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2026-05-15 - 05:54
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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 Fri May 15, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20260211451,58sleep10-21swapper/119:06:521
20177211053,20sleep30-21swapper/319:05:543
20508210850,20sleep00-21swapper/019:09:520
20159210650,50sleep20-21swapper/219:05:412
20621995032,15cyclictest0-21swapper/121:47:581
20621994932,15cyclictest0-21swapper/121:41:041
20621994831,15cyclictest0-21swapper/122:20:171
20621994831,15cyclictest0-21swapper/121:35:191
20621994830,16cyclictest0-21swapper/123:00:371
234792470,1sleep18632-21stress00:12:531
20621994731,14cyclictest0-21swapper/123:05:251
20621994731,14cyclictest0-21swapper/123:05:251
20621994731,14cyclictest0-21swapper/122:42:421
20621994730,15cyclictest0-21swapper/123:30:151
20621994730,15cyclictest0-21swapper/121:55:151
20621994730,15cyclictest0-21swapper/121:55:151
20621994730,15cyclictest0-21swapper/121:15:191
20621994729,16cyclictest0-21swapper/121:14:041
20621994729,16cyclictest0-21swapper/100:05:161
20621994729,15cyclictest0-21swapper/100:30:251
20621994727,17cyclictest0-21swapper/122:35:181
20621994630,14cyclictest0-21swapper/121:21:401
20621994629,15cyclictest0-21swapper/122:49:201
20621994629,14cyclictest0-21swapper/100:25:331
20621994529,14cyclictest0-21swapper/123:55:301
20621994529,14cyclictest0-21swapper/121:25:141
20621994528,14cyclictest0-21swapper/123:40:251
20621994430,12cyclictest0-21swapper/100:20:211
20621994427,15cyclictest0-21swapper/123:11:371
20621994427,15cyclictest0-21swapper/123:11:371
20621994425,17cyclictest0-21swapper/123:25:361
20621994328,13cyclictest0-21swapper/123:15:321
20621994328,13cyclictest0-21swapper/123:15:311
20621994327,14cyclictest0-21swapper/121:30:331
20621994326,15cyclictest0-21swapper/123:50:091
20621994326,15cyclictest0-21swapper/123:50:091
20621994326,15cyclictest0-21swapper/100:00:241
20621994325,16cyclictest0-21swapper/121:55:021
20621994228,12cyclictest0-21swapper/122:59:371
20621994228,12cyclictest0-21swapper/122:00:281
20622994127,12cyclictest0-21swapper/222:14:052
20621994125,14cyclictest0-21swapper/122:25:231
20622993911,25cyclictest0-21swapper/223:49:402
20622993911,25cyclictest0-21swapper/223:49:402
20622993911,25cyclictest0-21swapper/223:41:442
2062199399,22cyclictest0-21swapper/121:00:151
20621993923,14cyclictest0-21swapper/122:15:221
20621993923,14cyclictest0-21swapper/100:17:151
20621993921,16cyclictest0-21swapper/123:35:101
20621993918,19cyclictest0-21swapper/122:30:191
20621993917,19cyclictest0-21swapper/122:53:501
3225223810,11sleep30-21swapper/300:34:383
2062299389,26cyclictest0-21swapper/223:50:292
2062299389,26cyclictest0-21swapper/223:50:292
20622993815,20cyclictest0-21swapper/222:27:332
20622993815,20cyclictest0-21swapper/200:21:302
20622993811,24cyclictest0-21swapper/200:34:122
20622993810,25cyclictest0-21swapper/222:15:382
20621993826,10cyclictest0-21swapper/123:20:351
20621993812,16cyclictest0-21swapper/121:05:221
2062099386,21cyclictest0-21swapper/022:00:220
20622993714,20cyclictest0-21swapper/222:30:042
2062099379,22cyclictest0-21swapper/022:50:060
40192365,13sleep20-21swapper/220:57:492
255742365,13sleep20-21swapper/219:18:502
224502365,13sleep20-21swapper/219:11:272
20622993614,20cyclictest0-21swapper/222:05:342
20622993613,20cyclictest0-21swapper/223:05:312
20622993613,20cyclictest0-21swapper/223:05:302
20622993611,22cyclictest0-21swapper/221:52:112
20622993610,23cyclictest0-21swapper/223:29:412
151992365,13sleep30-21swapper/320:10:103
319792355,13sleep00-21swapper/020:46:480
319792355,13sleep00-21swapper/020:46:480
317902355,13sleep30-21swapper/319:30:413
298682355,13sleep20-21swapper/219:29:032
298032355,13sleep00-21swapper/019:28:130
2062399359,23cyclictest0-21swapper/323:28:413
2062399358,24cyclictest0-21swapper/323:36:033
2062399357,25cyclictest0-21swapper/300:27:183
20621993516,4cyclictest2276-21/usr/sbin/munin20:55:181
20621993514,19cyclictest0-21swapper/120:25:141
20621993512,21cyclictest0-21swapper/122:10:151
20620993512,20cyclictest0-21swapper/000:36:270
20620993512,20cyclictest0-21swapper/000:36:270
20620993511,21cyclictest0-21swapper/022:30:290
124002355,13sleep20-21swapper/220:00:312
59352345,13sleep20-21swapper/219:45:352
299702345,12sleep30-21swapper/320:44:153
254862345,13sleep20-21swapper/220:31:402
214412345,13sleep20-21swapper/220:25:012
212822345,13sleep30-21swapper/320:23:103
20623993411,21cyclictest0-21swapper/321:15:303
20623993411,20cyclictest0-21swapper/323:34:533
20623993411,20cyclictest0-21swapper/321:51:393
20623993410,21cyclictest0-21swapper/322:55:283
20623993410,21cyclictest0-21swapper/322:07:413
2062299349,22cyclictest0-21swapper/222:40:082
20622993416,16cyclictest0-21swapper/221:55:152
20622993416,16cyclictest0-21swapper/221:55:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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