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2026-01-07 - 05:28
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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 Jan 07, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89582314289,16sleep20-21swapper/219:05:352
89742285254,21sleep10-21swapper/119:05:461
92382274243,21sleep00-21swapper/019:08:550
90792269237,21sleep30-21swapper/319:06:523
102732680,0sleep20-21swapper/200:18:512
321142670,0sleep30-21swapper/300:30:453
227032630,0sleep00-21swapper/022:16:480
46692620,0sleep30-21swapper/323:01:133
251032610,0sleep00-21swapper/022:55:000
44352580,0sleep20-21swapper/222:06:262
55142560,0sleep00-21swapper/023:57:190
250822560,0sleep30-21swapper/321:24:103
187382560,0sleep00-21swapper/023:09:590
289902530,0sleep30-21swapper/319:50:133
168622510,0sleep00-21swapper/021:37:120
64632220,0sleep30-21swapper/322:44:263
189382180,0sleep30-21swapper/322:50:483
175442150,0sleep10-21swapper/100:04:371
45832140,0sleep00-21swapper/021:12:130
9428991110,1cyclictest28-21ksoftirqd/222:40:002
942899109,1cyclictest28-21ksoftirqd/223:20:002
942899108,2cyclictest28-21ksoftirqd/200:35:002
89612100,0sleep20-21swapper/223:04:152
94339990,2cyclictest21935-21sed00:25:143
94289997,2cyclictest28-21ksoftirqd/222:55:012
94289997,2cyclictest28-21ksoftirqd/219:55:002
94289993,4cyclictest28-21ksoftirqd/221:24:122
94289992,6cyclictest271rcuc/222:55:032
94289992,5cyclictest28-21ksoftirqd/221:44:472
94229997,2cyclictest12-21ksoftirqd/023:49:590
11501290,0sleep10-21swapper/119:13:461
94339982,5cyclictest10873-21expr20:20:163
94289986,2cyclictest28-21ksoftirqd/221:30:012
94289986,2cyclictest28-21ksoftirqd/219:15:012
94289986,1cyclictest28-21ksoftirqd/222:40:012
94289986,1cyclictest28-21ksoftirqd/220:10:002
94289985,2cyclictest28-21ksoftirqd/219:25:012
94289985,1cyclictest28-21ksoftirqd/200:13:212
94289983,3cyclictest28-21ksoftirqd/223:41:322
94289983,3cyclictest141rcu_preempt21:59:192
94289982,4cyclictest31853-21swap21:45:172
94289982,4cyclictest28-21ksoftirqd/223:45:132
94289982,4cyclictest28-21ksoftirqd/223:30:072
94289982,4cyclictest28-21ksoftirqd/222:19:062
94289982,4cyclictest28-21ksoftirqd/220:25:202
94289982,4cyclictest28-21ksoftirqd/200:35:162
94289982,4cyclictest28-21ksoftirqd/200:00:162
94289982,4cyclictest271rcuc/221:11:122
94289982,3cyclictest28-21ksoftirqd/222:25:232
94289982,1cyclictest141rcu_preempt00:23:032
94289981,5cyclictest28-21ksoftirqd/223:21:392
94289981,5cyclictest28-21ksoftirqd/222:00:382
94289981,5cyclictest28-21ksoftirqd/221:30:122
94289981,5cyclictest28-21ksoftirqd/221:16:312
94289981,5cyclictest28-21ksoftirqd/219:17:072
94289981,4cyclictest28-21ksoftirqd/223:55:232
94289981,4cyclictest28-21ksoftirqd/223:13:122
94289980,4cyclictest28-21ksoftirqd/222:46:282
6712280,0sleep00-21swapper/022:25:420
94339974,2cyclictest275-21systemd-journal21:00:003
94339974,2cyclictest16452-21sshd21:36:563
94339973,3cyclictest275-21systemd-journal23:11:413
94339973,3cyclictest275-21systemd-journal22:46:323
94339973,3cyclictest275-21systemd-journal20:34:293
94339973,3cyclictest23058-21ntpq23:30:163
94339972,3cyclictest504-21dbus-daemon19:20:023
94339972,3cyclictest275-21systemd-journal22:12:383
94289976,1cyclictest28-21ksoftirqd/221:05:002
94289975,1cyclictest275-21systemd-journal20:52:492
94289974,2cyclictest28-21ksoftirqd/221:35:002
94289973,1cyclictest28-21ksoftirqd/223:06:242
94289973,1cyclictest28-21ksoftirqd/200:26:312
94289973,1cyclictest141rcu_preempt20:55:192
94289972,3cyclictest28-21ksoftirqd/220:37:232
94289972,3cyclictest28-21ksoftirqd/220:21:582
94289972,3cyclictest28-21ksoftirqd/219:48:312
94289972,3cyclictest25145-21grep19:40:172
94289972,3cyclictest1425-21cron19:29:562
94289972,3cyclictest1425-21cron19:29:562
94289972,1cyclictest141rcu_preempt00:05:012
94289971,4cyclictest30702-21idleruntime21:05:152
94289971,4cyclictest28-21ksoftirqd/223:26:442
94289971,4cyclictest28-21ksoftirqd/219:30:192
94289971,4cyclictest14098-21ssh22:30:152
94289970,5cyclictest0-21swapper/223:51:052
94289970,5cyclictest0-21swapper/222:20:052
94289970,4cyclictest28-21ksoftirqd/222:11:542
94289970,2cyclictest6999-21ssh21:50:132
94259976,1cyclictest0-21swapper/121:22:591
94259974,2cyclictest275-21systemd-journal22:25:121
94259973,3cyclictest658-21snmpd00:09:121
94259973,3cyclictest504-21dbus-daemon22:55:001
94259973,3cyclictest275-21systemd-journal20:36:391
94259972,3cyclictest27589-21turbostat21:00:011
94229973,3cyclictest4487-21awk23:20:140
94229973,3cyclictest275-21systemd-journal19:45:070
333270,0sleep00-21swapper/023:35:340
21817270,0sleep30-21swapper/322:16:123
21625270,0sleep2271rcuc/220:45:122
94339966,0cyclictest0-21swapper/323:06:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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