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2025-10-23 - 04:25
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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 Oct 23, 2025 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16450211652,58sleep30-21swapper/319:06:373
16679211552,58sleep00-21swapper/019:09:310
1643329365,23sleep20-21swapper/219:06:242
1639128455,23sleep10-21swapper/119:05:581
312732560,1sleep05038-21stress00:37:180
312732560,1sleep05038-21stress00:37:180
245642490,1sleep15038-21stress21:54:081
16819994314,18cyclictest0-21swapper/021:39:330
16819994228,12cyclictest0-21swapper/022:56:380
16820994116,22cyclictest0-21swapper/121:10:201
16819994116,22cyclictest0-21swapper/022:47:400
16819994026,12cyclictest0-21swapper/023:16:280
16819994026,12cyclictest0-21swapper/023:16:280
16819994015,22cyclictest0-21swapper/021:33:540
16820993915,21cyclictest0-21swapper/123:50:271
16820993915,21cyclictest0-21swapper/123:50:271
16819993918,18cyclictest0-21swapper/021:12:520
16819993914,22cyclictest0-21swapper/023:27:150
16819993913,23cyclictest0-21swapper/000:25:340
16819993913,23cyclictest0-21swapper/000:25:340
66572385,13sleep20-21swapper/219:57:252
221212385,14sleep20-21swapper/220:33:442
197132385,13sleep20-21swapper/220:26:242
187812385,13sleep20-21swapper/219:12:582
16819993817,18cyclictest0-21swapper/022:52:450
16819993815,20cyclictest0-21swapper/000:10:370
16819993814,21cyclictest0-21swapper/023:35:030
16819993813,22cyclictest0-21swapper/023:20:100
46522375,13sleep20-21swapper/219:54:402
306452375,13sleep30-21swapper/320:51:553
240692375,13sleep30-21swapper/319:24:383
16821993710,24cyclictest0-21swapper/200:26:022
16821993710,24cyclictest0-21swapper/200:26:022
1682099376,21cyclictest0-21swapper/100:20:171
1682099376,21cyclictest0-21swapper/100:05:301
16820993715,20cyclictest0-21swapper/100:35:351
16820993715,20cyclictest0-21swapper/100:35:351
16820993715,19cyclictest0-21swapper/123:38:341
16820993711,23cyclictest0-21swapper/121:21:431
16819993716,19cyclictest0-21swapper/023:56:410
16819993714,20cyclictest0-21swapper/021:56:450
155992375,13sleep00-21swapper/020:19:350
109832375,13sleep00-21swapper/020:06:370
87282365,12sleep10-21swapper/120:00:591
3382364,13sleep30-21swapper/320:56:483
305832364,13sleep30-21swapper/319:39:373
27422365,13sleep10-21swapper/121:04:321
264672365,13sleep00-21swapper/020:43:450
242832365,13sleep10-21swapper/120:38:461
16822993615,19cyclictest0-21swapper/323:40:393
16821993614,20cyclictest0-21swapper/221:13:192
1682099365,21cyclictest0-21swapper/100:11:121
16819993616,17cyclictest0-21swapper/023:00:030
16819993614,20cyclictest0-21swapper/023:40:230
154392364,13sleep30-21swapper/320:17:343
109802365,13sleep20-21swapper/220:06:352
87072355,13sleep30-21swapper/320:00:463
262062355,13sleep30-21swapper/319:29:063
23362355,13sleep20-21swapper/219:47:532
219092355,10sleep30-21swapper/319:19:483
16822993515,18cyclictest0-21swapper/300:32:553
16822993515,18cyclictest0-21swapper/300:32:553
16822993514,19cyclictest0-21swapper/322:45:313
16821993516,16cyclictest0-21swapper/223:47:312
1682099355,16cyclictest0-21swapper/120:25:201
16820993514,19cyclictest0-21swapper/121:15:321
1681999356,26cyclictest0-21swapper/000:20:220
16819993516,17cyclictest0-21swapper/023:50:370
16819993516,17cyclictest0-21swapper/023:50:360
16819993514,18cyclictest0-21swapper/021:45:030
133062354,13sleep30-21swapper/320:13:293
49572345,10sleep00-21swapper/019:55:100
48452345,10sleep10-21swapper/121:08:371
287392344,13sleep30-21swapper/320:49:503
287392344,13sleep30-21swapper/320:49:493
284232345,11sleep10-21swapper/120:45:591
284232345,11sleep10-21swapper/120:45:581
27512345,12sleep00-21swapper/021:04:380
265462345,10sleep20-21swapper/220:44:482
24112345,10sleep10-21swapper/119:48:501
225032344,12sleep30-21swapper/320:35:073
16822993411,20cyclictest0-21swapper/321:51:203
16822993411,20cyclictest0-21swapper/300:35:413
16822993411,20cyclictest0-21swapper/300:35:413
1682199348,23cyclictest0-21swapper/221:39:402
1682199347,24cyclictest0-21swapper/223:53:032
1682199347,24cyclictest0-21swapper/223:53:022
16821993415,16cyclictest0-21swapper/222:50:512
16821993415,16cyclictest0-21swapper/222:11:222
16821993415,16cyclictest0-21swapper/221:20:162
16821993413,18cyclictest0-21swapper/223:12:532
16821993411,20cyclictest0-21swapper/222:25:232
16821993411,20cyclictest0-21swapper/222:05:502
16821993411,20cyclictest0-21swapper/222:05:492
16821993410,21cyclictest0-21swapper/222:35:202
1682099348,24cyclictest0-21swapper/120:15:331
1682099348,24cyclictest0-21swapper/119:32:221
1682099348,24cyclictest0-21swapper/119:20:531
1682099345,20cyclictest0-21swapper/100:25:151
1682099345,20cyclictest0-21swapper/100:25:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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