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2025-11-19 - 05:25
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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
Characteristics of the 100 highest latencies:
System rackcslot6.osadl.org (updated Wed Nov 19, 2025 00:46:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1399062960,1sleep442-21ksoftirqd/419:15:254
13293429644,13sleep60-21swapper/619:09:196
4663962900,0sleep70-21swapper/700:36:097
133183998917,39cyclictest0-21swapper/222:48:132
133183998817,40cyclictest0-21swapper/221:28:132
133183998816,39cyclictest0-21swapper/220:28:142
133183998816,39cyclictest0-21swapper/220:28:142
133183998716,39cyclictest0-21swapper/200:28:142
13104528767,18sleep00-21swapper/019:05:190
133183998617,38cyclictest0-21swapper/220:18:132
13294128642,13sleep40-21swapper/419:09:264
1548732850,0sleep7621rcuc/719:40:197
133183998416,35cyclictest0-21swapper/223:53:132
133174998415,38cyclictest0-21swapper/121:03:131
133183998315,35cyclictest0-21swapper/219:43:142
133174998316,37cyclictest0-21swapper/120:53:141
13278128343,34sleep30-21swapper/319:07:073
13294427943,30sleep70-21swapper/719:09:297
13317499750,39cyclictest0-21swapper/119:33:141
4358162720,0sleep20-21swapper/200:11:362
13279927245,14sleep20-21swapper/219:07:232
3184562710,0sleep010-21ksoftirqd/022:37:070
13285926944,12sleep50-21swapper/519:08:155
2934692680,0sleep60-21swapper/622:16:556
1988022680,0sleep442-21ksoftirqd/420:50:264
1796922680,0sleep20-21swapper/220:20:202
13268226648,12sleep10-21swapper/119:05:451
1344062650,0sleep50-21swapper/519:10:155
1564812340,0sleep6551rcuc/619:45:156
133183993411,0cyclictest0-21swapper/219:53:592
133183993014,15cyclictest0-21swapper/222:08:132
133174993014,15cyclictest0-21swapper/120:43:141
13319899290,28cyclictest401028-21awk23:45:004
13318399285,0cyclictest0-21swapper/220:38:582
133212992711,15cyclictest0-21swapper/623:38:146
133174992727,0cyclictest0-21swapper/100:22:421
2266012260,0sleep00-21swapper/021:23:540
133212992610,15cyclictest0-21swapper/622:28:136
216999250,0rtkit-daemon0-21swapper/623:34:142
13321299259,15cyclictest0-21swapper/622:58:136
13318399259,15cyclictest0-21swapper/223:03:142
13318399258,16cyclictest0-21swapper/219:58:132
13318399250,25cyclictest0-21swapper/223:13:112
4502452240,1sleep442-21ksoftirqd/400:24:374
13321299248,15cyclictest0-21swapper/621:38:146
13321999230,22cyclictest0-21swapper/721:59:027
13321999230,22cyclictest0-21swapper/721:59:027
13321299237,15cyclictest0-21swapper/621:48:136
133206992323,0cyclictest0-21swapper/522:39:225
4468192220,0sleep60-21swapper/600:20:216
133190992221,1cyclictest2107-21gnome-shell22:28:583
13318399221,20cyclictest0-21swapper/220:05:152
133174992221,1cyclictest0-21swapper/120:05:081
133166992221,1cyclictest2107-21gnome-shell20:35:590
3042762210,0sleep00-21swapper/022:25:210
133219992120,1cyclictest0-21swapper/722:28:587
13321299214,16cyclictest0-21swapper/620:38:146
133206992120,1cyclictest2107-21gnome-shell20:09:585
3146662200,0sleep60-21swapper/622:35:056
1783172200,0sleep40-21swapper/420:20:144
13318399200,19cyclictest0-21swapper/200:07:292
133212991919,0cyclictest0-21swapper/623:19:476
133212991918,1cyclictest2107-21gnome-shell19:59:596
13317499193,15cyclictest0-21swapper/100:33:131
133174991918,1cyclictest21-21ksoftirqd/123:12:331
13317499190,19cyclictest0-21swapper/123:36:581
13317499190,19cyclictest0-21swapper/123:19:591
13317499190,0cyclictest0-21swapper/119:46:581
3562472180,0sleep60-21swapper/623:07:566
3072472180,0sleep10-21swapper/122:28:511
2426402180,0sleep10-21swapper/121:35:241
133219991818,0cyclictest0-21swapper/719:49:557
133206991816,1cyclictest2107-21gnome-shell19:49:595
133198991817,1cyclictest0-21swapper/419:43:314
133190991817,1cyclictest35-21ksoftirqd/322:59:373
133190991817,1cyclictest0-21swapper/322:32:583
133183991817,0cyclictest0-21swapper/221:00:162
133174991817,1cyclictest2107-21gnome-shell21:34:591
133174991816,1cyclictest2107-21gnome-shell22:39:581
216999170,1rtkit-daemon2168-21rtkit-daemon20:34:362
133219991716,1cyclictest2107-21gnome-shell22:32:597
133219991716,1cyclictest0-21swapper/720:21:587
13319899172,3cyclictest121rcu_preempt22:27:394
133190991716,1cyclictest331069-21kworker/3:123:01:003
133190991711,5cyclictest1134-21snmpd23:15:153
133174991715,1cyclictest2107-21gnome-shell22:07:581
133166991717,0cyclictest0-21swapper/021:45:150
216999160,1rtkit-daemon2168-21rtkit-daemon21:11:482
216999160,1rtkit-daemon2168-21rtkit-daemon00:33:186
133219991615,1cyclictest0-21swapper/723:22:587
13321299160,1cyclictest0-21swapper/620:03:146
133206991616,0cyclictest0-21swapper/520:37:255
13320699161,1cyclictest121rcu_preempt00:30:145
133198991612,2cyclictest823-21earlyoom23:56:284
133190991615,1cyclictest2107-21gnome-shell23:22:593
133190991615,1cyclictest2107-21gnome-shell22:14:583
133190991615,1cyclictest0-21swapper/323:06:583
13318399168,6cyclictest2166-21packagekitd21:36:142
13317499169,5cyclictest823-21earlyoom22:45:481
13317499160,15cyclictest0-21swapper/122:53:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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