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2026-08-12 - 08:20
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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 Wed Aug 12, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
273032215154,50sleep30-21swapper/319:09:163
271862206149,43sleep00-21swapper/019:07:440
271632200159,26sleep20-21swapper/219:07:252
273312199160,25sleep10-21swapper/119:09:381
44522590,0sleep10-21swapper/123:50:111
221222370,0sleep30-21swapper/300:15:013
169822220,0sleep10-21swapper/121:50:051
169822220,0sleep10-21swapper/121:50:041
79372180,0sleep10-21swapper/123:08:341
27459991612,4cyclictest21-21ksoftirqd/123:43:511
27459991612,4cyclictest21-21ksoftirqd/100:17:261
27459991511,0cyclictest111rcu_preempt21:40:421
274192150,0sleep30-21swapper/322:05:013
2747099130,10cyclictest548-21systemd-logind23:24:082
2745999130,13cyclictest56-21kworker/1:122:59:041
2745999130,13cyclictest0-21swapper/120:55:551
2745999120,12cyclictest0-21swapper/120:44:421
2745999120,12cyclictest0-21swapper/119:37:311
2745999120,0cyclictest0-21swapper/120:33:301
2745599123,4cyclictest8346-21cut20:45:000
27455991211,1cyclictest9-21ksoftirqd/022:40:140
27455991211,1cyclictest9-21ksoftirqd/021:20:200
27455991210,1cyclictest9-21ksoftirqd/022:25:100
2747099119,1cyclictest28-21ksoftirqd/221:05:002
27470991110,1cyclictest28-21ksoftirqd/222:00:192
27459991111,0cyclictest21-21ksoftirqd/121:25:081
2745999110,11cyclictest0-21swapper/122:36:391
2745999110,0cyclictest0-21swapper/123:32:391
2745999110,0cyclictest0-21swapper/122:47:521
2745999110,0cyclictest0-21swapper/121:07:061
2745599119,1cyclictest9-21ksoftirqd/020:20:010
27455991110,1cyclictest9-21ksoftirqd/021:45:200
27455991110,1cyclictest9-21ksoftirqd/021:40:000
27455991110,1cyclictest9-21ksoftirqd/000:00:160
46962100,0sleep10-21swapper/122:17:021
2747399100,4cyclictest0-21swapper/321:55:123
2747099109,1cyclictest28-21ksoftirqd/220:00:002
2747099108,1cyclictest28-21ksoftirqd/223:31:502
2747099108,1cyclictest28-21ksoftirqd/222:15:152
2747099100,9cyclictest0-21swapper/223:46:522
2747099100,6cyclictest21775-21/usr/sbin/munin21:10:212
2747099100,10cyclictest0-21swapper/200:01:432
2745999108,1cyclictest21-21ksoftirqd/122:10:121
2745999108,1cyclictest21-21ksoftirqd/121:05:001
2745999102,7cyclictest111rcu_preempt21:39:101
2745999101,8cyclictest111rcu_preempt00:37:161
2745999101,7cyclictest21-21ksoftirqd/120:50:191
2745999100,8cyclictest21-21ksoftirqd/100:00:221
2745999100,0cyclictest0-21swapper/123:55:011
2745999100,0cyclictest0-21swapper/123:21:261
2745999100,0cyclictest0-21swapper/122:25:311
2745999100,0cyclictest0-21swapper/122:03:071
2745999100,0cyclictest0-21swapper/119:59:561
2745599109,1cyclictest9-21ksoftirqd/021:10:210
2745599108,1cyclictest9-21ksoftirqd/021:00:010
2745599108,1cyclictest32444-21ls00:29:590
2745599103,4cyclictest5728-21sed22:19:590
2745599102,4cyclictest7667-21perf23:55:000
274739996,2cyclictest11301-21snmpd21:04:363
274739990,6cyclictest0-21swapper/323:48:323
274709998,1cyclictest28-21ksoftirqd/221:24:592
274709998,1cyclictest28-21ksoftirqd/220:00:172
274709998,0cyclictest28-21ksoftirqd/200:30:222
274599999,0cyclictest21-21ksoftirqd/121:59:581
274599998,1cyclictest21-21ksoftirqd/123:39:091
274599998,1cyclictest21-21ksoftirqd/123:15:481
