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2026-04-24 - 16:41
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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
Characteristics of all highest latencies:
System rack1slot1.osadl.org (updated Fri Apr 24, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190452204166,24sleep20-21swapper/207:07:182
191682201162,26sleep10-21swapper/107:08:551
190062201157,31sleep30-21swapper/307:06:463
190132199161,24sleep00-21swapper/007:06:520
317782720,0sleep10-21swapper/108:40:161
289422710,0sleep20-21swapper/211:36:482
16702600,0sleep30-21swapper/312:26:073
300042190,0sleep10-21swapper/112:20:201
19382991918,1cyclictest35-21ksoftirqd/311:55:163
1938299188,7cyclictest35-21ksoftirqd/311:20:153
19382991818,0cyclictest35-21ksoftirqd/312:35:123
19382991818,0cyclictest35-21ksoftirqd/308:15:173
19382991716,1cyclictest35-21ksoftirqd/309:46:203
19382991616,0cyclictest35-21ksoftirqd/311:36:503
19382991616,0cyclictest35-21ksoftirqd/311:10:123
19382991616,0cyclictest35-21ksoftirqd/309:05:203
19382991616,0cyclictest35-21ksoftirqd/308:40:173
19382991615,1cyclictest35-21ksoftirqd/311:25:203
19371991615,1cyclictest28-21ksoftirqd/211:28:052
19371991612,3cyclictest116091/usr/sbin/munin08:00:172
19382991515,0cyclictest35-21ksoftirqd/310:55:183
19382991514,1cyclictest35-21ksoftirqd/311:17:353
1938299146,0cyclictest35-21ksoftirqd/309:40:113
19382991414,0cyclictest35-21ksoftirqd/310:14:103
19382991410,3cyclictest35-21ksoftirqd/310:09:223
1936099140,13cyclictest0-21swapper/108:00:111
297802130,0sleep20-21swapper/210:14:062
19382991313,0cyclictest35-21ksoftirqd/312:10:303
19382991313,0cyclictest35-21ksoftirqd/311:44:163
19382991313,0cyclictest35-21ksoftirqd/310:43:243
19382991313,0cyclictest35-21ksoftirqd/310:22:573
19382991313,0cyclictest35-21ksoftirqd/309:55:123
19382991313,0cyclictest35-21ksoftirqd/308:53:423
19382991313,0cyclictest35-21ksoftirqd/308:30:163
19382991311,1cyclictest35-21ksoftirqd/311:50:013
19382991311,1cyclictest35-21ksoftirqd/309:15:003
19382991311,1cyclictest35-21ksoftirqd/307:55:003
19371991311,1cyclictest28-21ksoftirqd/208:55:122
1938299129,1cyclictest35-21ksoftirqd/312:34:593
1938299126,4cyclictest35-21ksoftirqd/310:39:343
19382991212,0cyclictest35-21ksoftirqd/309:38:023
19382991212,0cyclictest35-21ksoftirqd/309:25:513
19382991212,0cyclictest35-21ksoftirqd/309:16:593
19382991211,1cyclictest35-21ksoftirqd/312:10:013
19382991211,1cyclictest35-21ksoftirqd/311:34:593
19382991211,1cyclictest35-21ksoftirqd/309:33:213
19382991211,1cyclictest35-21ksoftirqd/308:49:593
19382991210,1cyclictest35-21ksoftirqd/312:15:123
19382991210,1cyclictest35-21ksoftirqd/311:00:123
19382991210,1cyclictest35-21ksoftirqd/310:25:093
19382991210,1cyclictest35-21ksoftirqd/310:15:133
19382991210,1cyclictest35-21ksoftirqd/308:10:003
19382991210,1cyclictest35-21ksoftirqd/307:49:593
19382991210,1cyclictest35-21ksoftirqd/307:25:123
1934999123,4cyclictest28003-21perf12:20:010
1934999123,4cyclictest12231-21perf09:10:000
19349991211,1cyclictest9-21ksoftirqd/011:40:000
1938299119,1cyclictest35-21ksoftirqd/311:05:153
1938299119,1cyclictest35-21ksoftirqd/310:34:593
1938299119,1cyclictest35-21ksoftirqd/310:00:113
