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2025-09-16 - 06:32
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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 rack6slot0.osadl.org (updated Tue Sep 16, 2025 01:01:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2137699265262,2cyclictest0-21swapper/2923:58:4822
2137699265262,2cyclictest0-21swapper/2923:58:4722
2137699265262,2cyclictest0-21swapper/2923:58:4722
2137699249218,18cyclictest11934-21inotify_reader23:15:1922
2137699249218,18cyclictest11934-21inotify_reader23:15:1922
2132899249245,3cyclictest0-21swapper/221:24:5012
2132899249245,3cyclictest0-21swapper/221:24:5012
2137699229226,2cyclictest0-21swapper/2922:58:1722
2137699229226,2cyclictest0-21swapper/2922:58:1722
2137699229226,2cyclictest0-21swapper/2922:58:1722
21370992102,186cyclictest38097-21TaskSchedulerSi20:10:2217
21370992102,186cyclictest38097-21TaskSchedulerSi20:10:2217
2135399204191,11cyclictest0-21swapper/1722:44:149
2135399204191,11cyclictest0-21swapper/1722:44:149
2132699204155,39cyclictest0-21swapper/020:05:020
2132699204155,39cyclictest0-21swapper/020:05:020
2136499203114,78cyclictest8337-21NetworkChangeNo22:10:2014
2136499203114,78cyclictest8337-21NetworkChangeNo22:10:2014
2136499203114,78cyclictest8337-21NetworkChangeNo22:10:2014
213389920319,178cyclictest0-21swapper/723:45:1837
213389920319,178cyclictest0-21swapper/723:45:1837
2137099199157,36cyclictest0-21swapper/2422:04:4917
2137099199157,36cyclictest0-21swapper/2422:04:4917
2137099199157,36cyclictest0-21swapper/2422:04:4917
2132699197180,15cyclictest0-21swapper/021:27:060
2132699197180,15cyclictest0-21swapper/021:27:060
2132699197180,15cyclictest0-21swapper/021:27:050
213709919310,80cyclictest11274-21TaskSchedulerSi22:30:1917
213709919310,80cyclictest11274-21TaskSchedulerSi22:30:1817
213709919310,80cyclictest11274-21TaskSchedulerSi22:30:1817
2135499193179,8cyclictest0-21swapper/1822:31:0710
2135499193179,8cyclictest0-21swapper/1822:31:0710
2135499193179,8cyclictest0-21swapper/1822:31:0710
21346991937,179cyclictest4670-21TaskSchedulerSi23:30:176
21346991937,179cyclictest4670-21TaskSchedulerSi23:30:176
2132899192186,5cyclictest0-21swapper/221:48:4912
2132899192186,5cyclictest0-21swapper/221:48:4912
2132899192186,5cyclictest0-21swapper/221:48:4912
21381991915,88cyclictest31926-21NetworkChangeNo00:10:2227
21381991915,88cyclictest31926-21NetworkChangeNo00:10:2227
21381991915,88cyclictest31926-21NetworkChangeNo00:10:2227
213369919136,143cyclictest15983-21CPU35
213369919136,143cyclictest15983-21CPU35
213369919136,143cyclictest15983-21CPU35
21360991896,179cyclictest0-21swapper/1920:00:1911
21360991896,179cyclictest0-21swapper/1920:00:1911
2132899189159,20cyclictest0-21swapper/221:07:4712
2132899189159,20cyclictest0-21swapper/221:07:4612
2132699189103,76cyclictest4908-21CPU0
2132699189103,76cyclictest4908-21CPU0
21364991872,171cyclictest11900-21CPU14
21364991872,171cyclictest11900-21CPU14
2132699187158,13cyclictest0-21swapper/021:16:020
2132699187158,13cyclictest0-21swapper/021:16:020
2138399186150,14cyclictest11901-21CPU29
2138399186150,14cyclictest11901-21CPU29
2138399186150,14cyclictest11901-21CPU29
213759918523,56cyclictest22669-21NetworkChangeNo21:30:2021
213759918523,56cyclictest22669-21NetworkChangeNo21:30:2021
213759918523,56cyclictest22669-21NetworkChangeNo21:30:2021
213759918523,56cyclictest22669-21NetworkChangeNo21:30:2021
2137399185181,3cyclictest0-21swapper/2620:26:0219
2137399185181,3cyclictest0-21swapper/2620:26:0219
2137399185123,37cyclictest15982-21CPU19
2137399185123,37cyclictest15982-21CPU19
2137399185123,37cyclictest15982-21CPU19
21339991849,138cyclictest33742-21TaskSchedulerSi21:05:1738
21339991849,138cyclictest33742-21TaskSchedulerSi21:05:1738
213269918423,159cyclictest0-21swapper/000:10:260
213269918423,159cyclictest0-21swapper/000:10:260
213269918423,159cyclictest0-21swapper/000:10:260
2138799183170,11cyclictest0-21swapper/3820:10:4332
2138799183170,11cyclictest0-21swapper/3820:10:4332
2137699183175,6cyclictest0-21swapper/2922:25:3622
2137699183175,6cyclictest0-21swapper/2922:25:3622
2137699183175,6cyclictest0-21swapper/2922:25:3522
2137699183172,6cyclictest0-21swapper/2923:25:1322
2137699183172,6cyclictest0-21swapper/2923:25:1322
2137699183172,6cyclictest0-21swapper/2923:25:1322
21337991831,6cyclictest0-21swapper/600:15:1936
21337991831,6cyclictest0-21swapper/600:15:1936
21337991831,6cyclictest0-21swapper/600:15:1936
2132699183110,60cyclictest4908-21CPU0
2132699183110,60cyclictest4908-21CPU0
2138799182178,2cyclictest0-21swapper/3800:31:3532
2138799182178,2cyclictest0-21swapper/3800:31:3532
2138799182178,2cyclictest0-21swapper/3800:31:3432
2132699182120,29cyclictest0-21swapper/021:53:440
2132699182120,29cyclictest0-21swapper/021:53:430
2132699182120,29cyclictest0-21swapper/021:53:430
21381991811,107cyclictest0-21swapper/3320:35:2127
21381991811,107cyclictest0-21swapper/3320:35:2127
2137399181164,14cyclictest0-21swapper/2620:37:5119
2137399181164,14cyclictest0-21swapper/2620:37:5119
2135399181150,21cyclictest4911-21CPU9
2135399181150,21cyclictest4911-21CPU9
2135399181150,21cyclictest4911-21CPU9
213369918152,105cyclictest15982-21CPU35
213369918152,105cyclictest15982-21CPU35
213369918152,105cyclictest15982-21CPU35
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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