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2026-09-05 - 16:33
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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 50 highest latencies:
System rackeslot2.osadl.org (updated Sat Sep 05, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234289421610,2sleep30-21swapper/309:49:483
25055132970,2sleep20-21swapper/211:20:062
24389442310,2sleep20-21swapper/210:44:432
2107925992912,8cyclictest0-21swapper/010:26:090
210792599271,12cyclictest2566845-21diskmemload11:54:550
210792599271,11cyclictest1-21systemd11:45:020
210792599261,20cyclictest2523483-21seq11:30:510
210792599252,13cyclictest2557851-21unixbench-2d11:49:490
210792599251,14cyclictest1-21systemd12:35:010
210792599251,13cyclictest2374042-21runrttasks10:06:250
210792599251,13cyclictest0-21swapper/012:27:220
22132912410,3phc2sys0-21swapper/311:24:023
2107926992417,2cyclictest82050irq/121-eno109:34:201
210792599245,14cyclictest1188-21runrttasks09:56:320
210792599241,13cyclictest2601932-21runrttasks12:14:570
210792599241,13cyclictest2461740-21runrttasks10:55:320
210792599241,13cyclictest2349021-21sh09:54:270
210792599241,13cyclictest2295609-21runrttasks09:23:280
210792599241,13cyclictest2187045-21runrttasks08:09:210
210792599241,13cyclictest1188-21runrttasks10:01:210
210792599241,12cyclictest1188-21runrttasks09:29:180
210792599240,18cyclictest2611571-21taskset12:20:590
210792599240,18cyclictest2241827-21taskset08:45:040
210792599240,14cyclictest2603039-21runrttasks12:16:390
210792599240,14cyclictest2418674-21seq10:32:420
210792599240,14cyclictest2166166-21taskset07:52:580
210792599240,13cyclictest2489733-21runrttasks11:14:120
2447398230,2rtkit-daemon0-21swapper/111:52:121
210792599235,11cyclictest0-21swapper/010:12:450
210792599234,8cyclictest0-21swapper/009:37:130
210792599234,13cyclictest1188-21runrttasks08:12:550
210792599231,17cyclictest2453488-21sh10:51:480
210792599231,17cyclictest2179906-21taskset08:01:390
210792599231,16cyclictest2137664-21python307:29:490
210792599231,13cyclictest2497547-21ssh11:17:040
210792599231,13cyclictest2275962-21diskmemload09:10:360
210792599231,13cyclictest2124649-21taskset07:21:070
210792599231,12cyclictest2427939-21taskset10:38:460
210792599231,12cyclictest2248738-21taskset08:50:090
210792599231,12cyclictest2228317-21taskset08:38:430
210792599231,12cyclictest2221280-21runrttasks08:32:050
210792599231,12cyclictest1188-21runrttasks10:40:180
210792599230,18cyclictest2577364-21taskset12:03:030
210792599230,18cyclictest2400175-21taskset10:20:360
210792599230,18cyclictest2262614-21taskset09:01:150
210792599230,18cyclictest2152256-21taskset07:41:070
210792599230,18cyclictest2108250-21taskset07:11:130
210792599230,18cyclictest1188-21runrttasks08:29:260
210792599230,14cyclictest2330288-21runrttasks09:42:080
210792599230,14cyclictest2172902-21taskset07:55:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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