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2026-08-24 - 23:30
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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 24, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7305211351,57sleep00-21swapper/007:05:430
734729367,21sleep30-21swapper/307:06:143
743828657,24sleep10-21swapper/107:07:201
569528257,20sleep20-21swapper/207:05:092
288012680,1sleep129401-21stress11:34:271
73972430,1sleep029404-21stress11:56:350
138802430,3sleep329404-21stress12:10:373
138802430,3sleep329404-21stress12:10:373
7753994011,26cyclictest0-21swapper/011:46:370
7753993910,26cyclictest0-21swapper/011:41:580
7753993910,26cyclictest0-21swapper/010:01:190
775399389,19cyclictest0-21swapper/008:37:460
7753993811,17cyclictest0-21swapper/008:07:160
7753993811,17cyclictest0-21swapper/008:07:150
7753993810,21cyclictest0-21swapper/007:45:140
69072385,13sleep10-21swapper/108:16:111
46662385,13sleep10-21swapper/108:11:181
25822385,13sleep30-21swapper/308:08:513
25822385,13sleep30-21swapper/308:08:503
112792385,13sleep30-21swapper/308:25:463
775599378,19cyclictest0-21swapper/210:00:212
775599375,23cyclictest0-21swapper/208:55:152
775499376,20cyclictest0-21swapper/110:35:031
775399378,26cyclictest0-21swapper/011:50:080
775399377,27cyclictest0-21swapper/010:25:240
775399377,27cyclictest0-21swapper/010:25:230
7753993715,19cyclictest0-21swapper/011:35:090
7753993715,19cyclictest0-21swapper/011:35:090
7753993710,24cyclictest0-21swapper/011:33:430
68522375,13sleep30-21swapper/308:15:283
292842375,13sleep20-21swapper/209:09:372
281452375,13sleep30-21swapper/307:52:153
270202375,13sleep30-21swapper/309:03:413
264712375,13sleep20-21swapper/207:50:042
23962375,13sleep20-21swapper/208:06:382
23962375,13sleep20-21swapper/208:06:372
207802375,13sleep20-21swapper/208:50:082
193592375,13sleep20-21swapper/207:32:402
171522375,13sleep20-21swapper/207:27:432
147662375,13sleep30-21swapper/307:20:593
138472375,13sleep20-21swapper/208:35:012
91392365,12sleep00-21swapper/008:21:100
7754993614,19cyclictest0-21swapper/111:27:351
775399368,19cyclictest0-21swapper/008:40:360
7753993616,19cyclictest0-21swapper/007:34:440
3262365,13sleep10-21swapper/108:04:031
280442365,13sleep10-21swapper/107:50:571
248222365,13sleep10-21swapper/108:58:411
245892365,12sleep30-21swapper/308:56:023
242372365,13sleep10-21swapper/107:45:111
238982365,13sleep00-21swapper/007:44:220
150532365,12sleep20-21swapper/207:24:142
137892365,13sleep10-21swapper/108:34:231
126702365,12sleep30-21swapper/307:17:213
113192365,13sleep00-21swapper/008:26:170
92572355,12sleep10-21swapper/108:22:441
7756993515,17cyclictest0-21swapper/309:36:503
775599356,26cyclictest0-21swapper/210:50:152
7755993517,15cyclictest0-21swapper/212:09:032
7755993517,15cyclictest0-21swapper/212:09:032
7755993515,17cyclictest0-21swapper/212:03:052
7755993515,17cyclictest0-21swapper/210:45:032
7755993514,18cyclictest0-21swapper/210:07:542
7754993512,20cyclictest0-21swapper/112:17:351
3002355,12sleep00-21swapper/008:03:420
290512355,12sleep30-21swapper/309:06:463
262202355,14sleep10-21swapper/109:00:211
238362355,13sleep10-21swapper/107:43:381
206922350,1sleep229401-21stress12:27:162
204682355,10sleep00-21swapper/008:49:380
127852355,10sleep00-21swapper/007:18:520
7756993416,15cyclictest0-21swapper/309:42:043
7756993413,18cyclictest0-21swapper/310:23:023
775599345,19cyclictest0-21swapper/208:40:172
7755993416,15cyclictest0-21swapper/209:20:482
7755993412,20cyclictest0-21swapper/210:41:002
7754993411,20cyclictest0-21swapper/110:33:441
7753993410,17cyclictest0-21swapper/009:00:490
71322345,10sleep20-21swapper/208:18:562
327462345,12sleep30-21swapper/308:03:293
306202345,10sleep30-21swapper/307:59:573
269842345,10sleep20-21swapper/209:03:112
202372345,10sleep20-21swapper/208:46:552
171312345,13sleep10-21swapper/107:27:271
7756993313,17cyclictest0-21swapper/312:21:403
7756993313,17cyclictest0-21swapper/311:00:193
7756993313,17cyclictest0-21swapper/309:28:353
775599339,21cyclictest0-21swapper/210:55:142
7755993316,14cyclictest0-21swapper/211:18:462
7755993315,15cyclictest0-21swapper/211:10:222
7755993315,15cyclictest0-21swapper/211:10:212
7755993314,17cyclictest0-21swapper/212:20:182
7755993311,19cyclictest0-21swapper/211:50:352
7755993310,20cyclictest0-21swapper/211:55:042
775499338,12cyclictest0-21swapper/112:25:321
7754993315,15cyclictest0-21swapper/112:38:521
7754993312,19cyclictest0-21swapper/110:45:231
775399339,21cyclictest0-21swapper/009:30:010
775399335,26cyclictest0-21swapper/008:18:510
7753993310,16cyclictest0-21swapper/007:20:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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