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2025-12-25 - 00:46
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Dec 24, 2025 12:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
124192237221,11sleep10-21swapper/107:07:021
123592188171,12sleep30-21swapper/307:06:163
123362184166,13sleep00-21swapper/007:05:570
125642174156,13sleep20-21swapper/207:08:552
128439982,3cyclictest3810-21basename11:10:000
128439970,4cyclictest5789-21munin-run08:00:010
128569962,4cyclictest15390-21kworker/3:208:15:023
128569962,4cyclictest15390-21kworker/3:207:56:223
128569962,4cyclictest15390-21kworker/3:207:41:453
128569962,4cyclictest15390-21kworker/3:207:39:573
128569962,4cyclictest15390-21kworker/3:207:33:223
128439960,1cyclictest22651-21sensors07:25:190
128569955,0cyclictest15390-21kworker/3:210:49:533
128569955,0cyclictest15390-21kworker/3:210:05:083
128569955,0cyclictest15390-21kworker/3:209:42:443
128569955,0cyclictest15390-21kworker/3:209:09:113
128569955,0cyclictest15390-21kworker/3:207:50:463
128569952,3cyclictest15390-21kworker/3:208:01:273
128569952,3cyclictest15390-21kworker/3:207:16:393
128569951,4cyclictest15390-21kworker/3:208:20:033
128569951,4cyclictest15390-21kworker/3:208:10:443
128569951,4cyclictest15390-21kworker/3:207:45:023
128569951,4cyclictest15390-21kworker/3:207:29:563
128569950,4cyclictest0-21swapper/309:00:133
128569950,0cyclictest0-21swapper/307:10:193
128519952,1cyclictest0-21swapper/211:25:122
128519950,5cyclictest26313-21apt-get11:55:142
128519950,5cyclictest0-21swapper/210:11:032
128519950,5cyclictest0-21swapper/207:10:182
128469951,2cyclictest0-21swapper/112:35:121
128469951,2cyclictest0-21swapper/111:20:131
128469951,2cyclictest0-21swapper/107:40:111
128439952,2cyclictest0-21swapper/012:10:130
128439952,2cyclictest0-21swapper/009:00:130
128439951,3cyclictest13685-21/usr/sbin/munin12:35:140
128439951,2cyclictest0-21swapper/011:55:130
128439951,2cyclictest0-21swapper/011:40:100
128439951,2cyclictest0-21swapper/009:35:160
128439951,2cyclictest0-21swapper/008:00:120
128439950,5cyclictest0-21swapper/010:45:160
22367240,0sleep10-21swapper/111:45:161
128569944,0cyclictest15390-21kworker/3:208:46:443
128569944,0cyclictest0-21swapper/312:26:293
128569944,0cyclictest0-21swapper/307:20:203
128569943,1cyclictest25035-21ntpq08:35:163
128569942,2cyclictest15390-21kworker/3:212:35:593
128569942,2cyclictest15390-21kworker/3:212:32:083
128569942,2cyclictest15390-21kworker/3:212:23:523
128569942,2cyclictest15390-21kworker/3:212:15:383
128569942,2cyclictest15390-21kworker/3:212:10:553
128569942,2cyclictest15390-21kworker/3:212:05:443
128569942,2cyclictest15390-21kworker/3:212:04:143
128569942,2cyclictest15390-21kworker/3:211:55:463
128569942,2cyclictest15390-21kworker/3:211:52:253
128569942,2cyclictest15390-21kworker/3:211:41:143
128569942,2cyclictest15390-21kworker/3:211:33:033
128569942,2cyclictest15390-21kworker/3:211:20:463
128569942,2cyclictest15390-21kworker/3:211:17:423
128569942,2cyclictest15390-21kworker/3:211:11:073
128569942,2cyclictest15390-21kworker/3:211:01:103
128569942,2cyclictest15390-21kworker/3:210:50:033
128569942,2cyclictest15390-21kworker/3:210:42:223
128569942,2cyclictest15390-21kworker/3:210:35:023
128569942,2cyclictest15390-21kworker/3:210:33:183
128569942,2cyclictest15390-21kworker/3:210:27:073
128569942,2cyclictest15390-21kworker/3:210:20:483
128569942,2cyclictest15390-21kworker/3:210:15:503
128569942,2cyclictest15390-21kworker/3:210:10:023
128569942,2cyclictest15390-21kworker/3:209:50:203
128569942,2cyclictest15390-21kworker/3:209:48:153
128569942,2cyclictest15390-21kworker/3:209:38:263
128569942,2cyclictest15390-21kworker/3:209:30:483
128569942,2cyclictest15390-21kworker/3:209:27:173
128569942,2cyclictest15390-21kworker/3:209:17:483
128569942,2cyclictest15390-21kworker/3:209:10:363
128569942,2cyclictest15390-21kworker/3:208:50:293
128569942,2cyclictest15390-21kworker/3:208:30:023
128569942,1cyclictest32083-21perl09:55:153
128569942,1cyclictest0-21swapper/308:55:133
128569941,3cyclictest15390-21kworker/3:208:05:243
128569941,1cyclictest0-21swapper/311:25:123
128569941,1cyclictest0-21swapper/308:25:113
128569940,4cyclictest16413-21apt-get11:35:123
128569940,4cyclictest0-21swapper/310:57:003
128569940,4cyclictest0-21swapper/310:00:423
128569940,1cyclictest28487-21latency_hist08:45:013
128519943,1cyclictest5297-21ntp_states11:10:182
128519943,1cyclictest25928-21awk10:50:002
128519943,1cyclictest24462-21sort08:35:132
128519942,2cyclictest22069-21gltestperf08:30:292
128519941,1cyclictest0-21swapper/208:45:122
128519940,4cyclictest31271-21apt-get12:05:122
128519940,4cyclictest29962-21memory09:50:192
128519940,4cyclictest2628-21pmu-power12:10:192
128519940,4cyclictest19996-21ntp_states10:35:202
128519940,4cyclictest0-21swapper/212:15:102
128519940,4cyclictest0-21swapper/211:20:192
128519940,4cyclictest0-21swapper/208:26:222
128519940,3cyclictest31917-21df_inode08:50:142
128519940,3cyclictest13451-21latency_hist12:35:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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