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2026-04-19 - 12:01
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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 Sun Apr 19, 2026 00:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17744211351,56sleep30-21swapper/319:08:393
17692211247,60sleep00-21swapper/019:08:000
17805211151,21sleep10-21swapper/119:09:251
1761128860,23sleep20-21swapper/219:07:012
1795199480,32cyclictest0-21swapper/021:45:140
17951994713,23cyclictest0-21swapper/022:35:200
17951994713,23cyclictest0-21swapper/022:35:200
17951994514,21cyclictest0-21swapper/000:00:020
17951994514,21cyclictest0-21swapper/000:00:020
17951994512,20cyclictest0-21swapper/023:00:290
17951994413,21cyclictest0-21swapper/021:40:580
17951994315,19cyclictest0-21swapper/019:40:230
17951994314,20cyclictest0-21swapper/020:00:230
17951994313,20cyclictest0-21swapper/019:35:130
17951994313,19cyclictest0-21swapper/000:05:170
17951994312,20cyclictest0-21swapper/023:10:020
17951994213,21cyclictest0-21swapper/019:48:030
1795299415,21cyclictest0-21swapper/121:55:121
17951994117,21cyclictest0-21swapper/021:25:290
17951994117,18cyclictest0-21swapper/000:10:290
17951994116,22cyclictest0-21swapper/023:20:290
17951994116,22cyclictest0-21swapper/023:20:280
17951994115,19cyclictest0-21swapper/022:15:320
17951994114,19cyclictest0-21swapper/021:05:160
17951994112,20cyclictest0-21swapper/019:30:160
17951994017,16cyclictest0-21swapper/022:00:130
17951994017,16cyclictest0-21swapper/022:00:130
17951994016,21cyclictest0-21swapper/022:30:140
17951994016,15cyclictest0-21swapper/022:05:170
17951994012,20cyclictest0-21swapper/019:55:200
17951994012,20cyclictest0-21swapper/019:25:530
17951994012,19cyclictest0-21swapper/023:15:340
17951994012,19cyclictest0-21swapper/023:15:340
17951994010,20cyclictest0-21swapper/022:10:440
1795299397,29cyclictest0-21swapper/122:31:001
1795199395,24cyclictest0-21swapper/021:10:500
17951993919,18cyclictest0-21swapper/000:01:300
17951993919,17cyclictest0-21swapper/022:00:010
17951993919,14cyclictest0-21swapper/020:40:040
17951993918,18cyclictest0-21swapper/022:45:250
17951993918,18cyclictest0-21swapper/022:20:200
17951993917,19cyclictest0-21swapper/023:35:260
17951993911,19cyclictest0-21swapper/020:10:180
52882385,13sleep20-21swapper/219:51:132
51172384,13sleep30-21swapper/321:05:403
287332380,1sleep15549-21stress23:18:371
287332380,1sleep15549-21stress23:18:371
250882385,13sleep30-21swapper/319:24:543
17953993815,20cyclictest0-21swapper/222:40:122
17953993815,20cyclictest0-21swapper/222:40:122
1795199388,23cyclictest0-21swapper/019:20:170
17951993818,18cyclictest0-21swapper/023:50:160
17951993818,18cyclictest0-21swapper/023:50:150
17951993818,18cyclictest0-21swapper/022:50:230
17951993817,19cyclictest0-21swapper/021:50:280
17951993817,15cyclictest0-21swapper/023:10:190
17951993817,15cyclictest0-21swapper/023:10:190
17951993816,20cyclictest0-21swapper/021:15:290
17951993813,17cyclictest0-21swapper/019:15:220
17951993812,19cyclictest0-21swapper/020:58:030
17951993812,17cyclictest0-21swapper/019:10:160
98692375,13sleep20-21swapper/220:04:322
95802375,13sleep30-21swapper/320:00:563
8392375,13sleep20-21swapper/220:56:492
74372375,12sleep10-21swapper/119:56:011
314652375,13sleep10-21swapper/119:39:251
291012375,12sleep10-21swapper/120:48:261
271622375,13sleep20-21swapper/219:29:112
17952993712,22cyclictest0-21swapper/100:19:271
17952993711,11cyclictest0-21swapper/123:10:231
17952993711,11cyclictest0-21swapper/123:10:231
1795199376,26cyclictest0-21swapper/021:00:310
1795199376,26cyclictest0-21swapper/021:00:310
17951993718,16cyclictest0-21swapper/022:40:140
17951993718,16cyclictest0-21swapper/022:40:130
17951993718,16cyclictest0-21swapper/021:24:140
17951993716,19cyclictest0-21swapper/022:55:160
17951993716,19cyclictest0-21swapper/000:35:270
118822375,12sleep30-21swapper/320:07:583
290362365,12sleep30-21swapper/320:47:403
249182365,12sleep10-21swapper/120:39:201
247202364,13sleep30-21swapper/320:36:573
202922365,12sleep30-21swapper/320:25:343
199802365,12sleep10-21swapper/119:14:351
1795299368,25cyclictest0-21swapper/122:39:211
1795299368,25cyclictest0-21swapper/122:39:211
17952993614,20cyclictest0-21swapper/121:39:511
1795199368,20cyclictest0-21swapper/020:05:220
17951993618,16cyclictest0-21swapper/023:25:130
17951993617,17cyclictest0-21swapper/021:30:070
17951993617,17cyclictest0-21swapper/021:30:070
17951993617,17cyclictest0-21swapper/000:20:210
17951993616,18cyclictest0-21swapper/000:15:140
17951993615,19cyclictest0-21swapper/022:25:230
17951993615,18cyclictest0-21swapper/023:45:230
17951993615,18cyclictest0-21swapper/023:45:230
17951993613,10cyclictest5549-21stress21:35:200
17951993611,22cyclictest0-21swapper/000:25:070
17951993611,22cyclictest0-21swapper/000:25:070
17951993610,18cyclictest0-21swapper/020:25:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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