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2026-03-23 - 08:09
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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 Mar 23, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1938621210,1sleep030671-21stress21:57:560
10697211959,55sleep30-21swapper/319:06:373
10671211751,35sleep20-21swapper/219:06:142
10917211653,58sleep10-21swapper/119:09:281
10684211553,56sleep00-21swapper/019:06:260
34472680,1sleep030671-21stress23:51:060
1106799399,27cyclictest0-21swapper/222:00:282
283412385,13sleep00-21swapper/021:03:350
245022385,13sleep10-21swapper/119:39:151
221992385,13sleep30-21swapper/319:31:593
201582385,13sleep30-21swapper/319:28:273
201582385,13sleep30-21swapper/319:28:273
11067993811,24cyclictest0-21swapper/222:30:102
11067993810,25cyclictest0-21swapper/223:12:322
11067993810,25cyclictest0-21swapper/200:05:552
110502385,13sleep00-21swapper/020:20:290
92042375,13sleep00-21swapper/020:19:080
91452375,13sleep30-21swapper/320:18:233
46732375,13sleep10-21swapper/120:06:141
3402375,13sleep10-21swapper/119:56:361
26292375,13sleep00-21swapper/020:02:550
260242375,13sleep20-21swapper/220:56:022
240422375,13sleep10-21swapper/120:52:541
239442375,13sleep00-21swapper/020:51:360
220792375,13sleep20-21swapper/220:49:582
218922375,13sleep10-21swapper/120:47:351
199202375,13sleep30-21swapper/320:44:533
197492375,12sleep10-21swapper/120:42:421
197072375,13sleep00-21swapper/020:42:100
158642375,13sleep10-21swapper/119:17:541
157492375,13sleep00-21swapper/019:16:370
132402375,13sleep30-21swapper/320:26:133
128232375,13sleep10-21swapper/119:11:081
112442375,13sleep30-21swapper/320:22:523
11068993715,19cyclictest0-21swapper/322:07:023
11067993716,18cyclictest0-21swapper/223:01:552
11067993715,19cyclictest0-21swapper/222:15:322
11067993712,22cyclictest0-21swapper/200:00:092
11067993712,22cyclictest0-21swapper/200:00:092
11065993711,19cyclictest0-21swapper/120:22:021
11063993715,19cyclictest0-21swapper/023:05:130
11063993714,21cyclictest0-21swapper/022:40:130
11063993714,20cyclictest0-21swapper/021:25:260
91112364,12sleep10-21swapper/120:17:561
71252365,12sleep30-21swapper/320:14:573
5212364,13sleep20-21swapper/219:58:492
287832365,12sleep00-21swapper/019:49:490
238702364,13sleep20-21swapper/220:50:422
198322364,13sleep20-21swapper/220:43:442
176652365,12sleep30-21swapper/320:38:043
157712365,12sleep20-21swapper/219:16:552
131922365,12sleep20-21swapper/220:25:392
11068993612,21cyclictest0-21swapper/322:13:133
1106799369,24cyclictest0-21swapper/221:35:362
1106799369,24cyclictest0-21swapper/221:35:362
11067993610,23cyclictest0-21swapper/221:30:042
11067993610,23cyclictest0-21swapper/221:30:042
1106599368,25cyclictest0-21swapper/100:13:341
11065993613,20cyclictest0-21swapper/121:30:371
11065993613,20cyclictest0-21swapper/121:30:361
11065993611,22cyclictest0-21swapper/122:44:521
1106399369,24cyclictest0-21swapper/021:12:550
46922355,12sleep00-21swapper/020:06:290
11068993513,19cyclictest0-21swapper/322:20:343
11068993511,21cyclictest0-21swapper/321:58:363
1106799359,23cyclictest0-21swapper/221:25:202
11067993516,17cyclictest0-21swapper/223:50:142
11067993511,21cyclictest0-21swapper/200:20:202
11065993513,19cyclictest0-21swapper/123:47:591
11065993510,18cyclictest0-21swapper/120:00:181
11063993516,17cyclictest0-21swapper/023:45:010
11063993515,17cyclictest0-21swapper/022:18:570
11063993514,19cyclictest0-21swapper/022:26:380
11063993514,18cyclictest0-21swapper/022:00:160
11063993513,19cyclictest0-21swapper/000:27:250
11063993513,19cyclictest0-21swapper/000:27:250
305822345,10sleep10-21swapper/119:50:291
304292345,12sleep00-21swapper/021:08:000
304292345,12sleep00-21swapper/021:08:000
281842345,10sleep20-21swapper/221:01:332
28052345,12sleep30-21swapper/320:05:003
244092345,10sleep00-21swapper/019:38:010
202092345,10sleep10-21swapper/119:29:051
202092345,10sleep10-21swapper/119:29:041
201652345,10sleep00-21swapper/019:28:320
201652345,10sleep00-21swapper/019:28:320
1106899348,23cyclictest0-21swapper/323:40:553
1106899348,23cyclictest0-21swapper/321:15:513
11068993415,16cyclictest0-21swapper/321:53:013
11068993411,20cyclictest0-21swapper/323:21:253
1106799348,23cyclictest0-21swapper/221:41:472
1106799348,23cyclictest0-21swapper/200:35:302
1106799348,23cyclictest0-21swapper/200:35:292
11067993411,21cyclictest0-21swapper/221:20:282
11067993410,21cyclictest0-21swapper/221:45:252
1106599349,18cyclictest0-21swapper/120:10:431
1106599346,17cyclictest0-21swapper/123:30:271
1106599346,17cyclictest0-21swapper/123:30:271
11065993415,16cyclictest0-21swapper/121:25:121
11065993412,19cyclictest0-21swapper/100:15:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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