1938299119,1cyclictest35-21ksoftirqd/309:50:143
1938299119,1cyclictest35-21ksoftirqd/308:20:133
1938299119,1cyclictest35-21ksoftirqd/308:10:023
1938299119,1cyclictest35-21ksoftirqd/308:00:133
1938299119,1cyclictest35-21ksoftirqd/307:40:183
1938299119,1cyclictest35-21ksoftirqd/307:35:143
19382991111,0cyclictest35-21ksoftirqd/309:20:113
19382991111,0cyclictest35-21ksoftirqd/307:18:303
19382991110,1cyclictest35-21ksoftirqd/312:20:133
19382991110,1cyclictest35-21ksoftirqd/312:00:163
19382991110,1cyclictest35-21ksoftirqd/310:50:163
19382991110,1cyclictest35-21ksoftirqd/310:45:183
1937199119,1cyclictest28-21ksoftirqd/207:15:142
19371991110,1cyclictest28-21ksoftirqd/212:35:112
19371991110,1cyclictest28-21ksoftirqd/212:03:232
19371991110,1cyclictest28-21ksoftirqd/210:56:222
19371991110,1cyclictest28-21ksoftirqd/210:20:122
19371991110,1cyclictest28-21ksoftirqd/207:35:102
1934999112,4cyclictest10698-21perf12:39:590
19349991110,1cyclictest9-21ksoftirqd/010:15:010
1938299109,1cyclictest35-21ksoftirqd/308:39:593
1938299109,1cyclictest35-21ksoftirqd/307:20:143
1938299108,1cyclictest35-21ksoftirqd/309:00:103
1938299108,1cyclictest35-21ksoftirqd/308:55:123
1938299108,1cyclictest35-21ksoftirqd/308:25:153
1938299108,1cyclictest35-21ksoftirqd/307:55:013
1938299108,1cyclictest35-21ksoftirqd/307:30:203
19382991010,0cyclictest35-21ksoftirqd/311:50:113
19382991010,0cyclictest35-21ksoftirqd/307:10:103
1937199109,1cyclictest28-21ksoftirqd/212:15:102
1937199109,1cyclictest28-21ksoftirqd/212:10:122
1937199109,1cyclictest28-21ksoftirqd/211:30:182
1937199109,1cyclictest28-21ksoftirqd/209:46:482
1937199109,1cyclictest28-21ksoftirqd/209:35:252
1937199109,1cyclictest28-21ksoftirqd/209:25:172
1937199108,1cyclictest28-21ksoftirqd/209:20:162
1937199108,1cyclictest28-21ksoftirqd/208:15:172
1937199108,1cyclictest28-21ksoftirqd/207:50:002
1937199108,1cyclictest225791ssh10:05:002
1937199108,1cyclictest18647-21sh09:59:412
19371991010,0cyclictest28-21ksoftirqd/211:06:302
19371991010,0cyclictest28-21ksoftirqd/210:44:142
1937199100,10cyclictest0-21swapper/211:22:462
1934999109,1cyclictest9-21ksoftirqd/008:10:000
1934999108,1cyclictest9-21ksoftirqd/007:15:010
1934999100,7cyclictest0-21swapper/010:58:430
193719999,0cyclictest28-21ksoftirqd/210:35:142
193719999,0cyclictest28-21ksoftirqd/210:15:162
193719999,0cyclictest28-21ksoftirqd/209:30:162
193719998,1cyclictest28-21ksoftirqd/212:30:112
193719998,1cyclictest28-21ksoftirqd/212:29:592
193719998,1cyclictest28-21ksoftirqd/210:30:152
193719998,1cyclictest28-21ksoftirqd/209:43:562
193719998,1cyclictest28-21ksoftirqd/208:20:122
193719997,1cyclictest28-21ksoftirqd/211:55:012
193719997,1cyclictest28-21ksoftirqd/208:35:002
193719997,1cyclictest28-21ksoftirqd/207:44:592
193499999,0cyclictest9-21ksoftirqd/011:00:120
193499997,1cyclictest9-21ksoftirqd/012:25:120
193499990,6cyclictest8797-21apt-get07:55:000
193719988,0cyclictest28-21ksoftirqd/211:18:252
193719987,1cyclictest28-21ksoftirqd/211:45:182
193719987,1cyclictest28-21ksoftirqd/211:40:122
193719987,1cyclictest28-21ksoftirqd/210:05:172
193719987,1cyclictest28-21ksoftirqd/209:17:252
193719987,1cyclictest28-21ksoftirqd/208:45:212
193719987,1cyclictest28-21ksoftirqd/208:25:182
