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2026-09-06 - 21:27
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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 rack3slot0.osadl.org (updated Sun Sep 06, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246652750,2sleep01544799cyclictest09:07:320
186092510,0sleep20-21swapper/211:32:232
1505724937,9sleep30-21swapper/307:01:333
205542480,0sleep40-21swapper/410:14:084
97122470,6sleep557-21ksoftirqd/512:28:575
36292470,0sleep7711rcuc/712:14:497
281582470,0sleep40-21swapper/412:34:004
134402470,7sleep213550irq/24-ahci[00010:50:502
5002460,0sleep50-21swapper/509:59:115
1502124424,16sleep50-21swapper/507:01:035
73202430,2sleep21546599cyclictest10:11:182
33462430,0sleep30-21swapper/309:43:403
244302430,0sleep10-21swapper/109:46:501
289832420,2sleep51548999cyclictest10:24:265
1500324229,9sleep70-21swapper/707:00:497
1499124229,9sleep40-21swapper/407:00:384
128482420,0sleep30-21swapper/312:05:243
79852410,0sleep10-21swapper/109:22:231
313032410,1sleep231301-21sshd11:09:402
240162410,2sleep01544799cyclictest10:37:510
237042410,1sleep323687-21rm12:19:583
20842410,0sleep00-21swapper/010:05:070
168472410,1sleep116848-21grepconf.sh09:58:111
1513224130,8sleep20-21swapper/207:02:362
1509224129,8sleep00-21swapper/007:02:020
136062410,0sleep70-21swapper/709:38:237
118972410,0sleep10-21swapper/109:28:321
65982400,0sleep10-21swapper/111:17:561
254392400,0sleep10-21swapper/110:28:071
218852400,1sleep2311rcuc/210:49:302
1516724029,8sleep60-21swapper/607:03:046
1508224029,8sleep10-21swapper/107:01:551
51982380,0sleep00-21swapper/011:10:020
189482380,0sleep30-21swapper/309:28:583
117532380,2sleep01544799cyclictest10:31:100
297312370,0sleep00-21swapper/009:56:580
1547399228,1cyclictest41-21ksoftirqd/309:34:533
1547399219,1cyclictest41-21ksoftirqd/312:15:493
1547399219,1cyclictest41-21ksoftirqd/309:19:543
1547399217,1cyclictest41-21ksoftirqd/312:31:143
1547399214,1cyclictest41-21ksoftirqd/311:07:393
15455992117,3cyclictest25-21ksoftirqd/111:51:491
15455992116,3cyclictest25-21ksoftirqd/109:14:121
1547399206,2cyclictest41-21ksoftirqd/311:39:343
1547399206,1cyclictest41-21ksoftirqd/310:45:073
15473992016,3cyclictest41-21ksoftirqd/309:47:163
1222822013,3sleep773-21ksoftirqd/710:23:257
1547399197,5cyclictest41-21ksoftirqd/310:42:403
1547399196,2cyclictest41-21ksoftirqd/310:23:513
1547399195,4cyclictest41-21ksoftirqd/309:08:583
1547399194,3cyclictest41-21ksoftirqd/311:15:133
1547399194,3cyclictest41-21ksoftirqd/310:51:033
1547399194,1cyclictest41-21ksoftirqd/310:06:353
15473991913,4cyclictest41-21ksoftirqd/310:16:233
15473991913,4cyclictest41-21ksoftirqd/309:59:353
15473991912,4cyclictest41-21ksoftirqd/312:01:183
15455991917,1cyclictest25-21ksoftirqd/110:30:391
15455991915,1cyclictest25-21ksoftirqd/111:31:121
15455991914,3cyclictest25-21ksoftirqd/111:56:471
106452190,0sleep50-21swapper/511:10:165
68202180,1sleep66811-21bash12:10:556
1547399188,1cyclictest41-21ksoftirqd/311:52:493
1547399187,2cyclictest41-21ksoftirqd/309:50:393
1547399187,1cyclictest41-21ksoftirqd/309:10:003
1547399186,2cyclictest41-21ksoftirqd/310:39:183
1547399186,1cyclictest41-21ksoftirqd/311:59:483
1547399186,1cyclictest41-21ksoftirqd/311:04:243
15473991816,1cyclictest41-21ksoftirqd/310:59:303
15473991816,1cyclictest41-21ksoftirqd/309:15:063
15473991814,3cyclictest41-21ksoftirqd/310:26:323
15473991814,3cyclictest41-21ksoftirqd/310:10:013
1547399180,2cyclictest131rcu_sched10:31:313
15455991817,1cyclictest25-21ksoftirqd/110:01:141
15455991816,1cyclictest25-21ksoftirqd/112:27:001
15455991816,1cyclictest25-21ksoftirqd/111:22:081
15455991816,1cyclictest25-21ksoftirqd/110:49:251
15455991816,1cyclictest25-21ksoftirqd/110:41:001
15455991816,1cyclictest25-21ksoftirqd/109:18:421
15455991813,3cyclictest25-21ksoftirqd/111:39:351
215152170,0sleep40-21swapper/409:30:594
15481991714,3cyclictest49-21ksoftirqd/410:18:564
1547399175,3cyclictest41-21ksoftirqd/311:10:063
1547399175,3cyclictest41-21ksoftirqd/309:37:393
15473991712,1cyclictest41-21ksoftirqd/311:45:053
1547399170,2cyclictest121rcu_preempt12:26:473
15465991715,1cyclictest33-21ksoftirqd/211:03:022
15455991716,1cyclictest25-21ksoftirqd/112:11:341
15455991716,1cyclictest25-21ksoftirqd/109:30:481
15455991715,1cyclictest25-21ksoftirqd/112:05:221
15455991715,1cyclictest25-21ksoftirqd/111:41:121
15455991715,1cyclictest25-21ksoftirqd/111:11:491
15455991715,1cyclictest25-21ksoftirqd/110:15:411
15455991715,1cyclictest25-21ksoftirqd/109:51:141
15455991714,3cyclictest25-21ksoftirqd/110:59:551
15455991714,2cyclictest25-21ksoftirqd/110:10:021
15455991712,1cyclictest121rcu_preempt09:39:001
107072170,0sleep30-21swapper/310:03:423
38792160,0sleep70-21swapper/712:28:347
28072160,0sleep60-21swapper/611:02:006
15481991615,1cyclictest49-21ksoftirqd/410:55:054
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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