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2026-05-01 - 14:17
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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 rackcslot6.osadl.org (updated Fri May 01, 2026 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179472999382380,1cyclictest1883813-21kworker/5:021:41:025
179472999381379,1cyclictest2016080-21kworker/5:023:45:025
179472999381379,1cyclictest1975350-21kworker/5:122:57:025
179472999381379,1cyclictest0-21swapper/522:01:015
1794729993810,1cyclictest0-21swapper/519:23:025
179472199381380,1cyclictest2071925-21kworker/4:000:27:024
179472199381379,2cyclictest1902523-21kworker/4:022:23:024
179472199381379,1cyclictest1998508-21kworker/4:123:31:024
179472199381378,2cyclictest0-21swapper/419:29:024
179472999380378,2cyclictest2016080-21kworker/5:023:44:025
179472999380377,2cyclictest1975350-21kworker/5:123:05:025
1794729993800,379cyclictest0-21swapper/523:59:025
179472199380379,1cyclictest2071925-21kworker/4:000:30:024
179472199380379,1cyclictest1998508-21kworker/4:123:24:014
179472199380378,1cyclictest1998508-21kworker/4:123:11:024
179472199380378,1cyclictest1816591-21kworker/4:120:55:024
1794721993800,380cyclictest0-21swapper/420:27:024
1794721993800,1cyclictest0-21swapper/420:33:024
1794721993800,1cyclictest0-21swapper/420:33:024
179472999379378,1cyclictest2016080-21kworker/5:023:52:025
179472999379378,1cyclictest1920816-21kworker/5:222:37:025
179472999379378,1cyclictest1920816-21kworker/5:222:29:025
179472999379378,1cyclictest1822603-21kworker/5:020:35:025
179472999379377,1cyclictest1867725-21kworker/5:121:14:025
179472199379378,1cyclictest1816591-21kworker/4:121:05:024
179472199379377,1cyclictest1902523-21kworker/4:022:32:024
179472199379377,1cyclictest1816591-21kworker/4:120:21:024
179472999378377,1cyclictest1975350-21kworker/5:122:42:025
179472999378376,1cyclictest1920816-21kworker/5:221:56:015
179472999378376,1cyclictest1822603-21kworker/5:020:15:025
179472999378376,1cyclictest0-21swapper/520:45:025
179472999378376,1cyclictest0-21swapper/500:39:025
179472999378376,1cyclictest0-21swapper/500:39:025
179472199378377,1cyclictest1828946-21kworker/4:019:45:014
179472199378377,1cyclictest1816591-21kworker/4:120:42:024
179472199378377,1cyclictest1816591-21kworker/4:120:37:024
179472199378376,1cyclictest1816591-21kworker/4:120:03:024
179472999377376,1cyclictest2016080-21kworker/5:000:11:015
179472999377376,1cyclictest1920816-21kworker/5:222:21:015
179472999377376,1cyclictest1822603-21kworker/5:020:05:025
179472999377376,1cyclictest0-21swapper/523:01:015
179472999377375,1cyclictest0-21swapper/521:48:025
179472999377375,1cyclictest0-21swapper/520:43:025
179472999377375,1cyclictest0-21swapper/520:24:025
179472999376375,1cyclictest2087234-21kworker/5:200:24:025
179472999376375,1cyclictest1883813-21kworker/5:021:38:025
179472999376375,1cyclictest1797721-21kworker/5:219:35:025
179472999376375,1cyclictest0-21swapper/500:17:015
179472199376375,1cyclictest1902523-21kworker/4:022:19:024
179472199376375,1cyclictest1816591-21kworker/4:119:53:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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