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2025-08-27 - 14:38
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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 Wed Aug 27, 2025 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
243572307273,21sleep20-21swapper/219:09:542
243412284255,18sleep10-21swapper/119:09:411
241432271240,20sleep00-21swapper/019:07:080
240402265229,23sleep30-21swapper/319:06:053
326912660,0sleep20-21swapper/200:11:012
219502630,0sleep20-21swapper/223:14:192
72922620,0sleep20-21swapper/221:28:152
9702530,0sleep20-21swapper/222:58:472
204232140,0sleep00-21swapper/020:10:170
271852130,0sleep20-21swapper/222:54:142
24472991210,1cyclictest22-21ksoftirqd/100:20:001
128152120,0sleep10-21swapper/123:30:201
2447899119,1cyclictest34-21ksoftirqd/321:20:003
282042100,0sleep10-21swapper/119:15:171
2447899109,1cyclictest34-21ksoftirqd/323:25:013
2447299107,2cyclictest22-21ksoftirqd/123:30:011
2447299105,1cyclictest141rcu_preempt22:25:151
244789998,1cyclictest34-21ksoftirqd/323:45:003
244789998,1cyclictest34-21ksoftirqd/321:40:013
244789997,1cyclictest34-21ksoftirqd/319:55:003
244789997,1cyclictest34-21ksoftirqd/319:15:013
244789996,2cyclictest28319-21ssh22:06:473
244789991,5cyclictest141rcu_preempt00:30:093
244729998,1cyclictest22-21ksoftirqd/119:15:011
7422280,0sleep00-21swapper/023:03:200
244789987,1cyclictest34-21ksoftirqd/319:15:023
244789986,2cyclictest34-21ksoftirqd/320:35:013
244789986,1cyclictest34-21ksoftirqd/320:10:003
244789983,3cyclictest34-21ksoftirqd/323:00:493
244789983,3cyclictest19982-21systemd-journal21:43:583
244789983,3cyclictest141rcu_preempt23:15:533
244789983,1cyclictest34-21ksoftirqd/322:56:083
244789983,1cyclictest141rcu_preempt23:34:103
244789983,1cyclictest141rcu_preempt22:50:463
244789982,4cyclictest34-21ksoftirqd/323:45:053
244789982,4cyclictest34-21ksoftirqd/323:10:473
244789982,4cyclictest34-21ksoftirqd/323:06:433
244789982,4cyclictest34-21ksoftirqd/322:33:193
244789982,4cyclictest34-21ksoftirqd/322:15:423
244789982,4cyclictest34-21ksoftirqd/321:52:133
244789982,4cyclictest34-21ksoftirqd/321:26:463
244789982,4cyclictest34-21ksoftirqd/300:15:583
244789982,4cyclictest0-21swapper/320:35:173
244789982,3cyclictest34-21ksoftirqd/321:47:013
244789982,2cyclictest34-21ksoftirqd/321:30:183
244789981,5cyclictest34-21ksoftirqd/323:55:493
244789981,5cyclictest34-21ksoftirqd/323:37:073
244789981,5cyclictest34-21ksoftirqd/322:42:083
244789981,5cyclictest34-21ksoftirqd/322:10:413
244789981,5cyclictest34-21ksoftirqd/322:04:083
244789981,5cyclictest34-21ksoftirqd/321:56:033
244789981,5cyclictest34-21ksoftirqd/321:22:443
244789981,5cyclictest34-21ksoftirqd/300:11:243
244789981,5cyclictest34-21ksoftirqd/300:01:583
244789981,5cyclictest0-21swapper/300:06:463
244789981,4cyclictest34-21ksoftirqd/322:29:003
244789981,4cyclictest34-21ksoftirqd/300:29:533
244789981,4cyclictest0-21swapper/320:45:193
244789981,2cyclictest508-21dbus-daemon19:59:143
244789980,6cyclictest0-21swapper/322:46:003
244789980,4cyclictest34-21ksoftirqd/323:29:093
244789980,1cyclictest5760-21apt-get23:50:133
244749985,2cyclictest508-21dbus-daemon22:05:142
244749984,3cyclictest24109-21sshd00:31:192
244749984,3cyclictest19982-21systemd-journal22:11:542
244749984,3cyclictest19038-40find00:00:002
244749983,3cyclictest19982-21systemd-journal20:18:012
244749980,7cyclictest23635-21ssh00:03:392
244729987,1cyclictest22-21ksoftirqd/123:40:001
244729987,1cyclictest22-21ksoftirqd/121:20:011
244729986,2cyclictest22-21ksoftirqd/122:20:171
244729984,3cyclictest19982-21systemd-journal22:55:281
244729983,3cyclictest19982-21systemd-journal20:04:151
244729983,1cyclictest22-21ksoftirqd/121:45:201
244729981,4cyclictest16013-21perf21:35:001
244729981,1cyclictest141rcu_preempt00:31:151
244729980,5cyclictest21386-21sleep22:50:011
244679984,3cyclictest19982-21systemd-journal22:58:130
244679984,3cyclictest17514-21cron20:05:000
244679981,4cyclictest12244-21grep21:05:010
244679980,1cyclictest5036-21hddtemp_smartct23:25:180
11506280,0sleep20-21swapper/223:30:132
9066270,0sleep10-21swapper/121:53:141
31146270,0sleep00-21swapper/019:20:200
244789976,1cyclictest331rcuc/300:35:203
244789974,1cyclictest141rcu_preempt22:20:183
244789972,3cyclictest34-21ksoftirqd/320:28:463
244789972,3cyclictest34-21ksoftirqd/320:24:453
244789972,3cyclictest34-21ksoftirqd/319:40:043
244789972,3cyclictest0-21swapper/320:15:233
244789972,1cyclictest34-21ksoftirqd/319:25:163
244789971,4cyclictest34-21ksoftirqd/320:00:203
244789971,4cyclictest34-21ksoftirqd/319:35:133
244789971,4cyclictest0-21swapper/321:10:423
244789970,4cyclictest0-21swapper/322:35:013
244789970,1cyclictest10074-21apt-get00:20:123
244749976,1cyclictest281ksoftirqd/219:55:002
244749975,1cyclictest0-21swapper/222:27:392
244749974,2cyclictest508-21dbus-daemon00:05:242
244749973,3cyclictest19982-21systemd-journal00:19:552
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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