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2026-09-18 - 05:35
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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 Sep 18, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120272236221,11sleep10-21swapper/119:05:021
141082202186,12sleep30-21swapper/319:08:053
141152193167,21sleep00-21swapper/019:08:090
140922117100,12sleep20-21swapper/219:07:522
227472480,0sleep322743-21wget22:05:123
18702470,0sleep10-21swapper/121:38:081
208232420,0sleep10-21swapper/123:09:551
310292130,0sleep031030-21cpuspeed_turbos21:20:130
144459992,3cyclictest22184-21perf22:05:010
144459981,5cyclictest0-21swapper/023:30:130
144459980,4cyclictest14803-21awk21:45:010
144539970,6cyclictest0-21swapper/320:15:113
144459974,2cyclictest0-21swapper/000:30:100
144539965,1cyclictest29117-21kworker/3:000:29:353
144499965,1cyclictest15815-21ntpq22:50:192
144469960,6cyclictest0-21swapper/123:49:431
144459960,3cyclictest20977-21munin-run23:10:010
14772250,0sleep10-21swapper/122:00:221
144539955,0cyclictest29117-21kworker/3:023:55:593
144539955,0cyclictest29117-21kworker/3:023:00:013
144539955,0cyclictest29117-21kworker/3:022:48:493
144539955,0cyclictest29117-21kworker/3:021:19:163
144539955,0cyclictest29117-21kworker/3:020:45:393
144539955,0cyclictest29117-21kworker/3:020:23:153
144539954,1cyclictest0-21swapper/322:14:083
144539950,5cyclictest0-21swapper/321:33:313
144539950,4cyclictest31108-21ntp_states22:25:153
144499955,0cyclictest31-21ksoftirqd/222:45:022
144499955,0cyclictest31-21ksoftirqd/221:20:122
144499950,5cyclictest0-21swapper/222:44:212
144499950,5cyclictest0-21swapper/222:31:402
144499950,5cyclictest0-21swapper/221:54:182
144499950,5cyclictest0-21swapper/219:47:422
144499950,5cyclictest0-21swapper/219:39:592
144499950,5cyclictest0-21swapper/200:16:082
144499950,3cyclictest0-21swapper/200:10:152
144499950,1cyclictest27422-21ssh23:29:432
144469951,2cyclictest0-21swapper/121:45:111
144469950,5cyclictest0-21swapper/121:42:241
144469950,5cyclictest0-21swapper/100:22:441
144459950,3cyclictest0-21swapper/023:52:570
22710240,0sleep30-21swapper/322:20:503
144539944,0cyclictest0-21swapper/300:20:513
144539942,1cyclictest19399-21ssh23:25:143
144539941,3cyclictest802-21snmpd00:33:143
144539941,3cyclictest6301-21cat19:55:153
144539941,2cyclictest0-21swapper/319:50:113
144539940,4cyclictest4821-21ssh23:01:003
144539940,4cyclictest30393-21ssh00:36:423
144539940,4cyclictest13499-21ssh22:33:053
144539940,4cyclictest12523-21apt-get22:00:013
144539940,4cyclictest0-21swapper/323:50:143
144539940,4cyclictest0-21swapper/323:35:103
144539940,4cyclictest0-21swapper/323:20:123
144539940,4cyclictest0-21swapper/323:20:113
144539940,4cyclictest0-21swapper/323:10:113
144539940,4cyclictest0-21swapper/321:56:483
144539940,4cyclictest0-21swapper/321:50:113
144539940,4cyclictest0-21swapper/321:49:583
144539940,4cyclictest0-21swapper/321:35:113
144539940,4cyclictest0-21swapper/321:27:353
144539940,4cyclictest0-21swapper/321:10:133
144539940,4cyclictest0-21swapper/320:25:113
144539940,4cyclictest0-21swapper/319:45:113
144539940,4cyclictest0-21swapper/300:04:063
144539940,3cyclictest9291-21latency_hist00:09:593
144539940,3cyclictest7463-21users21:40:233
144539940,3cyclictest5690-21ssh21:23:483
144539940,3cyclictest4095-21ntpq20:55:163
144539940,3cyclictest30316-21cut20:44:593
144539940,3cyclictest2953-21ssh23:16:393
144539940,3cyclictest27495-21df22:40:153
144539940,3cyclictest26580-21cat22:40:013
144539940,3cyclictest21902-21ssh23:43:013
144539940,3cyclictest18449-21ssh00:14:393
144539940,3cyclictest17136-21expr19:15:003
144539940,3cyclictest14096-21ssh22:50:003
144539940,1cyclictest16918-21munin-node19:15:013
144539940,0cyclictest0-21swapper/323:47:153
144499944,0cyclictest0-21swapper/223:34:412
144499944,0cyclictest0-21swapper/221:45:162
144499942,1cyclictest6322-21ssh00:25:002
144499941,1cyclictest0-21swapper/222:55:132
144499941,1cyclictest0-21swapper/200:35:122
144499940,4cyclictest3981-21memory19:50:162
144499940,4cyclictest17499-21munin-run21:30:012
144499940,4cyclictest0-21swapper/223:55:122
144499940,4cyclictest0-21swapper/223:41:092
144499940,4cyclictest0-21swapper/223:17:142
144499940,4cyclictest0-21swapper/223:05:112
144499940,4cyclictest0-21swapper/223:01:392
144499940,4cyclictest0-21swapper/222:25:102
144499940,4cyclictest0-21swapper/222:15:132
144499940,4cyclictest0-21swapper/222:10:112
144499940,4cyclictest0-21swapper/222:06:392
144499940,4cyclictest0-21swapper/222:00:572
144499940,4cyclictest0-21swapper/221:57:092
144499940,4cyclictest0-21swapper/220:50:592
144499940,4cyclictest0-21swapper/220:40:122
144499940,4cyclictest0-21swapper/219:20:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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