193719987,1cyclictest28-21ksoftirqd/208:05:122
193719987,1cyclictest28-21ksoftirqd/207:50:142
193719987,1cyclictest28-21ksoftirqd/207:15:012
193719986,1cyclictest28-21ksoftirqd/211:00:142
193719986,1cyclictest28-21ksoftirqd/210:25:152
193719986,1cyclictest28-21ksoftirqd/209:10:132
193719983,2cyclictest17998-21snmpd08:50:482
193719981,6cyclictest28-21ksoftirqd/211:57:362
193499987,1cyclictest931-21cstates08:45:140
193499987,1cyclictest9-21ksoftirqd/010:15:120
193499987,1cyclictest9-21ksoftirqd/008:25:010
193499986,1cyclictest9-21ksoftirqd/010:30:000
193499986,1cyclictest9-21ksoftirqd/008:30:010
193499986,1cyclictest17998-21snmpd11:19:320
193499986,1cyclictest17998-21snmpd11:08:050
193499986,1cyclictest17998-21snmpd08:40:190
193499984,2cyclictest240-21systemd-journal11:25:010
193499982,3cyclictest12883-21perf12:00:010
193499981,5cyclictest17998-21snmpd11:53:000
193499981,3cyclictest0-21swapper/011:45:110
193499980,7cyclictest21694-21wc12:10:160
193499980,6cyclictest21697-21kworker/0:109:30:000
193499980,5cyclictest17998-21snmpd11:40:050
193719977,0cyclictest28-21ksoftirqd/212:20:032
193719976,1cyclictest61650irq/122-eno111:10:402
193719976,1cyclictest61650irq/122-eno108:00:002
193719976,1cyclictest5536-21kworker/2:007:30:182
193719976,1cyclictest28-21ksoftirqd/210:50:152
193719976,1cyclictest28-21ksoftirqd/208:40:182
193719975,1cyclictest61650irq/122-eno112:05:122
193719975,1cyclictest28-21ksoftirqd/209:50:132
193719975,1cyclictest28-21ksoftirqd/209:05:142
193719975,1cyclictest28-21ksoftirqd/208:10:122
193719975,1cyclictest17998-21snmpd10:46:402
193609971,1cyclictest0-21swapper/110:39:281
193609971,1cyclictest0-21swapper/108:35:421
193609970,2cyclictest0-21swapper/109:57:251
193609970,1cyclictest0-21swapper/109:20:101
193499976,1cyclictest9984-21ssh11:11:390
193499976,1cyclictest9-21ksoftirqd/008:10:010
193499976,1cyclictest19990-21cat11:25:160
193499975,1cyclictest9-21ksoftirqd/007:20:000
193499975,1cyclictest7812-21aten_r1power_po09:00:120
193499975,1cyclictest28407-21ssh09:30:050
193499972,4cyclictest21696-21munin-node10:00:070
193499972,2cyclictest240-21systemd-journal07:50:000
193499970,6cyclictest5726-21ssh09:40:230
193499970,6cyclictest5427-21ssh12:31:020
193499970,6cyclictest512-21df09:35:140
193499970,6cyclictest27584-21ssh10:53:030
193499970,6cyclictest23411-21sh10:46:590
193499970,6cyclictest18835-21latency_hist10:00:010
193499970,6cyclictest14898-21cut10:35:210
193499970,6cyclictest13493-21ssh09:50:520
193499970,6cyclictest0-21swapper/012:20:070
193499970,3cyclictest0-21swapper/009:22:030
193499970,1cyclictest25710-21ssh10:08:140
193499970,1cyclictest18750-21ssh12:05:320
193499970,1cyclictest15061-21ssh09:12:290
193499970,1cyclictest12893-21ssh10:34:510
193499970,1cyclictest0-21swapper/011:30:120
6316260,0sleep10-21swapper/108:55:141
193719966,0cyclictest61650irq/122-eno107:20:202
193719965,1cyclictest28-21ksoftirqd/209:00:172
193719964,1cyclictest28-21ksoftirqd/208:35:112
193719963,2cyclictest28-21ksoftirqd/207:25:192
193609964,1cyclictest0-21swapper/109:05:121
193609962,3cyclictest192002sleep110:40:481
193609960,6cyclictest0-21swapper/112:35:081
193609960,6cyclictest0-21swapper/112:32:431
193609960,6cyclictest0-21swapper/112:12:301
