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2026-03-19 - 17:52
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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 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
143829976,1cyclictest61650irq/122-eno112:35:112
143829976,1cyclictest61650irq/122-eno112:10:202
143829976,1cyclictest61650irq/122-eno111:35:002
143829976,1cyclictest61650irq/122-eno111:05:082
143829976,1cyclictest61650irq/122-eno110:15:132
143829976,1cyclictest61650irq/122-eno109:00:122
143829976,1cyclictest61650irq/122-eno107:20:112
143829976,1cyclictest28-21ksoftirqd/208:35:002
143829976,1cyclictest28-21ksoftirqd/207:40:132
143829975,1cyclictest61650irq/122-eno110:50:152
143829975,1cyclictest61650irq/122-eno109:55:102
143829975,1cyclictest61650irq/122-eno109:55:092
143829975,1cyclictest3336-21ssh12:30:392
143829975,1cyclictest28-21ksoftirqd/210:45:132
143829975,1cyclictest15732-21ntpq07:10:172
143829971,6cyclictest0-21swapper/209:35:352
143829971,4cyclictest707-21snmpd08:10:122
143829970,2cyclictest0-21swapper/209:25:102
143749970,4cyclictest0-21swapper/110:53:351
143749970,4cyclictest0-21swapper/109:50:521
143629976,1cyclictest577-1kworker/u9:210:23:030
143629975,1cyclictest707-21snmpd09:06:250
143629975,1cyclictest707-21snmpd09:00:100
143629975,1cyclictest707-21snmpd08:50:240
143629975,1cyclictest707-21snmpd08:35:240
143629975,1cyclictest707-21snmpd07:26:070
143629975,1cyclictest17428-21ssh10:02:470
143629973,3cyclictest2884-21apt-get11:50:110
143629973,2cyclictest21168-21/usr/sbin/munin10:50:180
143629972,1cyclictest16118-21/usr/sbin/munin08:20:180
143629971,5cyclictest8262-21ssh11:15:130
143629971,5cyclictest733-21sshd10:30:460
143629971,1cyclictest25825-21ssh10:55:130
143629971,0cyclictest0-21swapper/011:10:110
143629970,6cyclictest9500-21diskstats08:05:120
143629970,6cyclictest8884-21ssh09:50:430
143629970,6cyclictest7053-21diskmemload11:40:130
143629970,6cyclictest26665-21fschecks_count12:20:120
143629970,6cyclictest20588-21ssh12:11:250
143629970,6cyclictest20393-21ssh11:30:130
143629970,6cyclictest11772-21ssh10:36:290
143629970,6cyclictest0-21swapper/011:05:100
143629970,6cyclictest0-21swapper/009:30:120
143629970,6cyclictest0-21swapper/009:20:170
143629970,6cyclictest0-21swapper/009:10:100
143629970,1cyclictest7053-21diskmemload12:00:120
143629970,1cyclictest7053-21diskmemload09:27:430
143629970,1cyclictest5980-21perl12:35:130
143629970,1cyclictest4737-21ssh12:34:220
143629970,1cyclictest30856-21sh11:00:450
143629970,1cyclictest25317-21ssh12:18:420
143629970,1cyclictest24657-21ssh10:11:310
143629970,1cyclictest14782-21ssh11:23:090
143629970,1cyclictest0-21swapper/011:25:140
143629970,1cyclictest0-21swapper/010:40:090
143629970,1cyclictest0-21swapper/010:05:130
615260,0sleep10-21swapper/111:45:201
143909966,0cyclictest35-21ksoftirqd/310:15:003
143909965,1cyclictest8485-21sshd08:01:463
143909965,1cyclictest35-21ksoftirqd/312:10:113
143909965,1cyclictest35-21ksoftirqd/312:00:133
143909965,1cyclictest35-21ksoftirqd/310:55:123
143909965,1cyclictest35-21ksoftirqd/309:15:003
143909965,1cyclictest35-21ksoftirqd/307:30:113
143909965,1cyclictest32503-21fschecks_count07:45:153
143909965,1cyclictest31270-21cat10:20:153
143909965,1cyclictest29962-21ssh12:25:073
143909965,1cyclictest28707-21ssh11:40:143
143909965,1cyclictest16503-21ssh12:05:493
143909965,1cyclictest10275-21ssh11:16:303
143909964,1cyclictest707-21snmpd08:17:203
143909964,1cyclictest3693-21ssh10:25:343
143909964,1cyclictest35-21ksoftirqd/309:40:183
143909960,4cyclictest15368-21/usr/sbin/munin09:20:203
143909960,1cyclictest0-21swapper/309:35:103
143909960,0cyclictest19983-21apt-get07:20:103
143829966,0cyclictest61650irq/122-eno112:25:102
143829966,0cyclictest61650irq/122-eno111:56:202
143829966,0cyclictest61650irq/122-eno110:35:162
143829966,0cyclictest61650irq/122-eno109:45:122
143829965,1cyclictest61650irq/122-eno112:15:152
143829965,1cyclictest61650irq/122-eno112:00:152
143829965,1cyclictest61650irq/122-eno108:15:142
143829965,1cyclictest28-21ksoftirqd/208:20:092
143829964,1cyclictest61650irq/122-eno110:40:102
143829964,1cyclictest28-21ksoftirqd/207:50:132