274599998,1cyclictest21-21ksoftirqd/122:35:011
274599998,1cyclictest21-21ksoftirqd/121:45:451
274599998,1cyclictest21-21ksoftirqd/121:23:401
274599998,1cyclictest21-21ksoftirqd/100:26:261
274599998,1cyclictest21-21ksoftirqd/100:11:041
274599995,3cyclictest21-21ksoftirqd/119:10:111
274599995,3cyclictest21-21ksoftirqd/119:10:101
274599994,4cyclictest111rcu_preempt23:10:191
274599991,1cyclictest21-21ksoftirqd/100:30:171
274599991,1cyclictest111rcu_preempt19:45:111
274599991,1cyclictest111rcu_preempt00:24:011
274599990,8cyclictest21-21ksoftirqd/121:15:331
274599990,8cyclictest111rcu_preempt22:51:151
274599990,8cyclictest111rcu_preempt20:10:181
274599990,0cyclictest0-21swapper/120:22:191
274559999,0cyclictest9-21ksoftirqd/023:15:000
274559998,1cyclictest9-21ksoftirqd/022:55:200
274559998,1cyclictest9-21ksoftirqd/022:01:570
274559998,1cyclictest9-21ksoftirqd/020:00:160
274559997,1cyclictest9-21ksoftirqd/022:20:130
274559997,1cyclictest9-21ksoftirqd/021:00:000
274559997,1cyclictest9-21ksoftirqd/000:35:140
274559996,1cyclictest9-21ksoftirqd/019:20:000
274559993,5cyclictest648-21perf23:44:590
274559993,5cyclictest25493-21date00:20:010
274559991,4cyclictest8432-21perf23:10:000
274739986,1cyclictest14067-21hwlatdetect20:55:153
274739986,1cyclictest11301-21snmpd00:30:003
274739986,1cyclictest11301-21snmpd00:07:303
274739983,2cyclictest20099-21diskmemload23:17:103
274739982,3cyclictest30872-21cat23:40:193
274739980,7cyclictest29057-21kworker/u8:122:58:363
274739980,7cyclictest0-21swapper/322:26:263
274709988,0cyclictest28-21ksoftirqd/220:20:142
274709987,1cyclictest28-21ksoftirqd/223:05:182
274709987,1cyclictest28-21ksoftirqd/222:50:162
274709987,1cyclictest28-21ksoftirqd/221:05:152
274709987,1cyclictest28-21ksoftirqd/221:00:012
274709987,1cyclictest28-21ksoftirqd/220:20:012
274709987,1cyclictest28-21ksoftirqd/219:45:132
274709987,1cyclictest28-21ksoftirqd/219:35:002
274709987,1cyclictest28-21ksoftirqd/200:05:152
274709986,1cyclictest61650irq/122-eno121:40:142
274709986,1cyclictest28-21ksoftirqd/223:55:152
274709986,1cyclictest28-21ksoftirqd/223:35:012
274709986,1cyclictest28-21ksoftirqd/222:10:012
274709986,1cyclictest28-21ksoftirqd/220:35:002
274709986,1cyclictest11301-21snmpd22:24:572
274709982,3cyclictest585-21rs:main2
274709980,6cyclictest26785-21kworker/2:119:50:172
274599988,0cyclictest21-21ksoftirqd/122:05:061
274599988,0cyclictest21-21ksoftirqd/120:35:171
274599988,0cyclictest21-21ksoftirqd/120:09:361
274599988,0cyclictest21-21ksoftirqd/100:05:021
274599988,0cyclictest111rcu_preempt21:30:141
274599987,1cyclictest21-21ksoftirqd/123:45:031
274599987,1cyclictest21-21ksoftirqd/121:12:331
274599987,1cyclictest21-21ksoftirqd/120:00:161
274599987,1cyclictest21-21ksoftirqd/119:44:321
274599987,1cyclictest111rcu_preempt19:50:161
274599982,5cyclictest21-21ksoftirqd/123:25:141
274599982,4cyclictest111rcu_preempt23:00:121
274599981,2cyclictest111rcu_preempt19:15:011
274599980,8cyclictest0-21swapper/122:40:181
274599980,7cyclictest111rcu_preempt20:45:181
274599980,1cyclictest21-21ksoftirqd/122:20:131
274599980,1cyclictest21-21ksoftirqd/120:25:171
274559988,0cyclictest20099-21diskmemload21:18:100
274559987,1cyclictest9-21ksoftirqd/023:15:110
274559987,1cyclictest9-21ksoftirqd/023:00:120
274559987,1cyclictest9-21ksoftirqd/022:50:000
