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2026-04-20 - 14:38
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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 rack0slot0.osadl.org (updated Mon Apr 20, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1277221190,3sleep51620799cyclictest10:05:255
265912820,1sleep30-21swapper/311:35:303
219352820,0sleep00-21swapper/012:35:220
190332820,4sleep71621999cyclictest09:43:227
190332820,4sleep71621999cyclictest09:43:227
197352800,1sleep40-21swapper/411:06:374
140952800,1sleep50-21swapper/509:28:555
232512770,0sleep20-21swapper/211:16:302
13372770,1sleep20-21swapper/211:32:012
175002750,0sleep20-21swapper/212:02:132
29882740,2sleep40-21swapper/411:27:384
25682730,0sleep70-21swapper/711:36:477
160132720,0sleep00-21swapper/012:06:370
154892720,0sleep50-21swapper/511:38:445
262512700,0sleep60-21swapper/611:30:536
261892700,0sleep50-21swapper/512:31:175
186972700,0sleep20-21swapper/210:06:182
173732700,1sleep60-21swapper/610:06:066
111602670,0sleep3401rcuc/310:32:553
166902660,0sleep60-21swapper/611:10:496
166902660,0sleep60-21swapper/611:10:496
71142620,1sleep451-21ksoftirqd/410:18:374
162472600,4sleep41620299cyclictest11:52:464
1586926049,7sleep10-21swapper/107:09:021
52272590,0sleep40-21swapper/412:33:014
171602590,4sleep61621299cyclictest10:10:396
1589725848,6sleep70-21swapper/707:09:257
299492570,3sleep31619399cyclictest09:54:173
185572570,0sleep30-21swapper/309:24:593
217112540,0sleep20-21swapper/210:34:312
1570725130,6sleep60-21swapper/607:06:596
1570425141,6sleep30-21swapper/307:06:573
1570125141,6sleep00-21swapper/007:06:530
1558224826,7sleep20-21swapper/207:05:262
1581924434,6sleep50-21swapper/507:08:265
1593024231,7sleep40-21swapper/407:09:454
86602330,0sleep78661-21grep11:14:357
86602330,0sleep78661-21grep11:14:357
173332280,0sleep10-21swapper/112:39:311
244972270,1sleep4501ktimersoftd/411:44:454
159522260,6sleep20-21swapper/210:38:162
37212250,1sleep50-21swapper/512:14:185
198152250,0sleep50-21swapper/509:52:425
1617699230,1cyclictest0-21swapper/008:56:380
253512220,1sleep4491rcuc/411:21:294
272852210,1sleep6681-21dbus-daemon12:08:186
54742200,0sleep60-21swapper/611:23:226
1618999200,19cyclictest0-21swapper/209:10:032
1617699200,1cyclictest0-21swapper/009:00:220
1617699200,1cyclictest0-21swapper/008:50:200
190692190,1sleep3411ktimersoftd/309:11:053
180102190,1sleep4501ktimersoftd/411:39:074
77642180,1sleep1231ktimersoftd/109:50:531
37022180,0sleep7761rcuc/711:55:307
29352180,0sleep00-21swapper/011:13:400
29352180,0sleep00-21swapper/011:13:390
210312180,0sleep30-21swapper/312:25:553
1620299180,1cyclictest0-21swapper/409:43:594
1620299180,1cyclictest0-21swapper/409:43:594
113892180,1sleep611391-21bash11:00:466
43632170,0sleep40-21swapper/412:37:344
297242170,3sleep41620299cyclictest09:35:344
297242170,3sleep41620299cyclictest09:35:344
274882170,0sleep00-21swapper/010:16:490
216012170,3sleep7771ktimersoftd/709:30:007
189462170,1sleep018950-21latency08:20:140
1620299170,12cyclictest0-21swapper/409:16:024
140112170,0sleep40-21swapper/411:20:014
109482170,1sleep30-21swapper/310:14:353
96122160,0sleep10-21swapper/112:29:051
292832160,1sleep10-21swapper/109:49:341
292832160,1sleep10-21swapper/109:49:341
267882160,1sleep2311rcuc/212:08:142
16212991612,2cyclictest0-21swapper/609:43:476
16212991612,2cyclictest0-21swapper/609:43:476
16202991610,1cyclictest0-21swapper/410:13:504
1620299160,11cyclictest0-21swapper/410:03:214
1618999160,1cyclictest0-21swapper/212:36:072
1617699160,1cyclictest0-21swapper/008:50:000
1621299150,2cyclictest6797-21bash11:28:136
1621299150,2cyclictest1451-21sshd10:45:196
16202991511,2cyclictest681-21dbus-daemon10:20:414
1619399151,12cyclictest0-21swapper/310:57:343
16189991511,2cyclictest0-21swapper/211:37:002
1618299150,2cyclictest0-21swapper/112:06:381
51892140,1sleep5581rcuc/511:14:005
51892140,1sleep5581rcuc/511:14:005
171362140,0sleep0121rcuc/010:43:010
16219991412,1cyclictest0-21swapper/711:20:507
16219991411,1cyclictest0-21swapper/710:06:467
1621999140,1cyclictest0-21swapper/711:31:527
1621999140,13cyclictest960-21sshd10:31:227
1621999140,13cyclictest0-21swapper/710:01:007
1621999140,12cyclictest0-21swapper/709:47:177
1621999140,12cyclictest0-21swapper/709:47:177
16212991410,3cyclictest0-21swapper/611:53:286
1621299140,1cyclictest0-21swapper/610:23:426
1620799140,2cyclictest0-21swapper/512:19:585
16193991411,2cyclictest0-21swapper/311:41:153
16193991411,2cyclictest0-21swapper/311:14:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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