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2026-01-07 - 22:31
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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 rackcslot6.osadl.org (updated Wed Jan 07, 2026 12:46:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193928499386385,1cyclictest1936100-21kworker/7:107:10:017
1939270993810,380cyclictest0-21swapper/511:30:025
1939270993810,380cyclictest0-21swapper/511:10:015
1939270993810,380cyclictest0-21swapper/508:34:025
193927099380379,1cyclictest2069408-21kworker/5:111:04:025
193927099380379,1cyclictest1961123-21kworker/5:108:12:015
193927099380378,1cyclictest1961123-21kworker/5:107:47:015
1939270993800,1cyclictest0-21swapper/508:20:015
193927099379378,1cyclictest2069408-21kworker/5:111:53:015
193927099379378,1cyclictest2069408-21kworker/5:111:46:015
193927099379378,1cyclictest1961123-21kworker/5:108:27:025
193927099379378,1cyclictest1904172-21kworker/5:007:44:015
193927099379378,1cyclictest0-21swapper/508:04:015
193927099379377,1cyclictest1961123-21kworker/5:108:16:015
193927099379377,1cyclictest1961123-21kworker/5:107:57:015
193927099378377,1cyclictest2069408-21kworker/5:111:09:025
193927099378377,1cyclictest2036328-21kworker/5:010:12:015
193927099378377,1cyclictest1961123-21kworker/5:108:51:025
193927099378377,1cyclictest0-21swapper/512:11:025
193927099378377,1cyclictest0-21swapper/511:26:025
193927099378377,1cyclictest0-21swapper/510:43:025
193927099378377,1cyclictest0-21swapper/510:27:025
193927099378377,1cyclictest0-21swapper/507:23:025
193927099378377,1cyclictest0-21swapper/507:23:025
193928499377376,1cyclictest1955107-21kworker/7:210:45:027
193927099377376,1cyclictest2126572-21kworker/5:012:23:025
193927099377376,1cyclictest2069408-21kworker/5:112:07:025
193927099377376,1cyclictest2069408-21kworker/5:111:56:025
193927099377376,1cyclictest2024287-21kworker/5:209:48:015
193927099377376,1cyclictest2024287-21kworker/5:209:36:015
193927099377376,1cyclictest2024287-21kworker/5:209:33:015
193927099377376,1cyclictest1961123-21kworker/5:109:13:025
193927099377376,1cyclictest0-21swapper/511:22:025
193927099377376,1cyclictest0-21swapper/509:17:025
193928499376375,1cyclictest2075449-21kworker/7:011:20:027
193928499376375,1cyclictest1955107-21kworker/7:208:25:027
193927099376375,1cyclictest0-21swapper/507:13:025
193928499375374,1cyclictest2075449-21kworker/7:011:19:027
193928499375374,1cyclictest1955107-21kworker/7:209:31:017
193928499375374,1cyclictest1955107-21kworker/7:208:32:027
193928499375374,1cyclictest1955107-21kworker/7:207:45:027
193928499375374,1cyclictest0-21swapper/711:40:017
193928499375374,1cyclictest0-21swapper/711:40:017
193928499375374,1cyclictest0-21swapper/711:12:027
193928499375374,1cyclictest0-21swapper/710:50:027
193928499375374,1cyclictest0-21swapper/710:15:027
193928499375374,1cyclictest0-21swapper/710:15:017
193927099375374,1cyclictest1904172-21kworker/5:007:28:025
193928499374373,1cyclictest2075449-21kworker/7:011:38:027
193928499374373,1cyclictest0-21swapper/709:59:027
193928499374373,1cyclictest0-21swapper/709:27:017
193928499374373,1cyclictest0-21swapper/708:40:027
193928499374373,1cyclictest0-21swapper/708:15:027
193928499373372,1cyclictest2114548-21kworker/7:212:30:027
193928499373372,1cyclictest1955107-21kworker/7:210:30:027
193928499373372,1cyclictest0-21swapper/710:05:027
193928499373372,1cyclictest0-21swapper/709:50:027
193928499373372,1cyclictest0-21swapper/709:10:017
193928499373372,1cyclictest0-21swapper/707:20:027
193928499373372,1cyclictest0-21swapper/707:20:017
193928499373371,1cyclictest0-21swapper/712:20:017
193928499373371,1cyclictest0-21swapper/710:59:027
193928499372371,1cyclictest2114548-21kworker/7:212:01:027
193928499372371,1cyclictest1955107-21kworker/7:208:59:017
193928499372371,1cyclictest1955107-21kworker/7:207:52:027
193928499372371,1cyclictest0-21swapper/707:41:027
193928499372370,1cyclictest1955107-21kworker/7:210:21:027
193928499372370,1cyclictest1955107-21kworker/7:209:03:027
193928499372370,1cyclictest0-21swapper/712:19:017
193928499371370,1cyclictest2114548-21kworker/7:212:26:027
193928499371370,1cyclictest1955107-21kworker/7:209:39:027
193928499371370,1cyclictest1955107-21kworker/7:208:50:017
193928499371370,1cyclictest1955107-21kworker/7:208:39:027
193928499371370,1cyclictest1955107-21kworker/7:208:21:027
193928499371370,1cyclictest0-21swapper/712:13:017
193928499371370,1cyclictest0-21swapper/711:03:017
193928499371370,1cyclictest0-21swapper/710:04:027
193928499371370,1cyclictest0-21swapper/707:37:017
193928499371369,1cyclictest2075449-21kworker/7:011:49:017
193928499371369,1cyclictest2075449-21kworker/7:011:33:027
193928499370369,1cyclictest1955107-21kworker/7:207:56:017
193928499370369,1cyclictest1936100-21kworker/7:107:17:017
193928499370369,1cyclictest0-21swapper/709:06:017
193928499370369,1cyclictest0-21swapper/708:06:027
193928499370368,1cyclictest0-21swapper/712:37:027
193928499370368,1cyclictest0-21swapper/710:36:027
193928499369368,1cyclictest1955107-21kworker/7:210:13:027
193928499369368,1cyclictest1936100-21kworker/7:107:31:017
193928499369368,1cyclictest0-21swapper/711:27:027
193928499369368,1cyclictest0-21swapper/710:41:027
193928499369368,1cyclictest0-21swapper/709:43:017
193928499369368,1cyclictest0-21swapper/708:47:027
193928499369368,1cyclictest0-21swapper/708:11:027
193928499367366,1cyclictest1955107-21kworker/7:209:18:017
193926399340339,1cyclictest2167746-21kworker/4:007:29:024
193925699338337,1cyclictest0-21swapper/307:10:023
193925699329328,1cyclictest0-21swapper/311:20:013
193925699329328,1cyclictest0-21swapper/310:45:023
193925699329328,1cyclictest0-21swapper/308:25:013
193925699329327,1cyclictest0-21swapper/307:45:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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