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2025-11-21 - 23:20
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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 Fri Nov 21, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236272203187,11sleep10-21swapper/107:08:191
236972201185,12sleep00-21swapper/007:09:110
234352179163,12sleep30-21swapper/307:05:493
237412174156,13sleep20-21swapper/207:09:462
116292430,0sleep10-21swapper/112:36:241
71582420,0sleep10-21swapper/109:51:381
278062410,0sleep20-21swapper/211:23:262
18162370,0sleep21818-21gltestperf11:10:132
121222110,0sleep10-21swapper/109:21:471
239229982,3cyclictest16934-21sendmail-msp08:00:010
18017280,0sleep10-21swapper/111:18:331
239229970,4cyclictest20353-21munin-run11:20:010
239229961,4cyclictest0-21swapper/009:55:120
239229960,5cyclictest0-21swapper/011:35:020
239339955,0cyclictest55950irq/130-eth012:37:543
239339955,0cyclictest26536-21kworker/3:211:43:123
239339955,0cyclictest26536-21kworker/3:209:06:283
239339955,0cyclictest26536-21kworker/3:208:21:393
239339955,0cyclictest26536-21kworker/3:208:10:293
239339955,0cyclictest26536-21kworker/3:207:25:413
239339955,0cyclictest0-21swapper/311:08:323
239339950,5cyclictest0-21swapper/310:23:363
239339950,5cyclictest0-21swapper/309:21:283
239339950,5cyclictest0-21swapper/309:11:003
239339950,3cyclictest0-21swapper/308:50:113
239299955,0cyclictest0-21swapper/211:03:262
239299954,1cyclictest24343-21dump-pmu-power08:15:012
239299951,2cyclictest0-21swapper/208:05:092
239299950,5cyclictest0-21swapper/210:32:442
239299950,5cyclictest0-21swapper/209:10:102
239299950,5cyclictest0-21swapper/208:39:222
239299950,4cyclictest14411-21hddtemp_smartct12:05:162
239279950,5cyclictest0-21swapper/112:11:291
239279950,5cyclictest0-21swapper/110:42:521
239279950,3cyclictest0-21swapper/109:55:111
239229955,0cyclictest0-21swapper/008:15:160
239229951,4cyclictest21867-21munin-run08:10:010
239229950,5cyclictest0-21swapper/010:14:280
239229950,5cyclictest0-21swapper/009:22:060
239229950,1cyclictest29306-21munin-run08:25:000
239229950,0cyclictest0-21swapper/012:37:470
239339944,0cyclictest0-21swapper/311:03:193
239339944,0cyclictest0-21swapper/310:33:213
239339943,1cyclictest12192-21/usr/sbin/munin07:50:133
239339942,1cyclictest26597-21diskstats07:15:013
239339942,1cyclictest24775-21ssh11:21:313
239339940,4cyclictest388-21users11:25:203
239339940,4cyclictest28802-21df_inode10:35:133
239339940,4cyclictest0-21swapper/312:30:133
239339940,4cyclictest0-21swapper/312:20:133
239339940,4cyclictest0-21swapper/312:16:483
239339940,4cyclictest0-21swapper/311:57:023
239339940,4cyclictest0-21swapper/311:35:123
239339940,4cyclictest0-21swapper/310:10:103
239339940,4cyclictest0-21swapper/309:50:083
239339940,4cyclictest0-21swapper/309:42:173
239339940,4cyclictest0-21swapper/309:25:253
239339940,4cyclictest0-21swapper/309:15:113
239339940,4cyclictest0-21swapper/308:25:123
239339940,4cyclictest0-21swapper/307:35:133
239339940,3cyclictest32664-21cat10:05:013
239339940,3cyclictest3136-21dpkg10:55:013
239339940,3cyclictest28586-21perl09:30:143
239339940,3cyclictest25574-21sh10:50:063
239339940,3cyclictest18342-21ssh10:45:403
239339940,3cyclictest16302-21ssh09:56:063
239339940,3cyclictest14600-21irqstats12:05:183
239339940,3cyclictest12866-21ssh09:38:433
239339940,3cyclictest12331-21ntp_states11:15:173
239339940,2cyclictest21059-21cpuspeed_turbos12:25:113
239339940,1cyclictest7260-21/usr/sbin/munin07:40:193
239339940,1cyclictest21434-21hddtemp_smartct10:15:153
239339940,0cyclictest0-21swapper/310:07:523
239299944,0cyclictest0-21swapper/212:00:192
239299944,0cyclictest0-21swapper/211:55:052
239299944,0cyclictest0-21swapper/210:42:292
239299944,0cyclictest0-21swapper/210:06:322
239299944,0cyclictest0-21swapper/209:50:052
239299944,0cyclictest0-21swapper/209:45:352
239299943,1cyclictest28002-21grep07:15:152
239299942,2cyclictest714-21snmpd08:40:582
239299942,2cyclictest19012-21ssh11:19:092
239299941,3cyclictest714-21snmpd10:35:052
239299941,2cyclictest18215-21sh11:35:012
239299941,2cyclictest0-21swapper/209:55:122
239299941,2cyclictest0-21swapper/207:55:112
239299941,2cyclictest0-21swapper/207:45:102
239299941,2cyclictest0-21swapper/207:20:102
239299940,4cyclictest19196-21ssh10:46:112
239299940,4cyclictest12066-21memory12:20:182
239299940,4cyclictest10527-21apt10:10:112
239299940,4cyclictest0-21swapper/212:25:292
239299940,4cyclictest0-21swapper/212:15:122
239299940,4cyclictest0-21swapper/210:55:532
239299940,4cyclictest0-21swapper/210:50:122
239299940,4cyclictest0-21swapper/210:20:122
239299940,4cyclictest0-21swapper/210:15:112
239299940,4cyclictest0-21swapper/210:00:372
239299940,4cyclictest0-21swapper/209:35:072
239299940,4cyclictest0-21swapper/208:55:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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