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2026-06-04 - 07:41
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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 Thu Jun 04, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
90972207192,11sleep10-21swapper/119:09:121
90862194177,12sleep00-21swapper/019:09:030
88322193176,12sleep30-21swapper/319:05:453
9088211496,13sleep20-21swapper/219:09:042
304942460,0sleep10-21swapper/121:49:531
288172460,0sleep10-21swapper/123:39:511
72462440,0sleep00-21swapper/022:56:580
172042410,0sleep10-21swapper/100:05:171
182742390,0sleep30-21swapper/322:46:283
73552130,0sleep10-21swapper/121:54:181
934699123,3cyclictest20495-21sendmail-msp23:20:010
93469991,4cyclictest18975-21munin-run23:35:000
93499970,5cyclictest0-21swapper/221:50:122
93469971,3cyclictest31080-21perf20:15:000
93469960,3cyclictest8568-21perf21:55:020
93469960,3cyclictest15340-21munin-run00:05:000
93539955,0cyclictest6339-21kworker/3:123:30:583
93539955,0cyclictest6339-21kworker/3:120:54:123
93539955,0cyclictest6339-21kworker/3:120:31:493
93539955,0cyclictest6339-21kworker/3:120:09:283
93539955,0cyclictest6339-21kworker/3:119:47:033
93539955,0cyclictest0-21swapper/322:20:413
93539953,1cyclictest20585-21irqstats23:35:153
93539950,5cyclictest0-21swapper/321:42:513
93539950,0cyclictest0-21swapper/300:32:463
93499950,5cyclictest0-21swapper/223:01:282
93499950,5cyclictest0-21swapper/221:23:502
93499950,5cyclictest0-21swapper/221:10:532
93499950,4cyclictest14476-21users21:25:212
93499950,3cyclictest5814-21ssh00:31:422
93499950,3cyclictest28345-21ssh22:35:272
93499950,3cyclictest0-21swapper/222:18:022
93479951,3cyclictest0-21swapper/123:30:111
93479951,2cyclictest0-21swapper/122:40:111
93479951,2cyclictest0-21swapper/100:30:111
93479951,2cyclictest0-21swapper/100:15:121
93479950,5cyclictest0-21swapper/123:28:591
93479950,5cyclictest0-21swapper/121:23:171
93479950,5cyclictest0-21swapper/100:36:571
93479950,5cyclictest0-21swapper/100:36:571
93469954,1cyclictest21775-21munin-run19:45:000
93469950,5cyclictest0-21swapper/021:55:120
93469950,5cyclictest0-21swapper/021:27:470
93469950,5cyclictest0-21swapper/000:35:200
93469950,5cyclictest0-21swapper/000:35:200
93469950,4cyclictest0-21swapper/022:50:120
11433250,0sleep10-21swapper/123:46:351
93539944,0cyclictest0-21swapper/323:10:513
93539944,0cyclictest0-21swapper/322:50:393
93539944,0cyclictest0-21swapper/322:25:033
93539944,0cyclictest0-21swapper/321:56:583
93539944,0cyclictest0-21swapper/321:31:393
93539944,0cyclictest0-21swapper/321:31:393
93539944,0cyclictest0-21swapper/320:43:373
93539944,0cyclictest0-21swapper/300:06:353
93539943,1cyclictest13543-21ssh23:15:443
93539943,1cyclictest0-21swapper/319:20:493
93539942,1cyclictest8360-21ssh00:00:423
93539942,1cyclictest27584-21ssh00:10:193
93539942,1cyclictest19409-21ssh00:38:543
93539942,1cyclictest19409-21ssh00:38:533
93539940,4cyclictest0-21swapper/323:45:113
93539940,4cyclictest0-21swapper/323:20:113
93539940,4cyclictest0-21swapper/322:30:123
93539940,4cyclictest0-21swapper/322:15:123
93539940,4cyclictest0-21swapper/321:25:113
93539940,4cyclictest0-21swapper/321:18:073
93539940,3cyclictest436-21apt-get21:35:133
93539940,3cyclictest249292chrt21:14:403
93539940,3cyclictest23341-21cut19:50:103
93539940,3cyclictest23341-21cron00:25:013
93539940,3cyclictest2157-21dpkg22:55:013
93539940,3cyclictest17496-21sh23:02:013
93539940,3cyclictest15179-21apt-config21:10:023
93539940,3cyclictest14550-21latency_hist21:05:023
93499944,0cyclictest0-21swapper/223:00:012
93499944,0cyclictest0-21swapper/222:30:462
93499944,0cyclictest0-21swapper/222:13:102
93499944,0cyclictest0-21swapper/220:40:102
93499944,0cyclictest0-21swapper/219:40:132
93499943,1cyclictest29575-21apt-get22:05:132
93499942,2cyclictest11647-21basename21:40:142
93499942,1cyclictest7738-21ssh22:41:182
93499941,3cyclictest57150irq/125-eth000:20:182
93499940,4cyclictest7091-21sh23:45:012
93499940,4cyclictest27911-21apt-get22:20:122
93499940,4cyclictest25890-21ssh21:15:072
93499940,4cyclictest23586-21ssh00:08:522
93499940,4cyclictest22672-21ls21:45:192
93499940,4cyclictest11408-21ssh23:30:212
93499940,4cyclictest11379-21df23:15:122
93499940,4cyclictest11083-21/usr/sbin/munin21:55:202
93499940,4cyclictest0-21swapper/223:51:182
93499940,4cyclictest0-21swapper/223:10:052
93499940,4cyclictest0-21swapper/223:06:022
93499940,4cyclictest0-21swapper/222:25:472
93499940,4cyclictest0-21swapper/222:00:122
93499940,4cyclictest0-21swapper/221:35:132
93499940,4cyclictest0-21swapper/221:30:112
93499940,4cyclictest0-21swapper/221:30:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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