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2026-08-24 - 16:56
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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 Mon Aug 24, 2026 12:44:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
54982203187,12sleep30-21swapper/307:05:573
56402193177,11sleep10-21swapper/107:07:471
56092184166,13sleep00-21swapper/007:07:230
54772166148,13sleep20-21swapper/207:05:392
83082460,0sleep10-21swapper/111:23:441
270972110,0sleep10-21swapper/111:00:141
60169973,4cyclictest14703-21cron12:00:010
60169972,5cyclictest24131-21munin-run08:50:000
60169971,3cyclictest8516-21perf10:35:010
60169970,6cyclictest0-21swapper/011:25:120
60279966,0cyclictest40-21ksoftirqd/307:40:003
60169962,4cyclictest21663-21munin-run08:45:010
60279955,0cyclictest20321-21kworker/3:011:02:153
60279955,0cyclictest20321-21kworker/3:010:17:273
60279955,0cyclictest20321-21kworker/3:009:55:053
60279950,4cyclictest9286-21ssh12:30:113
60229955,0cyclictest0-21swapper/212:39:242
60229955,0cyclictest0-21swapper/209:39:072
60229955,0cyclictest0-21swapper/207:25:152
60229953,2cyclictest31-21ksoftirqd/211:50:112
60229952,3cyclictest31-21ksoftirqd/211:10:132
60229951,2cyclictest0-21swapper/209:40:132
60229950,5cyclictest0-21swapper/211:20:062
60229950,5cyclictest0-21swapper/209:58:282
60229950,0cyclictest81rcu_preempt10:55:112
60229950,0cyclictest0-21swapper/212:19:452
60229950,0cyclictest0-21swapper/211:17:202
60209951,2cyclictest0-21swapper/111:40:131
60209950,5cyclictest0-21swapper/110:54:011
60209950,5cyclictest0-21swapper/109:49:251
60209950,5cyclictest0-21swapper/109:27:441
60209950,5cyclictest0-21swapper/108:20:121
60169955,0cyclictest0-21swapper/011:47:410
60169951,4cyclictest802-21snmpd12:29:310
60169950,5cyclictest0-21swapper/009:26:240
60169950,4cyclictest0-21swapper/008:30:110
485250,0sleep30-21swapper/310:46:363
60279944,0cyclictest40-21ksoftirqd/309:15:123
60279944,0cyclictest20321-21kworker/3:011:24:403
60279944,0cyclictest0-21swapper/311:54:513
60279943,1cyclictest5283-21ssh09:11:053
60279942,1cyclictest5375-21ssh11:55:133
60279942,1cyclictest3487-21ssh11:05:023
60279942,1cyclictest16215-21ssh10:55:083
60279942,1cyclictest13545-21ssh10:20:193
60279942,1cyclictest0-21swapper/308:20:113
60279941,3cyclictest4552-21apt-get08:10:133
60279941,2cyclictest0-21swapper/309:40:123
60279941,2cyclictest0-21swapper/308:00:123
60279941,1cyclictest0-21swapper/307:30:093
60279940,4cyclictest32133-21diskstats10:30:153
60279940,4cyclictest21548-21munin-run12:20:003
60279940,4cyclictest0-21swapper/312:25:113
60279940,3cyclictest8143-21ssh11:40:083
60279940,3cyclictest6954-21ssh10:50:113
60279940,3cyclictest5850-21sh10:00:203
60279940,3cyclictest4039-21ssh12:10:193
60279940,3cyclictest32489-21ssh11:19:483
60279940,3cyclictest24202-21ssh12:20:233
60279940,3cyclictest20458-21cat11:30:023
60279940,3cyclictest19082-21apt-get12:35:123
60279940,3cyclictest17827-21ssh10:06:173
60279940,3cyclictest17815-21ssh11:45:023
60279940,3cyclictest17711-21ssh11:28:273
60279940,3cyclictest12091-21ssh09:30:483
60279940,3cyclictest0-21swapper/308:30:003
60279940,1cyclictest9893-21ssh10:35:143
60279940,1cyclictest19942-21fschecks_time09:35:133
60279940,1cyclictest1742-21ssh09:25:333
60229944,0cyclictest0-21swapper/212:31:422
60229944,0cyclictest0-21swapper/208:00:192
60229943,1cyclictest6895-21grep08:15:002
60229943,1cyclictest32187-21ntpq11:35:182
60229943,1cyclictest31-21ksoftirqd/210:30:182
60229943,1cyclictest29792-21cpuspeed07:55:132
60229943,1cyclictest14987-21diskstats08:30:142
60229941,3cyclictest802-21snmpd10:08:122
60229940,4cyclictest7583-21memory10:50:142
60229940,4cyclictest7377-21ntp_states07:10:182
60229940,4cyclictest23303-21python10:25:202
60229940,4cyclictest0-21swapper/211:58:072
60229940,4cyclictest0-21swapper/211:40:122
60229940,4cyclictest0-21swapper/211:30:122
60229940,4cyclictest0-21swapper/211:25:062
60229940,4cyclictest0-21swapper/211:00:132
60229940,4cyclictest0-21swapper/210:11:372
60229940,4cyclictest0-21swapper/209:45:302
60229940,4cyclictest0-21swapper/209:32:502
60229940,4cyclictest0-21swapper/209:20:322
60229940,3cyclictest547-21sh12:25:152
60229940,3cyclictest4111-21ssh10:00:012
60229940,3cyclictest25013-21/usr/sbin/munin12:05:162
60229940,3cyclictest22585-21df12:20:112
60229940,3cyclictest18990-21/usr/sbin/munin10:40:132
60229940,3cyclictest18600-21df11:45:112
60229940,3cyclictest17244-21ssh09:17:292
60229940,3cyclictest12853-21memory10:20:162
60229940,3cyclictest10371-21ssh10:19:332
60229940,2cyclictest0-21swapper/208:20:112
60229940,1cyclictest81rcu_preempt10:35:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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