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2025-12-10 - 11:25
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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 Wed Dec 10, 2025 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24360211753,23sleep30-21swapper/319:06:083
24348211451,58sleep10-21swapper/119:05:581
24664210250,20sleep00-21swapper/019:09:510
2467529567,23sleep20-21swapper/219:09:582
24775994211,28cyclictest0-21swapper/022:05:240
24775994211,28cyclictest0-21swapper/021:23:070
24775994211,28cyclictest0-21swapper/021:23:070
24775994210,29cyclictest0-21swapper/023:23:500
24775994116,22cyclictest0-21swapper/022:56:110
2477599409,28cyclictest0-21swapper/000:00:280
2477599407,30cyclictest0-21swapper/021:28:270
24775994016,22cyclictest0-21swapper/000:26:470
24775994015,22cyclictest0-21swapper/000:10:080
82392395,32sleep20-21swapper/219:42:172
295382395,13sleep20-21swapper/219:15:272
24775993916,21cyclictest0-21swapper/021:57:200
24775993916,21cyclictest0-21swapper/021:48:290
24775993914,22cyclictest0-21swapper/023:10:010
236862395,13sleep20-21swapper/220:16:332
17302395,13sleep20-21swapper/219:28:212
131802395,13sleep20-21swapper/221:05:292
281392385,13sleep20-21swapper/220:26:322
281392385,13sleep20-21swapper/220:26:322
24775993811,25cyclictest0-21swapper/022:30:380
106502385,13sleep20-21swapper/219:49:422
84242375,13sleep30-21swapper/319:44:353
326032375,13sleep10-21swapper/120:37:381
295632375,13sleep30-21swapper/319:15:353
281052375,13sleep30-21swapper/320:26:043
281052375,13sleep30-21swapper/320:26:043
267722375,13sleep20-21swapper/219:12:502
24778993715,19cyclictest0-21swapper/321:55:293
24776993715,19cyclictest0-21swapper/123:20:331
24776993715,19cyclictest0-21swapper/123:10:281
24776993710,18cyclictest0-21swapper/122:25:341
24776993710,18cyclictest0-21swapper/122:25:331
2477599379,25cyclictest0-21swapper/021:35:220
24775993715,19cyclictest0-21swapper/000:05:210
24775993710,25cyclictest0-21swapper/022:40:000
215662375,12sleep20-21swapper/220:12:402
148342375,13sleep20-21swapper/219:56:452
112492375,13sleep10-21swapper/121:03:321
83882365,13sleep00-21swapper/019:44:070
24777993612,21cyclictest0-21swapper/223:25:562
24776993615,18cyclictest0-21swapper/100:28:121
24776993614,20cyclictest0-21swapper/123:16:201
24776993612,21cyclictest0-21swapper/121:36:251
24776993610,23cyclictest0-21swapper/100:02:361
194492365,12sleep20-21swapper/220:09:042
90272355,13sleep10-21swapper/120:58:341
45042355,13sleep30-21swapper/320:47:053
303732355,10sleep20-21swapper/220:32:172
265522355,13sleep30-21swapper/319:10:303
24778993515,18cyclictest0-21swapper/322:43:133
24778993514,18cyclictest0-21swapper/322:15:153
2477799356,26cyclictest0-21swapper/222:17:032
2477799355,27cyclictest0-21swapper/221:35:342
24776993515,18cyclictest0-21swapper/122:35:121
24776993513,19cyclictest0-21swapper/122:31:021
24776993512,21cyclictest0-21swapper/122:21:471
153782355,12sleep00-21swapper/020:00:040
147712355,12sleep00-21swapper/019:56:020
131782355,12sleep00-21swapper/021:05:270
118892350,2sleep313649-21stress23:30:323
37982345,10sleep10-21swapper/119:31:451
324992345,13sleep20-21swapper/220:36:222
305212345,10sleep10-21swapper/120:34:091
24778993418,15cyclictest0-21swapper/320:38:033
24778993415,16cyclictest0-21swapper/300:35:553
24778993413,18cyclictest0-21swapper/321:44:053
24777993416,15cyclictest0-21swapper/222:45:162
24777993411,20cyclictest0-21swapper/223:30:302
24777993410,21cyclictest0-21swapper/200:05:012
24776993415,17cyclictest0-21swapper/121:40:091
24776993415,16cyclictest0-21swapper/123:54:201
24776993413,19cyclictest0-21swapper/123:55:061
24776993413,19cyclictest0-21swapper/100:10:321
2477599349,22cyclictest0-21swapper/023:55:010
24775993415,16cyclictest0-21swapper/023:15:210
24775993412,19cyclictest0-21swapper/000:40:020
23062345,10sleep20-21swapper/220:42:032
149422345,10sleep30-21swapper/319:58:013
113702345,12sleep00-21swapper/021:04:550
106312345,10sleep30-21swapper/319:49:323
105592345,12sleep00-21swapper/019:48:360
61082335,10sleep30-21swapper/319:38:133
43412335,10sleep20-21swapper/219:35:122
308642335,10sleep00-21swapper/020:35:070
305632335,13sleep00-21swapper/020:34:390
296022335,10sleep00-21swapper/019:16:050
267812335,10sleep10-21swapper/119:12:561
24778993318,13cyclictest0-21swapper/323:40:373
24778993316,14cyclictest0-21swapper/300:20:313
24778993316,14cyclictest0-21swapper/300:20:313
24778993314,16cyclictest0-21swapper/322:03:283
2477799339,21cyclictest0-21swapper/222:55:162
24777993316,15cyclictest0-21swapper/200:12:212
24777993315,16cyclictest0-21swapper/222:35:282
2477699336,21cyclictest0-21swapper/120:10:261
2477699334,27cyclictest0-21swapper/122:50:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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