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2026-05-28 - 17:29
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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 May 28, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8747211755,23sleep10-21swapper/107:09:121
8684211250,24sleep00-21swapper/007:08:230
8568211055,20sleep30-21swapper/307:07:013
250832870,1sleep129353-21stress10:14:421
856228153,23sleep20-21swapper/207:06:572
8920994513,18cyclictest0-21swapper/112:18:471
8920994513,18cyclictest0-21swapper/112:18:471
8920994413,15cyclictest0-21swapper/111:38:011
8920994210,22cyclictest0-21swapper/109:40:161
892099419,22cyclictest0-21swapper/111:15:191
165492410,1sleep029356-21stress11:09:280
8920994011,19cyclictest0-21swapper/111:50:121
891999406,13cyclictest0-21swapper/012:24:360
891999406,13cyclictest0-21swapper/012:24:360
8919994010,24cyclictest0-21swapper/008:00:290
8919994010,24cyclictest0-21swapper/007:15:480
8922993919,17cyclictest0-21swapper/312:05:293
8920993914,19cyclictest0-21swapper/112:37:001
8920993911,19cyclictest0-21swapper/109:20:561
8920993911,19cyclictest0-21swapper/109:20:551
891999399,23cyclictest0-21swapper/007:41:580
8919993911,22cyclictest0-21swapper/008:20:050
891999389,23cyclictest0-21swapper/007:45:480
891999389,23cyclictest0-21swapper/007:34:270
200522385,13sleep10-21swapper/107:30:301
8921993716,19cyclictest0-21swapper/211:05:322
892099378,20cyclictest0-21swapper/110:08:321
891999379,22cyclictest0-21swapper/008:56:580
891999379,22cyclictest0-21swapper/008:26:590
891999379,22cyclictest0-21swapper/007:22:280
891999378,23cyclictest0-21swapper/007:10:490
249672375,13sleep10-21swapper/108:59:531
117402375,13sleep20-21swapper/208:27:142
8922993617,16cyclictest0-21swapper/310:12:243
8921993617,16cyclictest0-21swapper/209:56:022
8921993615,18cyclictest0-21swapper/211:42:052
8921993613,20cyclictest0-21swapper/212:09:302
8920993613,21cyclictest0-21swapper/112:00:351
891999369,22cyclictest0-21swapper/007:35:030
891999369,21cyclictest0-21swapper/008:34:280
891999369,21cyclictest0-21swapper/008:34:280
891999365,20cyclictest0-21swapper/010:32:070
891999365,20cyclictest0-21swapper/010:32:060
8919993619,15cyclictest0-21swapper/010:50:290
8919993610,21cyclictest0-21swapper/007:55:040
8919993610,21cyclictest0-21swapper/007:25:060
8919993610,20cyclictest0-21swapper/008:51:020
8919993610,20cyclictest0-21swapper/008:10:060
75902365,13sleep00-21swapper/008:19:170
269932365,13sleep00-21swapper/009:03:230
268602365,12sleep10-21swapper/109:01:441
158512365,13sleep10-21swapper/107:21:561
8922993521,11cyclictest0-21swapper/312:38:213
8922993519,13cyclictest0-21swapper/310:40:143
8922993511,21cyclictest0-21swapper/311:04:553
8921993517,16cyclictest0-21swapper/212:35:272
8921993516,16cyclictest0-21swapper/210:52:152
8920993515,18cyclictest0-21swapper/109:30:151
8920993512,20cyclictest0-21swapper/110:20:141
8920993511,22cyclictest0-21swapper/112:25:261
891999358,24cyclictest0-21swapper/009:10:540
8919993510,19cyclictest0-21swapper/007:54:380
289122355,10sleep20-21swapper/209:05:312
225492355,10sleep20-21swapper/208:51:552
8922993416,16cyclictest0-21swapper/312:15:033
8922993416,16cyclictest0-21swapper/312:15:033
8922993414,17cyclictest0-21swapper/309:34:203
8922993410,21cyclictest0-21swapper/309:47:213
8921993415,16cyclictest0-21swapper/209:19:022
8921993412,19cyclictest0-21swapper/209:53:032
8921993412,19cyclictest0-21swapper/209:53:022
8920993415,16cyclictest0-21swapper/112:30:101
8920993414,17cyclictest0-21swapper/112:13:321
891999346,25cyclictest0-21swapper/012:30:250
891999345,17cyclictest0-21swapper/010:00:140
75222345,10sleep10-21swapper/108:18:251
246012345,10sleep30-21swapper/307:42:593
181452345,10sleep20-21swapper/207:28:182
117562345,10sleep10-21swapper/108:27:241
108072345,10sleep20-21swapper/207:12:342
8922993318,13cyclictest0-21swapper/312:10:333
8922993316,14cyclictest0-21swapper/311:40:183
8922993315,16cyclictest0-21swapper/309:20:453
8922993315,16cyclictest0-21swapper/309:20:443
8922993314,16cyclictest0-21swapper/312:25:213
8922993314,16cyclictest0-21swapper/309:40:433
8922993313,17cyclictest0-21swapper/311:35:233
892199338,22cyclictest0-21swapper/212:17:552
892199338,22cyclictest0-21swapper/212:17:542
8921993317,13cyclictest0-21swapper/210:17:202
8921993315,15cyclictest0-21swapper/211:46:152
8921993315,15cyclictest0-21swapper/211:46:142
8921993315,15cyclictest0-21swapper/210:43:302
8921993315,15cyclictest0-21swapper/209:30:262
8921993315,15cyclictest0-21swapper/209:20:202
8921993315,15cyclictest0-21swapper/209:20:202
8921993314,17cyclictest0-21swapper/211:30:232
8921993313,17cyclictest0-21swapper/211:20:222
8921993312,19cyclictest0-21swapper/211:19:002
8921993310,20cyclictest0-21swapper/212:20:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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