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2026-05-07 - 15:46
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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 Thu May 07, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166752293263,19sleep20-21swapper/207:07:082
168402271239,21sleep10-21swapper/107:09:161
167612266235,20sleep00-21swapper/007:08:140
167742256224,22sleep30-21swapper/307:08:273
294572630,0sleep2271rcuc/212:36:062
26602620,0sleep00-21swapper/009:45:190
217772590,0sleep10-21swapper/110:35:171
207812590,0sleep30-21swapper/311:32:543
61132580,0sleep20-21swapper/207:55:012
27102580,0sleep20-21swapper/212:00:262
240872580,0sleep00-21swapper/009:39:290
309892550,0sleep10-21swapper/112:17:591
114002550,0sleep10-21swapper/111:27:061
221602210,0sleep00-21swapper/010:15:580
276542180,0sleep20-21swapper/210:58:322
21252180,0sleep20-21swapper/207:45:122
158542180,0sleep00-21swapper/009:53:480
212122150,0sleep00-21swapper/011:52:320
48532140,0sleep30-21swapper/312:21:233
323382130,0sleep20-21swapper/209:44:242
153972130,0sleep30-21swapper/310:50:323
54662120,0sleep20-21swapper/209:27:592
184142120,0sleep30-21swapper/311:11:503
17003991210,1cyclictest12-21ksoftirqd/007:30:000
1700399114,1cyclictest141rcu_preempt07:35:120
1700399111,3cyclictest12-21ksoftirqd/007:10:130
17003991110,1cyclictest12-21ksoftirqd/009:20:000
1700399109,1cyclictest12-21ksoftirqd/011:50:010
1700399109,1cyclictest12-21ksoftirqd/010:35:000
1700399109,1cyclictest12-21ksoftirqd/007:35:000
1700399108,1cyclictest12-21ksoftirqd/012:15:000
1700399107,2cyclictest12-21ksoftirqd/008:25:010
112502100,0sleep30-21swapper/311:07:583
22142290,0sleep20-21swapper/209:18:412
170069994,3cyclictest275-21systemd-journal09:20:411
170039998,1cyclictest12-21ksoftirqd/010:40:000
170039998,1cyclictest12-21ksoftirqd/010:10:010
170039998,1cyclictest12-21ksoftirqd/009:45:010
170039998,1cyclictest12-21ksoftirqd/009:25:000
170039996,2cyclictest14375-21sh09:33:260
170039993,4cyclictest12-21ksoftirqd/012:30:190
170039990,1cyclictest0-21swapper/007:55:130
12880290,1sleep2141rcu_preempt10:50:002
170159980,7cyclictest29589-21ssh12:16:553
170119986,1cyclictest19179-21apt07:15:002
170069980,3cyclictest275-21systemd-journal11:55:011
170039987,1cyclictest12-21ksoftirqd/010:50:010
170039986,1cyclictest12-21ksoftirqd/012:10:000
170039986,1cyclictest12-21ksoftirqd/009:15:000
170039986,1cyclictest12-21ksoftirqd/008:35:010
170039984,1cyclictest6841-21munin-run11:25:000
24552270,2sleep334-21ksoftirqd/312:14:293
170159975,1cyclictest34-21ksoftirqd/308:35:013
170159974,2cyclictest275-21systemd-journal07:14:123
170159973,3cyclictest27377-21cron10:20:013
170159972,4cyclictest658-21snmpd11:59:383
170119974,2cyclictest504-21dbus-daemon08:23:552
170119973,3cyclictest658-21snmpd12:17:182
170119973,3cyclictest275-21systemd-journal12:30:582
170119973,3cyclictest11143-21ntpq12:25:162
170119973,3cyclictest0-21swapper/210:00:472
170119970,3cyclictest65850snmpd09:10:392
170119970,1cyclictest1670-21ssh10:23:452
170069974,2cyclictest8073-21diskstats09:10:131
170069973,3cyclictest658-21snmpd07:55:341
170069972,3cyclictest22552-21idleruntime-cro11:15:011
170069971,4cyclictest16432-21perf09:35:001
170069971,3cyclictest19869-21ls10:35:001
170069970,4cyclictest21491-21munin-run08:30:011
170039976,1cyclictest12-21ksoftirqd/011:45:010
170039976,1cyclictest12-21ksoftirqd/010:25:010
170039976,1cyclictest12-21ksoftirqd/009:10:010
170039976,1cyclictest12-21ksoftirqd/009:05:010
170039976,1cyclictest12-21ksoftirqd/008:50:000
170039976,1cyclictest12-21ksoftirqd/008:40:000
170039976,1cyclictest12-21ksoftirqd/008:30:010
170039976,1cyclictest12-21ksoftirqd/007:15:020
170039975,2cyclictest12-21ksoftirqd/010:45:000
170039975,2cyclictest12-21ksoftirqd/007:25:000
170039975,1cyclictest12-21ksoftirqd/008:55:000
170039974,2cyclictest15300-21ssh10:12:190
170039974,1cyclictest141rcu_preempt08:55:020
170039973,3cyclictest10022-21sshd11:26:030
170039973,2cyclictest275-21systemd-journal08:00:150
170039973,1cyclictest12-21ksoftirqd/011:10:000
170039972,2cyclictest8127-21dump-pmu-power09:30:000
170039972,0cyclictest12-21ksoftirqd/011:58:120
170039971,1cyclictest141rcu_preempt11:35:000
170039970,4cyclictest0-21swapper/011:18:520
170039970,3cyclictest1725-21ssh12:20:100
16290270,0sleep122-21ksoftirqd/111:50:011
14370270,0sleep20-21swapper/212:08:042
20882260,0sleep10-21swapper/112:30:531
170159964,1cyclictest3596-21hddtemp_smartct09:00:133
170159963,2cyclictest658-21snmpd08:49:183
170159963,2cyclictest6133-21ssh10:06:433
170159963,2cyclictest501-21in:imuxsock11:50:023
170159963,2cyclictest31344-21ssh10:40:453
170159963,2cyclictest27996-21rm09:21:463
170159963,2cyclictest26989-21ssh10:38:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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