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2026-07-31 - 02:01
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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 rack7slot1.osadl.org (updated Thu Jul 30, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8665212565,20sleep30-21swapper/319:08:513
7590211450,57sleep10-21swapper/119:05:191
8444210250,20sleep00-21swapper/019:06:140
685728459,20sleep20-21swapper/219:05:072
158512750,1sleep230195-21stress23:02:302
158512750,1sleep230195-21stress23:02:302
8871994414,27cyclictest0-21swapper/022:11:270
887199429,30cyclictest0-21swapper/022:52:080
8871994216,24cyclictest0-21swapper/023:17:110
8871994210,14cyclictest0-21swapper/023:50:390
8872994112,18cyclictest0-21swapper/123:11:011
8871994112,26cyclictest0-21swapper/023:02:110
8871994112,26cyclictest0-21swapper/023:02:110
8871994015,22cyclictest0-21swapper/022:05:190
8871994014,23cyclictest0-21swapper/022:44:090
8871994012,25cyclictest0-21swapper/021:23:150
8871994012,25cyclictest0-21swapper/021:23:150
8871994011,26cyclictest0-21swapper/021:51:180
8871994011,26cyclictest0-21swapper/021:51:180
247032400,1sleep330195-21stress23:23:203
8871993911,26cyclictest0-21swapper/021:36:250
8873993812,23cyclictest0-21swapper/222:13:402
887299386,20cyclictest0-21swapper/123:45:111
8871993816,15cyclictest0-21swapper/000:12:020
8871993810,26cyclictest0-21swapper/022:57:450
56072385,13sleep10-21swapper/120:11:401
55562385,13sleep00-21swapper/020:10:590
287292385,13sleep10-21swapper/121:05:181
225432385,13sleep10-21swapper/119:37:121
168222385,13sleep30-21swapper/320:38:483
165382385,13sleep20-21swapper/220:35:272
887299379,25cyclictest0-21swapper/121:49:321
887299379,25cyclictest0-21swapper/121:49:311
887299378,26cyclictest0-21swapper/123:43:291
887299376,28cyclictest0-21swapper/122:33:481
887299376,28cyclictest0-21swapper/122:27:351
887299376,28cyclictest0-21swapper/122:27:341
8871993716,19cyclictest0-21swapper/000:00:170
8871993714,18cyclictest0-21swapper/021:05:460
8871993711,23cyclictest0-21swapper/022:20:160
297242375,13sleep20-21swapper/221:05:342
290892375,13sleep20-21swapper/219:51:532
269182375,13sleep20-21swapper/219:46:502
254412375,13sleep00-21swapper/020:56:460
212212375,13sleep20-21swapper/220:48:512
209462375,13sleep00-21swapper/020:45:320
202762375,13sleep00-21swapper/019:31:290
189882375,13sleep30-21swapper/320:43:263
180412375,13sleep20-21swapper/219:25:462
142392375,13sleep00-21swapper/019:20:070
135872375,13sleep20-21swapper/219:15:322
122632375,13sleep30-21swapper/320:27:063
8873993613,21cyclictest0-21swapper/223:53:362
887299366,27cyclictest0-21swapper/100:03:411
887199369,20cyclictest0-21swapper/020:05:270
887199365,24cyclictest0-21swapper/019:15:290
8871993616,17cyclictest0-21swapper/022:33:310
8871993615,14cyclictest0-21swapper/023:05:230
8871993615,14cyclictest0-21swapper/023:05:230
8871993613,17cyclictest0-21swapper/020:50:230
8871993612,21cyclictest0-21swapper/000:25:390
8871993611,22cyclictest0-21swapper/023:30:320
8871993610,23cyclictest0-21swapper/022:35:230
8871993610,19cyclictest0-21swapper/020:25:060
278712365,13sleep30-21swapper/319:50:163
276522365,11sleep30-21swapper/321:01:553
256902365,13sleep10-21swapper/120:59:441
181182365,13sleep00-21swapper/019:26:440
138462365,13sleep10-21swapper/119:18:341
11702365,12sleep20-21swapper/220:02:142
11422365,13sleep10-21swapper/120:01:531
102412365,13sleep00-21swapper/020:24:030
102412365,13sleep00-21swapper/020:24:030
8874993515,17cyclictest0-21swapper/322:46:373
887399356,21cyclictest0-21swapper/220:10:002
887399355,27cyclictest0-21swapper/223:25:332
8872993515,17cyclictest0-21swapper/122:10:211
8872993511,21cyclictest0-21swapper/100:21:441
8872993511,18cyclictest0-21swapper/120:20:281
8872993511,18cyclictest0-21swapper/120:20:281
887199355,23cyclictest0-21swapper/020:00:270
8871993515,12cyclictest0-21swapper/000:05:220
8871993514,19cyclictest0-21swapper/000:20:270
8871993514,18cyclictest0-21swapper/021:42:050
8871993513,20cyclictest0-21swapper/022:45:060
8871993512,20cyclictest0-21swapper/021:25:240
8871993511,21cyclictest0-21swapper/022:26:280
8871993511,21cyclictest0-21swapper/022:26:280
278732355,13sleep00-21swapper/021:04:440
269702355,12sleep10-21swapper/119:47:301
230512355,13sleep10-21swapper/119:40:091
188552355,13sleep20-21swapper/220:41:442
145252355,12sleep10-21swapper/120:33:021
108412355,13sleep20-21swapper/219:13:102
8874993411,20cyclictest0-21swapper/322:08:183
8874993411,20cyclictest0-21swapper/300:18:203
8874993411,20cyclictest0-21swapper/300:18:193
8873993416,16cyclictest0-21swapper/221:17:342
8873993416,16cyclictest0-21swapper/221:17:332
8873993416,15cyclictest0-21swapper/221:10:362
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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