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2026-05-02 - 12:15
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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 Sat May 02, 2026 00:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16919212464,55sleep20-21swapper/219:09:102
16815211553,57sleep00-21swapper/019:07:480
16766211151,21sleep10-21swapper/119:07:121
434521100,1sleep24873-21stress23:36:502
434521100,1sleep24873-21stress23:36:492
16880210446,53sleep30-21swapper/319:08:383
17082994512,30cyclictest0-21swapper/021:27:460
17088994320,20cyclictest0-21swapper/323:22:163
45092397,12sleep10-21swapper/119:51:071
25852399,12sleep10-21swapper/119:49:351
17088993914,23cyclictest0-21swapper/323:05:113
17088993913,23cyclictest0-21swapper/323:25:293
17084993915,21cyclictest0-21swapper/222:54:432
17082993910,18cyclictest0-21swapper/000:25:230
68252388,12sleep10-21swapper/119:57:451
282502384,13sleep20-21swapper/220:46:372
17088993820,16cyclictest0-21swapper/321:37:043
17088993814,22cyclictest0-21swapper/321:50:003
17088993814,22cyclictest0-21swapper/321:49:593
17082993815,21cyclictest0-21swapper/022:06:190
82942375,13sleep10-21swapper/120:00:221
82942375,13sleep10-21swapper/120:00:221
50872375,13sleep30-21swapper/319:55:113
261272374,13sleep20-21swapper/220:41:492
260932374,13sleep20-21swapper/219:26:102
23552374,13sleep20-21swapper/219:46:402
218392375,12sleep20-21swapper/219:16:442
177822378,12sleep10-21swapper/120:25:001
1708899378,26cyclictest0-21swapper/323:00:133
1708899378,26cyclictest0-21swapper/323:00:123
1708499378,26cyclictest0-21swapper/200:09:372
1708499378,26cyclictest0-21swapper/200:09:372
17084993712,22cyclictest0-21swapper/223:07:052
17082993714,20cyclictest0-21swapper/023:03:080
17082993714,20cyclictest0-21swapper/023:03:080
90012364,13sleep30-21swapper/320:03:093
90012364,13sleep30-21swapper/320:03:093
306412364,13sleep20-21swapper/219:39:142
296252365,10sleep00-21swapper/020:50:160
219572365,13sleep30-21swapper/320:33:273
218292364,13sleep00-21swapper/020:31:490
175722365,11sleep00-21swapper/020:22:220
17088993617,16cyclictest0-21swapper/322:50:013
17082993612,21cyclictest0-21swapper/021:21:470
131702360,1sleep24871-21stress21:26:482
283442353,13sleep00-21swapper/020:47:490
262992354,13sleep10-21swapper/119:28:421
241082355,12sleep10-21swapper/119:23:131
199112353,13sleep00-21swapper/020:30:000
188222354,13sleep30-21swapper/319:10:313
17084993515,17cyclictest0-21swapper/222:24:442
17084993515,17cyclictest0-21swapper/222:24:432
17083993511,21cyclictest0-21swapper/100:29:561
168682353,11sleep20-21swapper/220:20:192
66442344,13sleep00-21swapper/019:55:360
4232345,10sleep00-21swapper/019:45:010
326492345,12sleep10-21swapper/120:57:201
303012343,11sleep20-21swapper/220:50:222
1708899347,24cyclictest0-21swapper/323:35:033
17088993411,21cyclictest0-21swapper/300:15:243
17084993415,17cyclictest0-21swapper/223:56:382
17084993414,17cyclictest0-21swapper/223:17:052
17084993412,19cyclictest0-21swapper/223:52:462
17084993411,21cyclictest0-21swapper/222:45:332
17083993415,16cyclictest0-21swapper/121:39:061
1708299348,20cyclictest0-21swapper/019:32:280
1708299347,24cyclictest0-21swapper/000:32:390
17082993416,17cyclictest0-21swapper/021:06:580
17082993416,15cyclictest0-21swapper/023:10:180
17082993415,17cyclictest0-21swapper/019:19:290
17082993412,19cyclictest0-21swapper/000:35:050
17082993410,18cyclictest0-21swapper/020:14:280
17082993410,18cyclictest0-21swapper/019:36:570
46972333,12sleep30-21swapper/321:08:453
3862333,12sleep00-21swapper/019:44:370
17088993319,12cyclictest0-21swapper/320:44:063
17088993316,14cyclictest0-21swapper/323:15:143
17088993315,15cyclictest0-21swapper/300:10:303
17088993315,15cyclictest0-21swapper/300:10:303
17088993314,16cyclictest0-21swapper/322:10:223
17088993314,16cyclictest0-21swapper/321:20:253
17088993313,18cyclictest0-21swapper/323:35:133
17088993313,18cyclictest0-21swapper/323:35:133
17088993311,20cyclictest0-21swapper/321:10:263
17088993311,20cyclictest0-21swapper/321:10:263
1708499339,21cyclictest0-21swapper/223:30:422
17084993315,15cyclictest0-21swapper/222:30:532
17084993315,15cyclictest0-21swapper/222:15:372
17084993315,15cyclictest0-21swapper/222:15:372
17084993315,15cyclictest0-21swapper/221:54:332
17084993315,15cyclictest0-21swapper/221:54:332
17084993315,15cyclictest0-21swapper/200:11:062
17084993315,15cyclictest0-21swapper/200:11:062
17084993310,12cyclictest0-21swapper/222:05:192
17082993317,14cyclictest0-21swapper/023:25:360
17082993316,15cyclictest0-21swapper/022:25:020
17082993310,18cyclictest0-21swapper/021:00:480
17082993310,18cyclictest0-21swapper/019:21:270
47832324,13sleep20-21swapper/221:09:522
284432323,13sleep30-21swapper/319:33:493
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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