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2026-08-30 - 12:59
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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 rackcslot8.osadl.org (updated Sun Aug 30, 2026 00:48:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273913200,311ptp4l0-21swapper/119:07:351
141112295285,7sleep250-21swapper/2519:05:2318
18276991956,123cyclictest0-21swapper/900:18:3331
182249918321,152cyclictest0-21swapper/100:25:211
182249918321,138cyclictest0-21swapper/119:45:131
182249918321,138cyclictest0-21swapper/119:45:131
182249916621,90cyclictest0-21swapper/123:45:161
182249916120,105cyclictest0-21swapper/121:45:001
182249916021,104cyclictest0-21swapper/122:30:131
18276991596,124cyclictest0-21swapper/921:54:0231
182249915721,81cyclictest0-21swapper/121:35:551
183099915420,108cyclictest0-21swapper/1423:58:156
182249915421,81cyclictest0-21swapper/122:50:451
183469914452,57cyclictest0-21swapper/2123:59:3014
182569914433,110cyclictest0-21swapper/622:34:5828
183099914318,47cyclictest0-21swapper/1400:33:356
182569914333,75cyclictest0-21swapper/622:24:3828
18336991420,82cyclictest0-21swapper/1919:55:1311
18336991420,82cyclictest0-21swapper/1919:55:1311
182569914232,104cyclictest0-21swapper/600:10:1128
182569914229,83cyclictest0-21swapper/622:44:2528
182569914130,101cyclictest0-21swapper/621:56:1928
182899914028,78cyclictest0-21swapper/1121:30:123
18282991400,85cyclictest0-21swapper/1021:50:162
18282991400,83cyclictest0-21swapper/1022:50:222
18242991401,86cyclictest0-21swapper/421:45:5626
183469913930,71cyclictest0-21swapper/2121:59:1414
182569913928,101cyclictest0-21swapper/623:20:1428
183469913830,69cyclictest0-21swapper/2121:18:0514
183469913829,65cyclictest0-21swapper/2121:20:2914
18309991380,80cyclictest0-21swapper/1400:17:336
182569913828,79cyclictest0-21swapper/621:50:1428
182249913821,85cyclictest0-21swapper/123:36:581
183469913741,56cyclictest0-21swapper/2123:40:3114
183469913731,64cyclictest0-21swapper/2119:30:2714
183469913731,64cyclictest0-21swapper/2119:30:2714
183469913730,67cyclictest0-21swapper/2122:14:4414
183099913748,53cyclictest0-21swapper/1420:59:486
183039913725,43cyclictest0-21swapper/1321:41:495
183469913648,54cyclictest0-21swapper/2123:13:5114
183469913630,70cyclictest0-21swapper/2122:26:3014
183469913627,66cyclictest0-21swapper/2120:10:1314
18303991360,86cyclictest0-21swapper/1319:25:125
18303991360,86cyclictest0-21swapper/1319:25:125
183469913545,54cyclictest0-21swapper/2121:27:0514
183469913536,61cyclictest0-21swapper/2100:33:1014
182959913514,76cyclictest0-21swapper/1200:09:544
182249913520,84cyclictest0-21swapper/123:29:291
330891134126,6phc2sys0-21swapper/219:09:5612
183099913430,68cyclictest0-21swapper/1421:45:156
183099913427,64cyclictest0-21swapper/1419:30:346
183099913427,64cyclictest0-21swapper/1419:30:346
183469913330,63cyclictest0-21swapper/2121:35:4314
183469913329,65cyclictest0-21swapper/2121:32:3114
18346991330,83cyclictest0-21swapper/2123:31:0514
183099913329,65cyclictest0-21swapper/1422:58:276
183099913327,67cyclictest0-21swapper/1400:38:566
183099913327,67cyclictest0-21swapper/1400:38:566
183099913316,47cyclictest0-21swapper/1422:50:586
182569913327,105cyclictest0-21swapper/600:34:1628
182249913338,62cyclictest0-21swapper/121:47:281
182249913328,66cyclictest0-21swapper/119:20:111
182249913328,66cyclictest0-21swapper/119:20:111
183469913246,62cyclictest0-21swapper/2122:45:1214
183469913228,62cyclictest0-21swapper/2122:52:4114
18309991320,81cyclictest0-21swapper/1422:05:006
182249913221,82cyclictest0-21swapper/122:21:531
182249913221,72cyclictest0-21swapper/100:16:481
183469913139,56cyclictest0-21swapper/2123:36:3114
183469913131,69cyclictest0-21swapper/2123:20:2414
183469913131,63cyclictest0-21swapper/2100:39:0314
183469913131,63cyclictest0-21swapper/2100:39:0314
183469913130,59cyclictest0-21swapper/2122:23:5014
183469913129,63cyclictest0-21swapper/2100:25:0914
183469913127,61cyclictest0-21swapper/2119:10:2214
183469913127,61cyclictest0-21swapper/2119:10:2214
183099913156,64cyclictest0-21swapper/1400:14:546
183099913130,78cyclictest0-21swapper/1421:58:356
183099913129,68cyclictest0-21swapper/1421:43:056
183099913116,89cyclictest0-21swapper/1420:20:156
182959913124,85cyclictest0-21swapper/1221:38:104
182249913128,69cyclictest0-21swapper/120:50:171
18219991310,79cyclictest0-21swapper/023:03:490
184029913011,70cyclictest0-21swapper/3121:30:3325
183469913051,67cyclictest0-21swapper/2121:41:3614
183469913031,66cyclictest0-21swapper/2100:02:4214
183469913030,63cyclictest0-21swapper/2100:10:4314
183469913029,59cyclictest0-21swapper/2122:38:3114
183099913028,67cyclictest0-21swapper/1421:27:036
182569913020,103cyclictest0-21swapper/622:03:3328
182249913057,64cyclictest0-21swapper/100:32:181
182249913028,69cyclictest0-21swapper/121:33:021
182249913028,67cyclictest0-21swapper/122:48:201
182249913027,70cyclictest0-21swapper/123:05:431
182249913027,68cyclictest0-21swapper/121:55:101
182249913027,68cyclictest0-21swapper/121:28:581
182199913044,52cyclictest0-21swapper/023:17:470
184029912965,43cyclictest27952-21kworker/31:419:30:1925
184029912965,43cyclictest27952-21kworker/31:419:30:1925
184029912950,56cyclictest0-21swapper/3123:08:2125
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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