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2026-08-31 - 04:03
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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 31, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290032192176,12sleep10-21swapper/119:08:231
289062189172,12sleep30-21swapper/319:07:093
290902186170,12sleep00-21swapper/019:09:320
287962170153,12sleep20-21swapper/219:05:432
23412450,0sleep00-21swapper/023:25:150
162172160,0sleep014958-21/usr/sbin/munin22:10:170
255692110,1sleep20-21swapper/223:53:452
217602110,0sleep00-21swapper/023:19:040
5882290,0sleep00-21swapper/021:32:390
292979982,3cyclictest7719-21perf23:45:010
2407280,0sleep30-21swapper/322:03:413
293099971,5cyclictest0-21swapper/300:20:113
292979970,3cyclictest7401-21perf20:35:010
2851270,0sleep10-21swapper/100:31:111
293099960,5cyclictest10984-21fschecks_time21:35:163
293099960,0cyclictest0-21swapper/323:50:123
293049961,4cyclictest0-21swapper/220:05:112
292979963,3cyclictest31751-21kworker/0:122:06:050
292979963,3cyclictest31751-21kworker/0:122:06:050
293099952,3cyclictest3987-21ssh22:36:453
293099952,3cyclictest3566-21ssh23:42:213
293099952,3cyclictest17310-21ssh23:00:133
293099951,3cyclictest802-21snmpd23:16:263
293099950,5cyclictest26415-21ssh23:37:333
293099950,5cyclictest0-21swapper/323:10:213
293099950,5cyclictest0-21swapper/323:08:353
293099950,5cyclictest0-21swapper/322:55:033
293099950,5cyclictest0-21swapper/322:47:383
293099950,5cyclictest0-21swapper/322:26:263
293099950,5cyclictest0-21swapper/322:19:153
293099950,5cyclictest0-21swapper/322:13:213
293099950,5cyclictest0-21swapper/319:30:123
293099950,5cyclictest0-21swapper/300:31:243
293099950,5cyclictest0-21swapper/300:12:563
293099950,5cyclictest0-21swapper/300:02:163
293099950,0cyclictest0-21swapper/319:25:023
293099950,0cyclictest0-21swapper/300:07:043
293049953,2cyclictest31845-21kworker/2:200:23:492
293049950,5cyclictest7658-21ssh21:50:112
293049950,5cyclictest0-21swapper/223:33:392
293029951,2cyclictest0-21swapper/120:30:121
293029950,5cyclictest0-21swapper/123:59:141
293029950,5cyclictest0-21swapper/121:49:021
293029950,5cyclictest0-21swapper/121:38:411
293029950,0cyclictest0-21swapper/100:05:211
292979955,0cyclictest0-21swapper/023:20:440
292979952,3cyclictest31751-21kworker/0:120:35:130
292979952,2cyclictest31751-21kworker/0:121:13:090
292979950,5cyclictest0-21swapper/023:05:530
292979950,5cyclictest0-21swapper/021:38:440
293099944,0cyclictest0-21swapper/322:40:133
293099943,1cyclictest6353-21grep19:25:163
293099943,1cyclictest4697-21cron20:30:003
293099941,3cyclictest29217-21ssh22:50:063
293099941,3cyclictest0-21swapper/323:57:493
293099941,3cyclictest0-21swapper/321:15:013
293099941,2cyclictest0-21swapper/321:45:123
293099941,2cyclictest0-21swapper/319:10:113
293099941,2cyclictest0-21swapper/300:15:133
293099941,1cyclictest0-21swapper/320:45:113
293099940,4cyclictest15419-21ssh21:53:583
293099940,4cyclictest0-21swapper/323:45:133
293099940,4cyclictest0-21swapper/323:20:133
293099940,4cyclictest0-21swapper/322:05:043
293099940,4cyclictest0-21swapper/322:05:043
293099940,4cyclictest0-21swapper/321:28:363
293099940,4cyclictest0-21swapper/320:55:113
293099940,4cyclictest0-21swapper/320:24:003
293099940,4cyclictest0-21swapper/320:10:123
293099940,4cyclictest0-21swapper/320:00:123
293099940,4cyclictest0-21swapper/319:52:173
293099940,3cyclictest752-21runrttasks19:15:143
293099940,3cyclictest32396-21ssh21:30:043
293099940,3cyclictest28949-21ssh21:11:193
293099940,3cyclictest27367-21latency_hist20:10:013
293099940,3cyclictest26082-21ssh00:26:343
293099940,3cyclictest25097-21cat21:10:023
293099940,3cyclictest24909-21diskmemload00:35:003
293099940,3cyclictest2242-21ssh22:20:053
293099940,3cyclictest19798-21ssh21:40:013
293099940,3cyclictest13491-21cut21:20:163
293099940,3cyclictest12377-21ssh23:30:173
293099940,3cyclictest0-21swapper/323:25:013
293099940,3cyclictest0-21swapper/320:35:113
293099940,0cyclictest0-21swapper/322:30:453
293049944,0cyclictest5831-21ssh23:26:582
293049944,0cyclictest0-21swapper/223:55:122
293049944,0cyclictest0-21swapper/223:47:452
293049944,0cyclictest0-21swapper/223:00:032
293049944,0cyclictest0-21swapper/221:59:482
293049944,0cyclictest0-21swapper/221:15:082
293049944,0cyclictest0-21swapper/220:41:312
293049944,0cyclictest0-21swapper/200:18:102
293049942,1cyclictest7122-21ssh00:00:182
293049942,1cyclictest31629-21ssh00:30:012
293049942,1cyclictest23039-21ssh22:14:102
293049941,2cyclictest0-21swapper/223:15:122
293049941,2cyclictest0-21swapper/222:35:122
293049941,2cyclictest0-21swapper/221:00:092
293049941,2cyclictest0-21swapper/219:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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