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2026-08-22 - 23:19
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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 Sat Aug 22, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45442201185,11sleep30-21swapper/307:06:263
46702199182,13sleep00-21swapper/007:08:030
47162188173,11sleep10-21swapper/107:08:391
44862167150,13sleep20-21swapper/207:05:392
293592640,0sleep10-21swapper/109:40:161
500599101,7cyclictest0-21swapper/209:25:142
499999103,3cyclictest6974-21munin-run11:40:000
49999991,4cyclictest9763-21basename11:25:000
11409280,0sleep00-21swapper/009:47:190
50009970,6cyclictest0-21swapper/109:45:261
49999970,6cyclictest0-21swapper/007:55:110
49999970,3cyclictest13322-21perf10:05:010
50009961,3cyclictest0-21swapper/108:00:131
50099955,0cyclictest7983-21kworker/3:212:23:193
50099955,0cyclictest0-21swapper/312:29:373
50099955,0cyclictest0-21swapper/309:37:303
50099953,2cyclictest0-21swapper/312:05:363
50099950,5cyclictest9106-21ssh12:13:353
50099950,5cyclictest0-21swapper/311:26:543
50099950,5cyclictest0-21swapper/310:56:393
50099950,4cyclictest32087-21ssh11:35:213
50099950,4cyclictest21063-21ssh10:25:133
50059950,5cyclictest0-21swapper/211:32:272
50059950,5cyclictest0-21swapper/211:19:032
50059950,5cyclictest0-21swapper/210:17:482
50059950,5cyclictest0-21swapper/209:33:082
50059950,0cyclictest6247-21apt-get09:45:122
50059950,0cyclictest0-21swapper/211:40:532
50059950,0cyclictest0-21swapper/211:14:502
50009951,3cyclictest0-21swapper/112:20:111
50009951,2cyclictest0-21swapper/110:30:131
50009951,2cyclictest0-21swapper/110:05:131
50009951,2cyclictest0-21swapper/109:35:111
50009951,2cyclictest0-21swapper/109:20:131
50009951,2cyclictest0-21swapper/108:20:111
50009951,2cyclictest0-21swapper/108:05:141
50009950,5cyclictest0-21swapper/110:56:171
49999955,0cyclictest0-21swapper/010:32:470
49999954,1cyclictest22390-21idleruntime-cro11:15:010
49999951,1cyclictest14317-21cut12:00:000
49999950,5cyclictest0-21swapper/012:13:030
49999950,4cyclictest9573-21hddtemp_smartct09:30:160
9143240,0sleep20-21swapper/210:02:242
50099944,0cyclictest0-21swapper/308:24:433
50099943,1cyclictest7554-21ls07:15:013
50099943,1cyclictest40-21ksoftirqd/307:20:133
50099943,1cyclictest32110-21ssh10:30:173
50099940,4cyclictest597-21diskmemload11:10:103
50099940,4cyclictest0-21swapper/312:30:113
50099940,4cyclictest0-21swapper/312:15:123
50099940,4cyclictest0-21swapper/311:40:113
50099940,4cyclictest0-21swapper/310:40:123
50099940,4cyclictest0-21swapper/310:15:133
50099940,4cyclictest0-21swapper/310:10:113
50099940,4cyclictest0-21swapper/310:00:123
50099940,4cyclictest0-21swapper/309:45:123
50099940,4cyclictest0-21swapper/309:26:143
50099940,4cyclictest0-21swapper/309:15:123
50099940,4cyclictest0-21swapper/309:13:373
50099940,4cyclictest0-21swapper/308:34:193
50099940,4cyclictest0-21swapper/307:44:163
50099940,4cyclictest0-21swapper/307:25:103
50099940,3cyclictest8386-21taskset09:30:033
50099940,3cyclictest8134-21ssh11:56:133
50099940,3cyclictest5344-21ssh11:22:123
50099940,3cyclictest31793-21irqstats09:05:183
50099940,3cyclictest30823-21ssh10:45:403
50099940,3cyclictest28691-21/usr/sbin/munin09:40:223
50099940,3cyclictest28524-21latency_hist07:55:013
50099940,3cyclictest27220-21hddtemp_smartct09:55:163
50099940,3cyclictest27220-21hddtemp_smartct09:55:153
50099940,3cyclictest27109-21ssh11:50:073
50099940,3cyclictest26008-21cut07:50:013
50099940,3cyclictest24050-21ssh11:31:313
50099940,3cyclictest22611-21ssh11:15:013
50099940,3cyclictest21107-21cut07:40:003
50099940,3cyclictest209372sleep309:20:043
50099940,3cyclictest19508-21diskstats12:35:143
50099940,3cyclictest18427-21munin-run07:35:003
50099940,3cyclictest17256-21ssh11:45:083
50099940,3cyclictest15959-21/usr/sbin/munin12:00:163
50099940,3cyclictest15085-21ssh10:54:583
50099940,3cyclictest14708-21ssh10:05:143
50099940,3cyclictest14577-21ssh10:21:133
50099940,3cyclictest11093-21ssh10:35:433
50099940,0cyclictest0-21swapper/311:05:053
50099940,0cyclictest0-21swapper/311:00:513
50059944,0cyclictest0-21swapper/209:24:332
50059944,0cyclictest0-21swapper/209:13:482
50059943,1cyclictest0-21swapper/212:11:082
50059942,1cyclictest802-21snmpd11:08:282
50059941,2cyclictest68550irq/127-eth1-Tx11:45:112
50059940,4cyclictest597-21diskmemload12:33:382
50059940,4cyclictest597-21diskmemload11:22:582
50059940,4cyclictest5816-21apt-get10:50:132
50059940,4cyclictest0-21swapper/212:26:172
50059940,4cyclictest0-21swapper/212:15:592
50059940,4cyclictest0-21swapper/212:08:142
50059940,4cyclictest0-21swapper/212:00:122
50059940,4cyclictest0-21swapper/211:55:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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