193609960,6cyclictest0-21swapper/112:06:431
193609960,6cyclictest0-21swapper/111:26:381
193609960,6cyclictest0-21swapper/111:03:581
193609960,6cyclictest0-21swapper/110:19:391
193609960,6cyclictest0-21swapper/107:59:481
193609960,5cyclictest0-21swapper/110:50:201
193609960,5cyclictest0-21swapper/110:22:101
193609960,5cyclictest0-21swapper/107:20:191
193609960,3cyclictest0-21swapper/110:46:331
193609960,3cyclictest0-21swapper/110:30:121
193609960,1cyclictest0-21swapper/108:21:441
193609960,0cyclictest0-21swapper/109:13:411
193499965,1cyclictest1939-21ssh10:20:060
193499965,1cyclictest17998-21snmpd07:28:580
193499964,1cyclictest28096-21perf08:35:000
193499964,1cyclictest12504-21cat08:00:150
193499964,1cyclictest1-21systemd08:50:090
193499963,1cyclictest240-21systemd-journal07:25:000
193499961,5cyclictest0-21swapper/007:30:560
193499961,3cyclictest32023-21apt-get07:35:110
193499960,6cyclictest0-21swapper/009:45:010
193499960,6cyclictest0-21swapper/007:40:050
193499960,5cyclictest13237-21telnet12:00:110
193499960,4cyclictest21697-21kworker/0:108:35:110
193499960,0cyclictest12186-21diskmemload09:15:090
193499960,0cyclictest0-21swapper/010:40:020
193499960,0cyclictest0-21swapper/008:56:250
193609955,0cyclictest0-21swapper/111:51:261
193609955,0cyclictest0-21swapper/109:47:511
193609953,1cyclictest162022sleep112:03:541
193609952,1cyclictest0-21swapper/109:15:191
193609951,2cyclictest0-21swapper/111:05:001
193609951,2cyclictest0-21swapper/108:25:591
193609951,1cyclictest0-21swapper/110:10:161
193609950,5cyclictest0-21swapper/111:35:561
193609950,5cyclictest0-21swapper/111:17:401
193609950,5cyclictest0-21swapper/110:05:071
193609950,5cyclictest0-21swapper/108:32:511
193609950,5cyclictest0-21swapper/107:10:091
193609950,4cyclictest11979-21chrt11:57:451
193609950,4cyclictest0-21swapper/112:25:111
193609950,3cyclictest0-21swapper/111:48:391
193609950,3cyclictest0-21swapper/111:22:401
193609950,2cyclictest0-21swapper/111:12:471
193609950,2cyclictest0-21swapper/109:44:391
193609950,2cyclictest0-21swapper/109:25:481
193609950,1cyclictest0-21swapper/110:55:111
193609950,1cyclictest0-21swapper/110:26:421
193609950,0cyclictest0-21swapper/109:53:231
193499950,0cyclictest0-21swapper/008:15:110
193499950,0cyclictest0-21swapper/007:50:120
193609944,0cyclictest0-21swapper/109:30:191
193609944,0cyclictest0-21swapper/108:15:121
193609943,1cyclictest24404-21chrt07:16:191
193609943,1cyclictest0-21swapper/109:02:331
193609942,1cyclictest21454-21chrt10:01:551
193609941,2cyclictest0-21swapper/112:15:101
193609941,1cyclictest0-21swapper/107:45:101
193609940,4cyclictest0-21swapper/107:42:511
193609940,4cyclictest0-21swapper/107:27:021
193609940,3cyclictest0-21swapper/108:45:171
193609940,2cyclictest0-21swapper/107:50:161
193609940,1cyclictest0-21swapper/111:40:151
193609940,1cyclictest0-21swapper/111:30:121
193609940,0cyclictest0-21swapper/109:35:191
193609940,0cyclictest0-21swapper/108:12:101
193609940,0cyclictest0-21swapper/107:37:041
193609940,0cyclictest0-21swapper/107:32:031
193609930,3cyclictest0-21swapper/108:50:061
14076230,1sleep10-21swapper/108:05:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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