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2026-05-12 - 19:56
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot8.osadl.org (updated Tue May 12, 2026 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2182299847770,64cyclictest22277-21df_inode07:10:160
2182299847770,64cyclictest22277-21df_inode07:10:160
2182499820774,28cyclictest0-21swapper/107:10:161
2182499820774,28cyclictest0-21swapper/107:10:151
2182299461381,53cyclictest0-21swapper/008:31:180
2182299461381,53cyclictest0-21swapper/008:31:180
2182499460382,48cyclictest0-21swapper/108:31:181
2182499460382,48cyclictest0-21swapper/108:31:171
214722411390,15sleep00-21swapper/007:06:560
217632398378,13sleep10-21swapper/107:09:501
2182299349295,47cyclictest0-21swapper/007:40:210
2182499331259,56cyclictest1081-21strings07:40:201
228699780,5rtkit-daemon2285-21rtkit-daemon12:23:430
228699750,4rtkit-daemon2285-21rtkit-daemon10:56:020
228699750,4rtkit-daemon2285-21rtkit-daemon10:41:220
228699740,4rtkit-daemon2285-21rtkit-daemon12:01:370
228699740,4rtkit-daemon2285-21rtkit-daemon09:24:450
228699730,5rtkit-daemon2285-21rtkit-daemon07:20:140
228699730,4rtkit-daemon2285-21rtkit-daemon10:45:170
228699730,4rtkit-daemon2285-21rtkit-daemon08:05:191
228699720,32rtkit-daemon29415-21kworker/0:209:30:460
228699710,4rtkit-daemon2285-21rtkit-daemon11:47:331
228699710,4rtkit-daemon2285-21rtkit-daemon08:57:551
228699710,4rtkit-daemon2285-21rtkit-daemon08:51:241
154262713,7sleep015491-21df_inode12:30:140
228699700,4rtkit-daemon2285-21rtkit-daemon09:57:161
228699690,4rtkit-daemon2285-21rtkit-daemon09:54:101
228699690,4rtkit-daemon2285-21rtkit-daemon08:48:351
228699690,4rtkit-daemon2285-21rtkit-daemon08:48:341
228699680,4rtkit-daemon2285-21rtkit-daemon12:29:590
228699680,4rtkit-daemon2285-21rtkit-daemon11:52:581
140442660,4sleep1251rcuc/111:30:021
228699650,4rtkit-daemon2285-21rtkit-daemon08:10:281
21822996513,45cyclictest0-21swapper/011:09:460
2182299606,47cyclictest0-21swapper/009:15:290
2182299598,44cyclictest0-21swapper/011:29:460
284322584,12sleep00-21swapper/009:59:270
26972585,14sleep10-21swapper/111:09:281
228699580,4rtkit-daemon2285-21rtkit-daemon09:51:460
228699580,11rtkit-daemon0-21swapper/011:32:570
2182299578,32cyclictest0-21swapper/011:53:590
21822995727,24cyclictest0-21swapper/009:13:290
21822995720,26cyclictest0-21swapper/011:00:130
168102574,12sleep00-21swapper/009:37:290
21822995633,18cyclictest0-21swapper/011:17:520
21822995614,35cyclictest0-21swapper/010:05:220
21822995613,26cyclictest0-21swapper/012:05:170
52052554,12sleep10-21swapper/111:13:341
298952554,12sleep10-21swapper/111:57:421
2182299556,44cyclictest0-21swapper/010:30:160
2182299556,32cyclictest0-21swapper/007:20:010
2182299556,32cyclictest0-21swapper/007:20:010
21822995529,21cyclictest0-21swapper/009:46:030
21822995525,24cyclictest0-21swapper/012:19:130
213552554,12sleep10-21swapper/111:41:551
213552554,12sleep10-21swapper/111:41:541
244462545,12sleep00-21swapper/011:47:580
21822995422,26cyclictest0-21swapper/011:57:210
21822995419,30cyclictest0-21swapper/011:24:140
21822995418,31cyclictest0-21swapper/010:38:280
83102534,12sleep10-21swapper/111:19:411
66372534,12sleep10-21swapper/107:55:221
62792534,12sleep10-21swapper/110:16:081
2182299537,33cyclictest0-21swapper/011:38:110
2182299537,33cyclictest0-21swapper/011:38:100
21822995320,24cyclictest0-21swapper/010:51:040
204242534,12sleep00-21swapper/012:39:390
150252535,13sleep10-21swapper/108:20:121
150252535,13sleep10-21swapper/108:20:111
55992524,12sleep00-21swapper/012:11:260
36322524,12sleep00-21swapper/007:47:020
254662524,12sleep00-21swapper/008:48:480
254662524,12sleep00-21swapper/008:48:480
218512524,12sleep10-21swapper/109:45:481
2182299526,40cyclictest0-21swapper/009:10:000
2182299526,27cyclictest0-21swapper/010:25:040
2182299525,32cyclictest0-21swapper/009:25:220
21822995231,16cyclictest0-21swapper/007:50:230
21822995217,30cyclictest0-21swapper/011:40:390
21822995217,30cyclictest0-21swapper/011:40:380
21822995215,31cyclictest0-21swapper/010:22:000
21822995212,34cyclictest0-21swapper/010:04:270
168942525,15sleep10-21swapper/109:37:471
142832524,12sleep10-21swapper/112:27:421
106962524,12sleep10-21swapper/111:23:231
245742514,11sleep10-21swapper/107:15:241
245742514,11sleep10-21swapper/107:15:231
2182299515,40cyclictest0-21swapper/008:40:010
2182299515,40cyclictest0-21swapper/008:40:010
20122514,12sleep00-21swapper/010:10:070
196842514,12sleep10-21swapper/109:42:511
191312514,11sleep00-21swapper/009:40:580
102722512,7sleep110360-21timerandwakeup09:25:261
90892504,12sleep10-21swapper/108:02:181
4512504,11sleep10-21swapper/110:05:471
38172504,12sleep10-21swapper/107:48:521
324092504,12sleep10-21swapper/107:37:571
292932504,12sleep10-21swapper/109:00:011
287362504,12sleep10-21swapper/110:57:051
272362504,12sleep00-21swapper/008:53:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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