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2026-04-15 - 03:50
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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 Apr 15, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279022287259,19sleep10-21swapper/119:08:091
279452281256,16sleep20-21swapper/219:08:422
279912272241,20sleep00-21swapper/019:09:170
278482262235,18sleep30-21swapper/319:07:273
265612570,0sleep122-21ksoftirqd/121:54:181
260052560,0sleep00-21swapper/023:12:130
189472560,0sleep30-21swapper/322:48:343
53652550,0sleep10-21swapper/100:18:571
137802550,0sleep00-21swapper/019:45:190
22112190,0sleep30-21swapper/300:36:253
79102180,0sleep00-21swapper/021:42:270
23492180,0sleep30-21swapper/322:57:513
210582180,0sleep20-21swapper/221:50:192
267422160,0sleep30-21swapper/323:12:483
192922160,0sleep019291-21rm21:50:010
146092150,0sleep30-21swapper/300:04:583
139152150,0sleep30-21swapper/322:05:333
28158991211,1cyclictest22-21ksoftirqd/121:25:011
28158991211,1cyclictest22-21ksoftirqd/119:15:011
28158991210,2cyclictest22-21ksoftirqd/123:55:001
28158991210,2cyclictest22-21ksoftirqd/123:00:001
2815899118,2cyclictest22-21ksoftirqd/121:40:001
28158991110,1cyclictest22-21ksoftirqd/123:45:001
28158991110,1cyclictest22-21ksoftirqd/119:25:021
28158991110,1cyclictest22-21ksoftirqd/119:15:011
45942100,0chrt0-21swapper/200:38:202
2815899109,1cyclictest22-21ksoftirqd/121:00:001
2815899109,1cyclictest22-21ksoftirqd/120:40:011
2815899108,2cyclictest22-21ksoftirqd/121:30:011
2815899107,2cyclictest22-21ksoftirqd/122:20:011
2815599107,2cyclictest275-21systemd-journal19:25:570
32069290,0sleep20-21swapper/200:15:142
281589998,1cyclictest22-21ksoftirqd/123:55:011
281589998,1cyclictest22-21ksoftirqd/123:30:011
281589998,1cyclictest22-21ksoftirqd/120:45:011
281589998,1cyclictest22-21ksoftirqd/120:10:011
281589997,2cyclictest22-21ksoftirqd/123:30:121
281589997,2cyclictest22-21ksoftirqd/121:35:011
281589993,3cyclictest21114-21ntpq22:10:151
281669984,3cyclictest275-21systemd-journal00:15:003
281639987,1cyclictest18640-21diskmemload22:36:142
281639986,2cyclictest28-21ksoftirqd/221:00:002
281589987,1cyclictest22-21ksoftirqd/120:00:011
281589987,1cyclictest22-21ksoftirqd/120:00:011
281589987,1cyclictest22-21ksoftirqd/119:50:011
281589987,1cyclictest22-21ksoftirqd/119:30:011
281589986,2cyclictest22-21ksoftirqd/122:00:011
281589986,2cyclictest22-21ksoftirqd/121:20:001
281589986,2cyclictest22-21ksoftirqd/119:55:011
281589985,2cyclictest22-21ksoftirqd/121:05:001
281589984,3cyclictest275-21systemd-journal23:20:011
281589983,3cyclictest141rcu_preempt00:31:001
281589982,4cyclictest22-21ksoftirqd/100:00:061
281589981,5cyclictest22-21ksoftirqd/123:13:111
281589981,4cyclictest275-21systemd-journal00:10:001
281589981,3cyclictest22-21ksoftirqd/122:34:351
281589980,5cyclictest22094-21munin-run23:50:001
281559982,3cyclictest6753-21grep00:40:000
27485280,0sleep00-21swapper/021:35:060
281669974,2cyclictest50850irq/136-enp4s0-21:25:003
281669974,2cyclictest501-21in:imuxsock20:35:443
281669973,3cyclictest658-21snmpd21:27:013
281669973,3cyclictest658-21snmpd20:32:063
281669973,3cyclictest30120-21ntpq22:35:163
281669972,4cyclictest22188-21gltestperf22:50:153
281669972,3cyclictest275-21systemd-journal22:30:563
281669972,3cyclictest275-21systemd-journal22:21:143
281669970,7cyclictest0-21swapper/323:35:593
281669970,1cyclictest7833-21ssh23:00:443
281639975,1cyclictest271rcuc/222:15:012
281639972,4cyclictest24767-21ssh22:51:272
281639972,3cyclictest19633-21awk22:10:012
281639970,4cyclictest2473-21dump-pmu-power20:35:012
281589976,1cyclictest22-21ksoftirqd/120:15:011
281589976,1cyclictest22-21ksoftirqd/119:45:011
281589976,1cyclictest22-21ksoftirqd/100:30:011
281589976,1cyclictest211rcuc/121:45:011
281589974,2cyclictest22-21ksoftirqd/120:50:011
281589974,1cyclictest22-21ksoftirqd/100:35:141
281589973,3cyclictest22-21ksoftirqd/122:25:131
281589973,1cyclictest141rcu_preempt23:20:161
281589973,1cyclictest141rcu_preempt23:00:141
281589972,1cyclictest22-21ksoftirqd/122:38:431
281589972,1cyclictest22-21ksoftirqd/122:20:071
281589971,4cyclictest211rcuc/122:02:311
281589971,3cyclictest5729-21munin-run23:40:001
281589971,3cyclictest22-21ksoftirqd/123:07:121
281589971,3cyclictest22-21ksoftirqd/122:40:131
281589970,4cyclictest22-21ksoftirqd/122:05:141
281589970,4cyclictest13106-21ssh22:45:131
281559973,3cyclictest4676-21ssh00:18:250
281559973,3cyclictest14677-21dump-pmu-power00:05:000
281559973,1cyclictest12307-21munin-run19:45:010
281559970,6cyclictest28752-21df19:10:130
22408270,0sleep30-21swapper/300:29:363
30528260,0sleep00-21swapper/023:35:110
281669966,0cyclictest0-21swapper/300:21:343
281669966,0cyclictest0-21swapper/300:21:343
281669964,1cyclictest1649-21gltestperf19:20:153
281669963,2cyclictest658-21snmpd20:10:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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