143829964,1cyclictest28-21ksoftirqd/207:35:132
143829964,1cyclictest1015-21ssh09:40:232
143829960,4cyclictest0-21swapper/207:25:112
143829960,2cyclictest0-21swapper/208:50:112
143829960,1cyclictest0-21swapper/210:10:082
143749965,1cyclictest0-21swapper/108:49:091
143749961,2cyclictest0-21swapper/112:30:251
143749961,2cyclictest0-21swapper/111:36:241
143749960,6cyclictest0-21swapper/111:56:421
143749960,6cyclictest0-21swapper/110:32:021
143749960,6cyclictest0-21swapper/109:28:301
143749960,6cyclictest0-21swapper/108:24:571
143749960,6cyclictest0-21swapper/107:45:161
143749960,6cyclictest0-21swapper/107:38:071
143749960,5cyclictest0-21swapper/110:40:101
143749960,5cyclictest0-21swapper/109:40:151
143749960,5cyclictest0-21swapper/109:30:051
143749960,5cyclictest0-21swapper/108:00:021
143749960,4cyclictest0-21swapper/111:29:131
143749960,3cyclictest0-21swapper/112:06:001
143749960,1cyclictest0-21swapper/112:26:411
143749960,1cyclictest0-21swapper/109:22:151
143749960,1cyclictest0-21swapper/107:15:161
143629965,1cyclictest2793-21cat07:50:140
143629965,1cyclictest18472-21ntpq10:45:170
143629965,1cyclictest0-21swapper/007:15:010
143629960,6cyclictest0-21swapper/008:57:420
143629960,6cyclictest0-21swapper/008:43:570
143629960,6cyclictest0-21swapper/008:25:140
143629960,6cyclictest0-21swapper/008:10:180
143629960,5cyclictest32038-21ssh12:26:020
143629960,3cyclictest240-21systemd-journal07:25:000
143629960,2cyclictest0-21swapper/008:30:110
143629960,1cyclictest7053-21diskmemload11:35:110
143629960,0cyclictest0-21swapper/007:10:110
10191260,0sleep10-21swapper/111:16:171
26641250,0sleep10-21swapper/112:20:131
143909955,0cyclictest35-21ksoftirqd/309:00:013
143909954,1cyclictest35-21ksoftirqd/308:45:133
143909954,1cyclictest30786-21ntpq07:40:173
143909954,1cyclictest21971-21ntpq08:30:163
143829955,0cyclictest61650irq/122-eno109:05:202
143829954,1cyclictest28-21ksoftirqd/208:45:132
143749955,0cyclictest0-21swapper/110:05:351
143749954,1cyclictest0-21swapper/109:39:251
143749952,2cyclictest0-21swapper/112:19:101
143749952,2cyclictest0-21swapper/108:20:001
143749952,1cyclictest36082chrt10:25:221
143749950,5cyclictest0-21swapper/111:06:391
143749950,5cyclictest0-21swapper/110:45:141
143749950,5cyclictest0-21swapper/110:02:001
143749950,5cyclictest0-21swapper/108:54:551
143749950,5cyclictest0-21swapper/108:37:471
143749950,5cyclictest0-21swapper/107:28:161
143749950,4cyclictest0-21swapper/111:25:001
143749950,4cyclictest0-21swapper/110:20:371
143749950,3cyclictest0-21swapper/111:50:151
143749950,3cyclictest0-21swapper/111:30:261
143749950,3cyclictest0-21swapper/111:10:181
143749950,3cyclictest0-21swapper/107:55:101
143749950,3cyclictest0-21swapper/107:55:091
143749950,2cyclictest0-21swapper/110:57:141
143749950,1cyclictest0-21swapper/111:01:521
143749950,1cyclictest0-21swapper/110:35:111
143749950,1cyclictest0-21swapper/109:45:211
143749950,0cyclictest0-21swapper/109:00:111
143629954,0cyclictest0-21swapper/008:00:110
143629953,1cyclictest27905-21/usr/sbin/munin08:45:130
143629953,1cyclictest25370-21expr07:30:100
143629950,5cyclictest31196-21grep07:40:190
143629950,4cyclictest31972-21/usr/sbin/munin07:45:150
143909940,1cyclictest3309-21python07:50:193
143749944,0cyclictest0-21swapper/112:36:061
143749943,1cyclictest0-21swapper/112:00:161
143749943,1cyclictest0-21swapper/110:10:081
143749941,2cyclictest0-21swapper/108:30:111
143749940,4cyclictest0-21swapper/108:27:261
143749940,4cyclictest0-21swapper/108:10:101
143749940,3cyclictest0-21swapper/109:56:061
143749940,3cyclictest0-21swapper/109:56:061
143749940,1cyclictest0-21swapper/109:16:051
143749940,1cyclictest0-21swapper/109:10:171
143749940,1cyclictest0-21swapper/107:50:111
143749940,0cyclictest0-21swapper/108:07:221
143749931,2cyclictest0-21swapper/107:10:121
143749931,1cyclictest0-21swapper/108:55:131
143749931,1cyclictest0-21swapper/108:40:111
143749931,1cyclictest0-21swapper/107:20:091
143749930,3cyclictest0-21swapper/109:05:201
143749930,1cyclictest0-21swapper/107:30:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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