274559987,1cyclictest9-21ksoftirqd/022:35:000
274559987,1cyclictest9-21ksoftirqd/021:25:020
274559987,1cyclictest9-21ksoftirqd/020:39:590
274559986,1cyclictest9-21ksoftirqd/023:30:120
274559986,1cyclictest9-21ksoftirqd/019:50:110
274559986,1cyclictest9-21ksoftirqd/000:30:140
274559986,1cyclictest11301-21snmpd21:40:250
274559983,4cyclictest0-21swapper/000:10:140
274559982,4cyclictest20099-21diskmemload22:53:320
10973280,1sleep30-21swapper/323:59:333
274739977,0cyclictest35-21ksoftirqd/321:40:013
274739976,1cyclictest18853-21cat21:05:173
274739975,1cyclictest26459-21ssh21:17:303
274739975,1cyclictest11301-21snmpd22:24:503
274739975,1cyclictest11301-21snmpd22:16:493
274739975,1cyclictest11301-21snmpd22:12:503
274739975,1cyclictest11301-21snmpd21:41:363
274739975,1cyclictest11301-21snmpd20:05:143
274739975,1cyclictest11301-21snmpd19:57:383
274739975,1cyclictest11301-21snmpd19:31:243
274739975,1cyclictest11301-21snmpd19:25:493
274739975,1cyclictest11301-21snmpd19:13:093
274739975,1cyclictest11301-21snmpd19:13:083
274739973,1cyclictest6181-21apt-get20:40:093
274739972,3cyclictest27638-21apt-get21:20:143
274739971,5cyclictest561-21nscd22:30:223
274739971,3cyclictest16994-21df22:35:143
274739970,5cyclictest0-21swapper/319:45:123
274739970,3cyclictest31524-21/usr/sbin/munin20:25:213
274739970,2cyclictest11439-21/usr/sbin/munin00:00:223
274739970,1cyclictest6016-21perf21:35:003
274739970,1cyclictest0-21swapper/322:40:113
274709976,1cyclictest61650irq/122-eno122:13:012
274709976,1cyclictest61650irq/122-eno121:31:072
274709976,1cyclictest61650irq/122-eno121:15:112
274709976,1cyclictest61650irq/122-eno100:39:212
274709976,1cyclictest28-21ksoftirqd/223:50:122
274709976,1cyclictest28-21ksoftirqd/219:40:142
274709976,1cyclictest11301-21snmpd23:03:042
274709976,1cyclictest11301-21snmpd22:42:472
274709976,1cyclictest11301-21snmpd20:27:082
274709976,1cyclictest11301-21snmpd19:37:582
274709976,0cyclictest61650irq/122-eno122:45:112
274709975,1cyclictest61650irq/122-eno123:30:002
274709975,1cyclictest61650irq/122-eno122:55:202
274709975,1cyclictest28-21ksoftirqd/220:40:122
274709975,1cyclictest28-21ksoftirqd/219:29:592
274709973,3cyclictest0-21swapper/200:28:432
274709973,2cyclictest548-21systemd-logind22:29:072
274709972,3cyclictest9737-21missed_timers23:10:172
274709972,2cyclictest240-21systemd-journal22:33:072
274709970,7cyclictest0-21swapper/219:23:462
274709970,6cyclictest0-21swapper/221:25:172
274599970,7cyclictest201rcuc/120:17:451
274599970,7cyclictest111rcu_preempt19:27:501
274559976,1cyclictest9-21ksoftirqd/022:10:110
274559976,1cyclictest9-21ksoftirqd/020:55:000
274559976,1cyclictest9-21ksoftirqd/019:25:140
274559975,1cyclictest11301-21snmpd23:45:040
274559975,1cyclictest11301-21snmpd19:30:060
274559973,1cyclictest17008-21/usr/sbin/munin21:50:130
274559973,1cyclictest17008-21/usr/sbin/munin21:50:130
274559972,2cyclictest240-21systemd-journal20:15:000
274559972,1cyclictest20099-21diskmemload21:30:140
274559971,1cyclictest9-21ksoftirqd/019:55:140
274559970,7cyclictest0-21swapper/019:39:550
274559970,6cyclictest29802-21munin-node21:08:180
274559970,6cyclictest0-21swapper/000:20:130
274559970,1cyclictest7881-21ssh23:55:060
274559970,1cyclictest2862-21smartctl20:30:210
274559970,1cyclictest20099-21diskmemload00:07:380
