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2026-09-17 - 22:20
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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 rack4slot6.osadl.org (updated Thu Sep 17, 2026 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3438521440,135pltrace0-21swapper/107:05:141
3438521260,118pltrace0-21swapper/607:05:256
3438521240,116pltrace0-21swapper/207:05:152
3438521130,109pltrace0-21swapper/507:05:055
3438521110,103pltrace0-21swapper/707:05:117
8217521090,0pltrace0-21swapper/008:09:210
343852950,91pltrace0-21swapper/307:06:293
1953352910,0pltrace0-21swapper/312:29:233
160312830,0sleep50-21swapper/509:15:135
160312830,0sleep50-21swapper/509:15:135
2810452600,1pltrace601rcuc/511:34:225
602725945,10sleep00-21swapper/007:06:510
598525941,13sleep40-21swapper/407:06:134
1954952560,3pltrace0-21swapper/710:58:337
111122480,0sleep30-21swapper/311:49:363
753652430,9pltrace78-21ksoftirqd/709:41:197
2952852420,7pltrace78-21ksoftirqd/709:30:507
1953352420,0pltrace0-21swapper/712:30:357
301272410,1sleep00-21swapper/011:35:150
1766852380,7pltrace78-21ksoftirqd/709:49:237
1281852380,0pltrace0-21swapper/711:20:207
6499993735,1cyclictest0-21swapper/510:45:005
232352370,6pltrace0-21swapper/709:38:597
183902360,0sleep3441rcuc/311:25:003
2434552340,0pltrace0-21swapper/709:25:387
943052330,2pltrace0-21swapper/612:19:246
650699330,1cyclictest78-21ksoftirqd/710:09:547
650499330,1cyclictest0-21swapper/610:09:536
48152330,0sleep30-21swapper/311:42:393
929652320,8pltrace78-21ksoftirqd/709:10:077
929652320,8pltrace78-21ksoftirqd/709:10:077
3143652320,7pltrace78-21ksoftirqd/712:12:537
210782310,1sleep60-21swapper/609:51:126
1271252310,2pltrace0-21swapper/707:20:227
2967352300,3pltrace0-21swapper/711:04:297
2625852300,0pltrace0-21swapper/712:08:027
225072300,0sleep00-21swapper/010:55:250
369152280,2pltrace0-21swapper/709:00:207
1766852280,2pltrace0-21swapper/709:50:297
1954952270,0pltrace0-21swapper/710:54:377
6499992625,1cyclictest0-21swapper/511:05:005
2990552260,8pltrace78-21ksoftirqd/712:39:467
2804952260,0pltrace0-21swapper/109:59:231
650699240,16cyclictest0-21swapper/711:11:357
649099241,12cyclictest0-21swapper/310:17:173
1936352230,0pltrace0-21swapper/708:30:127
2133352220,6pltrace78-21ksoftirqd/712:02:177
6504992119,1cyclictest681rcuc/610:45:006
647899213,17cyclictest0-21swapper/011:51:040
6478992016,1cyclictest1437352pltrace10:50:300
2772552200,0pltrace0-21swapper/708:45:107
2107252200,3pltrace0-21swapper/707:35:127
762352180,12pltrace0-21swapper/211:14:252
6486991815,2cyclictest0-21swapper/209:49:322
648199180,17cyclictest7154-21wc08:05:161
1773252180,13pltrace21588-21ssh11:27:021
6506991712,2cyclictest0-21swapper/709:21:577
650699170,2cyclictest0-21swapper/711:15:147
6504991711,5cyclictest0-21swapper/610:48:366
650499171,8cyclictest0-21swapper/611:23:556
6499991711,5cyclictest0-21swapper/509:06:125
6495991712,3cyclictest0-21swapper/409:00:394
648699170,16cyclictest0-21swapper/210:55:492
6481991711,5cyclictest0-21swapper/107:20:131
648199171,15cyclictest0-21swapper/112:38:431
648199170,14cyclictest9002-21sshd09:05:311
1828452170,0pltrace0-21swapper/707:34:197
650699161,14cyclictest0-21swapper/708:39:027
650699160,4cyclictest0-21swapper/708:06:047
6504991611,3cyclictest0-21swapper/611:02:006
6504991611,3cyclictest0-21swapper/608:52:386
6504991611,3cyclictest0-21swapper/608:43:326
6504991610,5cyclictest0-21swapper/611:35:226
650499161,3cyclictest0-21swapper/607:21:276
650499161,14cyclictest0-21swapper/607:15:326
650499160,4cyclictest0-21swapper/608:02:526
650499160,15cyclictest0-21swapper/612:10:016
6499991613,3cyclictest0-21swapper/508:05:465
6499991611,4cyclictest0-21swapper/507:43:515
6499991611,3cyclictest0-21swapper/508:23:495
6499991610,5cyclictest0-21swapper/507:38:335
649999160,4cyclictest0-21swapper/511:45:235
649599160,4cyclictest0-21swapper/412:22:334
649099161,8cyclictest0-21swapper/308:59:313
649099160,15cyclictest0-21swapper/308:30:003
648699161,8cyclictest0-21swapper/212:27:572
648699161,7cyclictest0-21swapper/210:28:042
6481991611,3cyclictest0-21swapper/111:59:211
6481991611,3cyclictest0-21swapper/111:59:211
6481991611,3cyclictest0-21swapper/110:44:011
648199160,15cyclictest4290-21missed_timers08:00:151
648199160,15cyclictest0-21swapper/110:17:001
6478991613,2cyclictest0-21swapper/010:16:300
6478991610,4cyclictest0-21swapper/008:46:590
647899161,4cyclictest0-21swapper/011:13:290
647899161,4cyclictest0-21swapper/008:13:590
647899161,14cyclictest0-21swapper/011:34:230
647899161,14cyclictest0-21swapper/009:31:370
577052160,12pltrace0-21swapper/210:09:492
577052160,1pltrace0-21swapper/010:10:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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