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2026-04-18 - 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 Sat Apr 18, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27437211455,53sleep20-21swapper/219:09:572
27148211350,58sleep10-21swapper/119:06:191
27355210750,52sleep00-21swapper/019:08:580
53552970,8sleep02754899cyclictest00:30:330
2723428863,20sleep30-21swapper/319:07:243
124062870,1sleep115169-21stress23:33:291
27551995515,20cyclictest0-21swapper/322:41:203
27551995514,21cyclictest0-21swapper/323:13:233
27551995513,39cyclictest0-21swapper/323:25:153
27551995513,39cyclictest0-21swapper/300:29:193
27551995411,40cyclictest0-21swapper/321:25:343
80752530,1sleep315169-21stress23:22:533
275692530,1sleep215169-21stress22:52:432
27551995311,39cyclictest0-21swapper/322:50:113
2755199526,25cyclictest0-21swapper/300:30:293
2755199526,20cyclictest0-21swapper/322:10:163
27551995216,15cyclictest0-21swapper/322:35:153
2755199516,42cyclictest0-21swapper/300:35:343
27551995114,17cyclictest0-21swapper/323:50:283
27551995112,36cyclictest0-21swapper/322:30:293
2755199506,41cyclictest0-21swapper/322:45:113
27551995014,15cyclictest0-21swapper/323:16:493
27551995010,18cyclictest0-21swapper/322:20:193
27551995010,18cyclictest0-21swapper/322:20:183
2755199498,21cyclictest0-21swapper/321:15:253
2755199498,21cyclictest0-21swapper/321:15:243
2755199496,21cyclictest0-21swapper/323:05:003
2755199496,21cyclictest0-21swapper/323:05:003
27551994914,32cyclictest0-21swapper/323:55:333
27551994914,15cyclictest0-21swapper/300:15:233
2755199487,23cyclictest0-21swapper/323:09:383
2755199487,23cyclictest0-21swapper/323:09:373
2755199487,19cyclictest0-21swapper/300:10:153
2755199487,19cyclictest0-21swapper/300:10:143
2755199487,14cyclictest0-21swapper/321:30:323
2755199486,16cyclictest0-21swapper/323:47:233
2755199486,16cyclictest0-21swapper/323:47:223
27551994813,32cyclictest0-21swapper/321:23:283
2755199476,20cyclictest0-21swapper/322:05:273
2755199476,15cyclictest0-21swapper/321:35:313
27551994713,15cyclictest0-21swapper/323:40:173
27551994713,15cyclictest0-21swapper/323:40:173
27551994710,18cyclictest0-21swapper/320:06:003
27551994710,18cyclictest0-21swapper/320:05:593
27551994710,15cyclictest0-21swapper/300:22:563
27551994710,15cyclictest0-21swapper/300:22:563
2755199469,17cyclictest0-21swapper/320:30:223
2755199468,18cyclictest0-21swapper/319:27:153
2755199466,37cyclictest0-21swapper/300:05:353
2755199466,21cyclictest0-21swapper/321:55:103
2755199466,17cyclictest0-21swapper/321:40:113
27551994611,17cyclictest0-21swapper/322:25:333
27551994610,14cyclictest0-21swapper/322:02:493
2755199459,12cyclictest0-21swapper/322:16:093
2755199458,19cyclictest0-21swapper/320:16:553
2755199455,23cyclictest0-21swapper/320:20:463
27551994510,17cyclictest0-21swapper/320:00:113
2755199446,16cyclictest0-21swapper/323:35:173
2755199445,22cyclictest0-21swapper/320:59:043
2755199445,21cyclictest0-21swapper/321:10:273
2755199445,21cyclictest0-21swapper/321:10:263
2755199445,20cyclictest0-21swapper/321:50:293
27551994415,13cyclictest0-21swapper/320:41:473
27551994415,13cyclictest0-21swapper/319:39:073
27551994411,16cyclictest0-21swapper/319:10:173
27551994410,17cyclictest0-21swapper/319:46:003
2755199439,17cyclictest0-21swapper/319:43:443
2755199438,18cyclictest0-21swapper/319:15:183
2755199438,17cyclictest0-21swapper/320:12:403
2755199436,15cyclictest0-21swapper/321:45:173
2755199436,15cyclictest0-21swapper/321:45:173
2755199435,20cyclictest0-21swapper/320:37:493
2755199428,17cyclictest0-21swapper/321:03:063
2755199426,14cyclictest0-21swapper/320:45:203
27551994215,13cyclictest0-21swapper/319:54:273
2755199415,20cyclictest0-21swapper/319:59:193
2755199415,20cyclictest0-21swapper/319:31:293
27548994114,25cyclictest0-21swapper/021:30:270
2755199406,13cyclictest0-21swapper/323:30:133
2755199405,20cyclictest0-21swapper/320:25:443
27549994014,24cyclictest0-21swapper/122:46:521
2754899405,18cyclictest0-21swapper/000:02:150
27548994016,21cyclictest0-21swapper/023:40:550
27548994016,21cyclictest0-21swapper/023:40:550
2755199396,12cyclictest0-21swapper/322:55:173
27548993913,23cyclictest0-21swapper/021:15:120
27548993913,23cyclictest0-21swapper/021:15:120
2755199386,13cyclictest0-21swapper/300:00:123
2755199385,16cyclictest0-21swapper/321:07:193
2755199385,14cyclictest0-21swapper/319:22:213
27549993814,21cyclictest0-21swapper/122:15:471
27548993814,21cyclictest0-21swapper/022:36:170
27548993813,22cyclictest0-21swapper/000:16:370
27548993810,21cyclictest0-21swapper/020:01:220
325182375,15sleep20-21swapper/219:19:242
278182375,14sleep20-21swapper/220:21:152
2755199375,16cyclictest0-21swapper/320:50:453
27548993716,18cyclictest0-21swapper/023:55:190
105112375,14sleep20-21swapper/220:56:192
40252365,14sleep20-21swapper/220:40:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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