011
2792199107,2cyclictest22-21ksoftirqd/109:30:001
2792199103,4cyclictest22-21ksoftirqd/112:07:411
210652100,1sleep021071-21needreboot12:25:160
279299990,8cyclictest0-21swapper/208:10:122
279219998,1cyclictest22-21ksoftirqd/112:00:011
279219998,1cyclictest22-21ksoftirqd/111:00:001
279219998,1cyclictest22-21ksoftirqd/108:10:011
279219998,1cyclictest22-21ksoftirqd/107:55:011
279219996,2cyclictest22-21ksoftirqd/109:10:011
279219993,3cyclictest560-21gdbus10:40:011
279219990,8cyclictest24535-21ssh09:13:181
25158290,0sleep10-21swapper/110:11:241
7352280,0sleep20-21swapper/209:41:162
279299985,2cyclictest32398-21ssh09:56:182
279219987,1cyclictest22-21ksoftirqd/112:30:001
279219987,1cyclictest22-21ksoftirqd/112:25:001
279219987,1cyclictest22-21ksoftirqd/108:05:011
279219986,2cyclictest22-21ksoftirqd/107:15:021
279219986,1cyclictest22-21ksoftirqd/107:25:011
279219985,2cyclictest22-21ksoftirqd/112:15:011
279219985,2cyclictest22-21ksoftirqd/108:55:131
279219984,2cyclictest22-21ksoftirqd/110:05:021
279219983,3cyclictest11474-21perf08:55:001
279219981,5cyclictest22-21ksoftirqd/111:00:171
279219980,4cyclictest22-21ksoftirqd/111:33:241
279309976,1cyclictest18465-21diskmemload11:14:163
279309974,2cyclictest504-21dbus-daemon11:44:143
279309974,2cyclictest26211-21cron11:50:003
279309974,2cyclictest20609-21ssh12:25:143
279309972,3cyclictest275-21systemd-journal11:35:443
279309970,3cyclictest275-21systemd-journal09:11:433
279299974,2cyclictest504-21dbus-daemon07:39:412
279299973,3cyclictest658-21snmpd08:43:012
279299973,3cyclictest27768-21ntpq11:50:172
279299973,3cyclictest275-21systemd-journal07:47:432
279299973,3cyclictest16602-21cut10:45:182
279299972,3cyclictest275-21systemd-journal10:29:112
279219976,1cyclictest22-21ksoftirqd/111:50:131
279219976,1cyclictest22-21ksoftirqd/111:40:001
279219976,1cyclictest22-21ksoftirqd/111:20:011
279219976,1cyclictest22-21ksoftirqd/110:55:001
279219976,1cyclictest22-21ksoftirqd/110:50:001
279219976,1cyclictest22-21ksoftirqd/110:35:011
279219976,1cyclictest22-21ksoftirqd/109:35:001
279219976,1cyclictest22-21ksoftirqd/109:25:001
279219976,1cyclictest22-21ksoftirqd/108:40:011
279219976,1cyclictest22-21ksoftirqd/107:45:011
279219976,1cyclictest22-21ksoftirqd/107:40:001
279219974,1cyclictest22-21ksoftirqd/109:40:181
279219974,0cyclictest141rcu_preempt11:10:181
279219973,3cyclictest658-21snmpd10:27:561
279219973,3cyclictest275-21systemd-journal12:32:231
279219972,3cyclictest141rcu_preempt10:21:261
279219972,1cyclictest22-21ksoftirqd/109:45:171
279219971,4cyclictest22-21ksoftirqd/110:05:141
279179976,1cyclictest0-21swapper/010:37:380
279179973,3cyclictest658-21snmpd12:18:500
279179973,3cyclictest275-21systemd-journal08:13:450
279179973,3cyclictest18073-21sshd09:05:360
279179973,2cyclictest275-21systemd-journal11:35:570
279179973,1cyclictest0-21swapper/009:26:330
279179970,5cyclictest4861-21idleruntime-cro10:00:020
279179970,4cyclictest4804-21ls08:40:010
279179970,4cyclictest21323-21awk08:05:010
1729270,0sleep30-21swapper/309:38:223
13594270,0sleep00-21swapper/012:01:020
4101260,0sleep30-21swapper/308:35:203
279309966,0cyclictest0-21swapper/309:30:063
279309965,1cyclictest29105-21/usr/sbin/munin12:10:193
279309963,3cyclictest7226-21apt-get10:40:143
279309963,2cyclictest7354-21ssh09:41:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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