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2026-03-19 - 22:34
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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
Characteristics of the 100 highest latencies:
System rack1slot1.osadl.org (updated Thu Mar 19, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141112212148,51sleep00-21swapper/007:07:520
141122210178,21sleep10-21swapper/107:07:531
140812200162,25sleep20-21swapper/207:07:302
140152199160,26sleep30-21swapper/307:06:393
310892610,0sleep121-21ksoftirqd/111:44:521
187102180,0sleep20-21swapper/210:05:122
297592160,0sleep10-21swapper/110:19:131
1439099134,3cyclictest35-21ksoftirqd/310:10:133
14382991210,1cyclictest28-21ksoftirqd/207:20:002
1438299120,11cyclictest0-21swapper/208:40:212
1438299119,1cyclictest28-21ksoftirqd/210:25:002
1438299119,1cyclictest28-21ksoftirqd/209:15:012
14382991110,1cyclictest31163-21ssh11:01:342
1439099100,4cyclictest19723-21aten_r1power_po11:30:103
1436299101,4cyclictest6386-21/usr/sbin/munin08:00:010
1436299101,4cyclictest6386-21/usr/sbin/munin08:00:010
143909998,1cyclictest35-21ksoftirqd/311:50:003
143909998,1cyclictest15072-21sh09:19:593
143909993,5cyclictest18424-21kworker/u8:112:36:513
143829998,1cyclictest28-21ksoftirqd/210:35:002
143829997,1cyclictest28-21ksoftirqd/209:25:002
143829997,1cyclictest28-21ksoftirqd/209:00:012
143829997,1cyclictest28-21ksoftirqd/208:25:132
143829997,1cyclictest28-21ksoftirqd/208:05:002
143829996,2cyclictest8559-21df11:15:132
143829996,2cyclictest26795-21fschecks_time12:20:122
143829990,1cyclictest15228-21ls09:20:002
143629998,1cyclictest9-21ksoftirqd/012:08:540
143629990,5cyclictest15864-21latency_hist08:20:000
143909988,0cyclictest35-21ksoftirqd/311:05:183
143909987,1cyclictest35-21ksoftirqd/309:45:163
143909987,0cyclictest35-21ksoftirqd/311:10:123
143909986,1cyclictest707-21snmpd11:00:313
143909986,1cyclictest707-21snmpd10:50:253
143909986,1cyclictest707-21snmpd10:40:013
143909986,1cyclictest707-21snmpd10:06:023
143909986,1cyclictest707-21snmpd09:26:563
143909986,1cyclictest707-21snmpd09:00:163
143909986,1cyclictest707-21snmpd08:25:333
143909986,1cyclictest35-21ksoftirqd/309:55:133
143909986,1cyclictest35-21ksoftirqd/309:55:133
143909981,4cyclictest27244-21apt-get07:35:103
143909980,6cyclictest0-21swapper/312:15:093
143909980,5cyclictest7053-21diskmemload11:25:283
143829988,0cyclictest0-21swapper/210:01:102
143829987,1cyclictest28-21ksoftirqd/208:40:002
143829987,1cyclictest28-21ksoftirqd/207:45:132
143829987,1cyclictest28-21ksoftirqd/207:35:002
143829986,1cyclictest707-21snmpd07:59:142
143829986,1cyclictest707-21snmpd07:59:142
143829986,1cyclictest61650irq/122-eno111:45:132
143829986,1cyclictest61650irq/122-eno111:22:132
143829986,1cyclictest61650irq/122-eno109:50:152
143829986,1cyclictest61650irq/122-eno109:33:422
143829986,1cyclictest28-21ksoftirqd/211:40:162
143829986,1cyclictest28-21ksoftirqd/211:10:122
143829986,1cyclictest26457-21sensors10:55:182
143829984,3cyclictest23194-21cron11:35:002
143829984,2cyclictest240-21systemd-journal11:55:012
143829984,1cyclictest240-21systemd-journal08:10:012
143829980,4cyclictest707-21snmpd12:09:022
143749981,4cyclictest0-21swapper/107:42:431
143749981,3cyclictest0-21swapper/112:10:111
143629987,1cyclictest9-21ksoftirqd/010:25:410
143629986,1cyclictest707-21snmpd11:59:180
143629986,1cyclictest707-21snmpd10:16:390
143629986,1cyclictest707-21snmpd07:36:370
143629986,1cyclictest1041-21ssh11:45:560
143629980,7cyclictest3890-21tail09:45:150
143629980,7cyclictest30879-21ssh09:38:530
143629980,7cyclictest14651-21ssh09:19:070
143629980,7cyclictest1237-21ssh09:40:590
143629980,3cyclictest0-21swapper/009:55:100
143629980,3cyclictest0-21swapper/009:55:100
4348270,0sleep20-21swapper/210:27:202
143909977,0cyclictest35-21ksoftirqd/308:10:013
143909977,0cyclictest24078-21kworker/u8:012:24:443
143909976,1cyclictest35-21ksoftirqd/312:30:173
143909976,1cyclictest35-21ksoftirqd/311:35:123
143909976,1cyclictest35-21ksoftirqd/310:05:013
143909976,1cyclictest35-21ksoftirqd/308:50:093
143909976,1cyclictest35-21ksoftirqd/308:40:203
143909976,1cyclictest35-21ksoftirqd/308:00:013
143909976,1cyclictest35-21ksoftirqd/308:00:003
143909976,1cyclictest35-21ksoftirqd/307:15:123
143909976,0cyclictest7053-21diskmemload10:45:553
143909975,1cyclictest9830-21ssh09:53:113
143909975,1cyclictest8580-21ssh11:55:243
143909975,1cyclictest707-21snmpd11:51:213
143909975,1cyclictest707-21snmpd10:35:253
143909975,1cyclictest707-21snmpd10:34:343
143909975,1cyclictest707-21snmpd09:06:523
143909975,1cyclictest707-21snmpd08:10:073
143909975,1cyclictest707-21snmpd07:26:433
143909975,1cyclictest35-21ksoftirqd/308:35:143
143909975,1cyclictest16998-21cat08:20:143
143909970,6cyclictest26221-21ssh09:32:053
143909970,3cyclictest0-21swapper/311:22:053
143909970,3cyclictest0-21swapper/307:10:123
143829977,0cyclictest61650irq/122-eno111:26:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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