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2026-04-12 - 11:27
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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 12, 2026 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2512021390,1sleep127913-21stress22:15:481
7648211552,58sleep20-21swapper/219:06:362
7675211452,23sleep00-21swapper/019:06:540
7676211352,21sleep10-21swapper/119:06:551
787529466,23sleep30-21swapper/319:09:303
170652580,2sleep127910-21stress00:30:211
8021994310,30cyclictest0-21swapper/323:35:103
8018994317,12cyclictest0-21swapper/023:16:040
8018994317,12cyclictest0-21swapper/023:16:040
8021994210,29cyclictest0-21swapper/321:12:053
8021994210,29cyclictest0-21swapper/300:02:133
8019994213,26cyclictest0-21swapper/121:44:551
802199415,33cyclictest0-21swapper/321:52:563
802199415,33cyclictest0-21swapper/321:52:553
8021994111,27cyclictest0-21swapper/323:33:283
8021994110,28cyclictest0-21swapper/322:02:233
802099415,26cyclictest0-21swapper/223:55:012
8018994114,15cyclictest0-21swapper/021:37:020
8018994113,15cyclictest0-21swapper/000:25:460
8018994113,15cyclictest0-21swapper/000:25:460
802199409,28cyclictest0-21swapper/323:40:033
802199409,28cyclictest0-21swapper/323:26:543
8021994015,22cyclictest0-21swapper/323:55:453
8021994015,22cyclictest0-21swapper/300:39:473
8021994010,27cyclictest0-21swapper/321:15:503
8021994010,27cyclictest0-21swapper/300:28:203
8021994010,27cyclictest0-21swapper/300:28:203
802099407,22cyclictest0-21swapper/222:40:152
8020994015,22cyclictest0-21swapper/222:24:472
8021993915,21cyclictest0-21swapper/300:20:203
8021993910,26cyclictest0-21swapper/321:45:073
801899398,23cyclictest0-21swapper/000:00:050
8018993916,13cyclictest0-21swapper/021:45:180
8018993911,16cyclictest0-21swapper/022:15:310
97672385,13sleep20-21swapper/219:10:432
8018993815,20cyclictest0-21swapper/023:59:200
323162384,13sleep20-21swapper/220:04:562
300242385,13sleep30-21swapper/319:58:343
277812385,13sleep30-21swapper/321:09:243
124922385,13sleep20-21swapper/220:30:492
8021993713,22cyclictest0-21swapper/321:25:233
8021993711,24cyclictest0-21swapper/300:05:293
8021993711,23cyclictest0-21swapper/322:25:253
8021993711,23cyclictest0-21swapper/321:21:403
8020993716,18cyclictest0-21swapper/200:10:112
801999376,16cyclictest0-21swapper/100:15:341
8019993715,19cyclictest0-21swapper/123:47:311
8018993717,18cyclictest0-21swapper/020:36:040
8018993714,20cyclictest0-21swapper/000:39:360
8018993712,19cyclictest0-21swapper/019:55:230
62772375,13sleep30-21swapper/320:18:283
40562375,13sleep20-21swapper/220:12:492
257212375,13sleep30-21swapper/319:48:013
257012375,13sleep00-21swapper/021:05:000
235272375,13sleep30-21swapper/319:42:303
215622375,13sleep30-21swapper/319:39:383
213352374,13sleep20-21swapper/220:54:082
191142374,13sleep20-21swapper/220:48:112
16822374,13sleep20-21swapper/220:05:352
168022375,13sleep30-21swapper/320:40:573
129422375,13sleep00-21swapper/019:19:110
128152375,13sleep20-21swapper/219:17:312
125732375,12sleep30-21swapper/320:31:513
99782365,11sleep00-21swapper/019:13:160
90882365,10sleep30-21swapper/319:10:183
802199368,26cyclictest0-21swapper/322:30:273
8021993614,20cyclictest0-21swapper/321:40:073
8021993611,22cyclictest0-21swapper/323:10:283
8020993615,18cyclictest0-21swapper/223:03:392
8020993615,18cyclictest0-21swapper/222:25:092
8020993615,18cyclictest0-21swapper/200:25:322
8020993615,18cyclictest0-21swapper/200:25:322
8020993614,20cyclictest0-21swapper/223:45:132
801999367,17cyclictest0-21swapper/122:40:311
8019993611,22cyclictest0-21swapper/122:31:071
8018993619,15cyclictest0-21swapper/020:00:380
8018993616,18cyclictest0-21swapper/020:25:060
8018993616,18cyclictest0-21swapper/020:25:050
8018993613,20cyclictest0-21swapper/023:30:540
8018993613,20cyclictest0-21swapper/021:54:560
8018993613,20cyclictest0-21swapper/021:54:560
8018993613,20cyclictest0-21swapper/021:24:520
8018993611,19cyclictest0-21swapper/019:34:550
322162365,12sleep30-21swapper/320:03:443
277832365,13sleep00-21swapper/021:09:250
193812365,12sleep30-21swapper/319:34:163
168662365,13sleep10-21swapper/120:41:471
124802365,13sleep00-21swapper/020:30:390
106392365,13sleep10-21swapper/120:29:201
106392365,13sleep10-21swapper/120:29:201
802199359,23cyclictest0-21swapper/323:50:163
802199359,23cyclictest0-21swapper/323:15:343
802199359,23cyclictest0-21swapper/323:15:343
8021993515,14cyclictest0-21swapper/323:00:593
8021993510,22cyclictest0-21swapper/300:10:133
801899356,23cyclictest0-21swapper/019:52:520
8018993516,16cyclictest0-21swapper/022:02:350
8018993514,16cyclictest0-21swapper/023:26:350
61362355,13sleep10-21swapper/120:16:541
235932355,13sleep10-21swapper/119:43:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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