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2026-01-02 - 08:31
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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 rack8slot4.osadl.org (updated Fri Jan 02, 2026 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3973702227172,17sleep30-21swapper/319:09:383
3952542227172,17sleep40-21swapper/419:07:064
3951822225192,21sleep60-21swapper/619:06:026
3951682225170,43sleep10-21swapper/119:05:501
3973722220190,19sleep50-21swapper/519:09:395
3951782219187,21sleep20-21swapper/219:05:592
3951292213184,18sleep00-21swapper/019:05:160
3952572207177,19sleep70-21swapper/719:07:087
397637996820,24cyclictest0-21swapper/223:26:002
397634994421,23cyclictest0-21swapper/123:26:031
39764299350,34cyclictest0-21swapper/422:18:144
397652993327,5cyclictest511804-21latency_hist22:40:017
397642993326,6cyclictest0-21swapper/421:15:004
39765299320,28cyclictest0-21swapper/720:43:167
39765299320,28cyclictest0-21swapper/700:03:177
397652993128,3cyclictest16450irq/4-ttyS020:15:017
39764299310,30cyclictest555192-21idleruntime-cro00:00:014
39764299310,0cyclictest0-21swapper/400:33:154
397637993129,2cyclictest278-21plymouthd00:00:002
397652993028,1cyclictest519882-21sh22:55:017
397652993027,0cyclictest0-21swapper/723:43:157
397652993027,0cyclictest0-21swapper/723:43:157
397652993027,0cyclictest0-21swapper/719:18:157
397652993027,0cyclictest0-21swapper/700:40:017
39765299300,29cyclictest566772-21apt-get00:21:417
397649993027,2cyclictest473928-21touch21:30:006
39764999300,29cyclictest525283-21idleruntime-cro23:05:016
39764999300,29cyclictest0-21swapper/620:25:016
39764699300,29cyclictest403564-21cron19:20:025
397642993027,2cyclictest511817-21munin-run22:40:014
39764299300,29cyclictest563541-21dump-pmu-power00:15:024
39764299300,29cyclictest490261-21sh22:00:014
39764299300,29cyclictest454998-21idleruntime-cro20:55:014
397637993030,0cyclictest0-21swapper/222:40:002
39763799300,29cyclictest487573-21idleruntime-cro21:55:002
39763499300,29cyclictest0-21swapper/119:43:161
39763499300,28cyclictest0-21swapper/122:48:141
397652992927,1cyclictest0-21swapper/720:50:027
39765299290,28cyclictest0-21swapper/721:08:177
397649992926,2cyclictest501036-21sh22:20:016
39764999290,28cyclictest417687-21http19:48:146
39764999290,28cyclictest406910-21apt-get19:28:126
39764999290,28cyclictest0-21swapper/620:45:016
39764999290,1cyclictest0-21swapper/619:45:026
39764699290,29cyclictest417053-21munin-run19:45:025
397642992927,1cyclictest0-21swapper/421:20:004
39764299290,28cyclictest487582-21munin-run21:55:014
39764299290,28cyclictest0-21swapper/423:20:014
39764299290,28cyclictest0-21swapper/420:58:134
397640992927,1cyclictest0-21swapper/321:48:143
39764099290,28cyclictest0-21swapper/322:08:133
39764099290,1cyclictest0-21swapper/320:13:143
39763799290,1cyclictest514510-21sh22:45:002
397634992927,1cyclictest0-21swapper/123:45:021
397634992927,1cyclictest0-21swapper/123:45:011
397634992927,1cyclictest0-21swapper/120:48:141
39763499290,28cyclictest0-21swapper/121:43:161
39763499290,28cyclictest0-21swapper/121:28:131
39763499290,28cyclictest0-21swapper/120:53:151
39763499290,28cyclictest0-21swapper/120:33:161
39763499290,28cyclictest0-21swapper/120:13:141
39763499290,1cyclictest0-21swapper/123:38:151
397631992927,1cyclictest527971-21dump-pmu-power23:10:000
397631992927,1cyclictest278-21plymouthd21:10:000
39763199290,28cyclictest0-21swapper/022:53:150
39763199290,28cyclictest0-21swapper/020:08:140
39763199290,28cyclictest0-21swapper/019:33:130
39763199290,1cyclictest0-21swapper/020:20:010
397652992827,1cyclictest468458-21sh21:20:017
397652992826,1cyclictest0-21swapper/721:43:177
39765299280,28cyclictest0-21swapper/720:55:027
39765299280,0cyclictest0-21swapper/721:23:127
397649992825,2cyclictest541457-21munin-run23:35:016
397649992825,2cyclictest541457-21munin-run23:35:016
397649992824,3cyclictest506428-21cron22:30:006
397646992828,0cyclictest0-21swapper/521:08:165
397646992826,1cyclictest436542-21apt-get20:23:145
39764699280,27cyclictest0-21swapper/522:48:145
39764699280,27cyclictest0-21swapper/521:33:145
397642992828,0cyclictest0-21swapper/422:55:004
397642992826,1cyclictest501697-21apt-get22:23:154
397642992822,5cyclictest541447-21latency_hist23:35:024
397642992822,5cyclictest541447-21latency_hist23:35:014
39764299280,1cyclictest0-21swapper/400:28:154
397640992826,1cyclictest0-21swapper/300:23:143
39764099280,28cyclictest0-21swapper/320:35:013
39764099280,0cyclictest0-21swapper/323:50:023
39764099280,0cyclictest0-21swapper/323:50:023
397637992827,1cyclictest436545-21http20:23:162
397637992826,1cyclictest574430-21dpkg00:35:012
397637992826,1cyclictest0-21swapper/222:58:152
397637992825,2cyclictest1-21systemd23:50:022
397637992825,2cyclictest1-21systemd23:50:012
39763799280,28cyclictest0-21swapper/222:18:132
397634992827,1cyclictest1-21systemd22:40:001
397634992827,1cyclictest0-21swapper/123:33:171
397634992827,1cyclictest0-21swapper/123:33:161
397634992826,1cyclictest564183-21apt-get00:18:141
397634992826,1cyclictest0-21swapper/121:38:141
397634992826,1cyclictest0-21swapper/100:23:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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