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2026-08-03 - 06:14
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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 Mon Aug 03, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1666921370,1sleep024357-21stress23:17:110
2597211756,20sleep20-21swapper/219:07:372
2765211552,58sleep00-21swapper/019:09:390
2661211453,55sleep30-21swapper/319:08:253
2581211353,55sleep10-21swapper/119:07:231
188162750,1sleep018817-21grep22:10:130
2923995010,27cyclictest0-21swapper/022:03:450
2923995010,27cyclictest0-21swapper/022:03:450
2923994614,16cyclictest0-21swapper/023:50:010
2923994614,16cyclictest0-21swapper/023:50:010
2923994517,20cyclictest0-21swapper/019:10:240
2923994510,21cyclictest0-21swapper/021:18:210
2925994411,22cyclictest0-21swapper/222:15:222
2923994314,26cyclictest0-21swapper/023:01:510
292599426,26cyclictest0-21swapper/222:30:322
2923994117,18cyclictest0-21swapper/020:49:000
2923994116,22cyclictest0-21swapper/000:12:250
2923994115,23cyclictest0-21swapper/000:24:400
2923994115,23cyclictest0-21swapper/000:24:400
2924994013,24cyclictest0-21swapper/121:16:471
2923994017,18cyclictest0-21swapper/021:08:290
2923994015,19cyclictest0-21swapper/019:46:590
2923994014,23cyclictest0-21swapper/021:34:590
2926993913,23cyclictest0-21swapper/321:30:283
292599397,21cyclictest0-21swapper/223:12:252
292599397,21cyclictest0-21swapper/223:12:252
2925993916,20cyclictest0-21swapper/221:28:472
2923993915,21cyclictest0-21swapper/021:35:110
2923993914,22cyclictest0-21swapper/021:10:300
2923993914,22cyclictest0-21swapper/000:17:370
2923993914,22cyclictest0-21swapper/000:17:360
2926993815,20cyclictest0-21swapper/321:48:423
2926993813,22cyclictest0-21swapper/321:11:183
2926993811,24cyclictest0-21swapper/321:36:293
2926993810,12cyclictest0-21swapper/323:19:093
292599386,23cyclictest0-21swapper/222:15:012
292599386,12cyclictest0-21swapper/221:50:252
292599386,12cyclictest0-21swapper/221:50:252
2925993813,22cyclictest0-21swapper/200:37:312
2925993811,24cyclictest0-21swapper/223:25:242
2924993815,15cyclictest0-21swapper/123:11:251
2924993815,15cyclictest0-21swapper/123:11:251
2923993816,19cyclictest0-21swapper/022:05:070
2923993816,19cyclictest0-21swapper/022:05:070
2923993811,21cyclictest0-21swapper/019:25:300
253572385,13sleep20-21swapper/219:55:372
231562385,13sleep20-21swapper/219:50:402
86882375,13sleep10-21swapper/120:32:411
79212375,13sleep20-21swapper/219:17:432
41752375,13sleep30-21swapper/320:21:353
2926993714,20cyclictest0-21swapper/322:25:543
2926993714,20cyclictest0-21swapper/321:26:473
2925993715,20cyclictest0-21swapper/223:39:412
2925993715,20cyclictest0-21swapper/222:43:522
2925993713,21cyclictest0-21swapper/221:21:052
2925993713,21cyclictest0-21swapper/221:21:052
2925993713,21cyclictest0-21swapper/200:30:282
2925993710,24cyclictest0-21swapper/222:58:332
2925993710,16cyclictest0-21swapper/222:35:282
2924993714,20cyclictest0-21swapper/122:53:341
2924993713,21cyclictest0-21swapper/123:07:251
2924993713,21cyclictest0-21swapper/123:07:241
2924993713,21cyclictest0-21swapper/122:00:341
2924993713,21cyclictest0-21swapper/122:00:341
2923993713,21cyclictest0-21swapper/023:50:140
2923993713,18cyclictest0-21swapper/019:17:060
2923993711,20cyclictest0-21swapper/019:30:240
179762375,13sleep20-21swapper/220:55:042
168872375,13sleep20-21swapper/219:39:332
151292375,13sleep10-21swapper/120:45:551
144192375,13sleep30-21swapper/319:31:393
130752375,13sleep00-21swapper/020:42:540
77492365,12sleep30-21swapper/319:15:403
66922365,12sleep30-21swapper/320:29:573
65002365,13sleep00-21swapper/020:27:390
2926993613,20cyclictest0-21swapper/322:00:143
2926993613,20cyclictest0-21swapper/322:00:133
2926993612,21cyclictest0-21swapper/300:06:043
2926993610,23cyclictest0-21swapper/321:55:113
292599368,18cyclictest0-21swapper/200:00:212
292599367,19cyclictest0-21swapper/222:45:132
292599366,20cyclictest0-21swapper/221:00:232
2925993615,18cyclictest0-21swapper/221:45:182
2925993610,18cyclictest0-21swapper/219:45:132
2924993614,14cyclictest0-21swapper/121:40:301
2924993612,16cyclictest0-21swapper/122:10:291
2923993614,19cyclictest0-21swapper/023:10:150
2923993614,19cyclictest0-21swapper/023:10:150
2923993614,16cyclictest0-21swapper/019:50:490
278722365,13sleep00-21swapper/020:04:330
260092365,13sleep10-21swapper/120:00:131
239262365,12sleep30-21swapper/321:05:513
219942365,12sleep30-21swapper/321:03:553
196482365,12sleep30-21swapper/320:57:043
18832365,12sleep10-21swapper/120:16:531
152312365,12sleep30-21swapper/320:47:063
144072365,13sleep10-21swapper/119:31:291
128792365,13sleep10-21swapper/120:40:311
110112365,13sleep10-21swapper/120:39:231
110112365,13sleep10-21swapper/120:39:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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