274559970,1cyclictest0-21swapper/022:35:110
274739965,1cyclictest6339-21ssh23:50:533
274739965,1cyclictest5695-21ssh23:05:163
274739965,1cyclictest5656-21ssh00:35:363
274739965,1cyclictest20672-21ssh00:11:443
274739965,1cyclictest10653-21sh20:50:003
274739964,1cyclictest29152-21ssh22:51:223
274739964,1cyclictest11301-21snmpd21:45:033
274739964,1cyclictest11301-21snmpd19:15:083
274739963,1cyclictest20099-21diskmemload23:21:343
274739963,1cyclictest20099-21diskmemload21:25:583
274739962,2cyclictest20099-21diskmemload22:09:283
274739962,2cyclictest0-21swapper/323:25:483
274739962,0cyclictest20099-21diskmemload22:45:263
274739961,3cyclictest20099-21diskmemload23:00:153
274739961,2cyclictest20099-21diskmemload21:12:423
274739961,2cyclictest20099-21diskmemload00:26:043
274739960,4cyclictest24432-21apt-get20:10:133
274739960,4cyclictest0-21swapper/323:35:103
274739960,2cyclictest0-21swapper/323:10:573
274739960,1cyclictest240-21systemd-journal20:35:003
274739960,1cyclictest20099-21diskmemload00:20:223
274709966,0cyclictest61650irq/122-eno123:17:512
274709966,0cyclictest61650irq/122-eno122:38:082
274709966,0cyclictest61650irq/122-eno121:35:012
274709966,0cyclictest61650irq/122-eno100:10:122
274709966,0cyclictest28-21ksoftirqd/221:45:132
274709965,1cyclictest61650irq/122-eno121:50:102
274709965,1cyclictest61650irq/122-eno121:50:092
274709965,1cyclictest61650irq/122-eno119:15:112
274709965,1cyclictest23356-21ntpq00:15:192
274709964,1cyclictest28-21ksoftirqd/220:50:142
274709964,1cyclictest28-21ksoftirqd/220:45:142
274709962,3cyclictest27446-21cyclictest00:20:142
274709961,5cyclictest61650irq/122-eno120:35:242
274709960,6cyclictest0-21swapper/223:41:372
274709960,6cyclictest0-21swapper/220:06:402
274599966,0cyclictest0-21swapper/119:20:011
274599965,1cyclictest0-21swapper/119:30:141
274559965,1cyclictest9-21ksoftirqd/023:35:140
274559965,1cyclictest9-21ksoftirqd/020:05:210
274559965,1cyclictest29233-21telnet20:20:120
274559965,1cyclictest26363-1kworker/u9:122:05:220
274559965,0cyclictest9-21ksoftirqd/019:20:010
274559964,1cyclictest11301-21snmpd20:45:090
274559962,1cyclictest0-21swapper/020:25:200
274559960,5cyclictest15689-21/usr/sbin/munin23:20:200
274559960,0cyclictest20099-21diskmemload21:55:060
274559960,0cyclictest0-21swapper/023:25:130
274559960,0cyclictest0-21swapper/019:45:150
274559960,0cyclictest0-21swapper/019:40:170
274559960,0cyclictest0-21swapper/019:14:210
274559960,0cyclictest0-21swapper/019:14:210
19847265,0sleep335-21ksoftirqd/321:53:493
19847265,0sleep335-21ksoftirqd/321:53:483
274739953,1cyclictest11301-21snmpd20:20:023
274739952,2cyclictest4481-21fschecks_time20:35:173
274739951,3cyclictest10289-21apt-get19:40:123
274739951,2cyclictest20099-21diskmemload23:30:403
274739950,5cyclictest0-21swapper/320:15:163
274739950,0cyclictest0-21swapper/319:36:383
274709954,1cyclictest61650irq/122-eno120:10:152
274709954,1cyclictest28-21ksoftirqd/219:10:132
274709954,1cyclictest28-21ksoftirqd/219:10:122
274739944,0cyclictest0-21swapper/320:00:123
274739943,1cyclictest869-21hostname19:20:123
274739942,1cyclictest15659-21fschecks_time19:50:123
274739942,1cyclictest12060-21ntpq20:50:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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