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2026-07-17 - 20:55
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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 Fri Jul 17, 2026 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
333624850,3sleep10-21swapper/107:05:201
40092219152,22sleep20-21swapper/207:05:302
43442211148,22sleep00-21swapper/007:09:500
40472201163,25sleep30-21swapper/307:05:593
94332680,0sleep30-21swapper/307:15:213
140852640,0sleep00-21swapper/012:15:180
117162220,1sleep121-21ksoftirqd/108:30:161
4445991713,4cyclictest56-21kworker/1:109:38:421
4445991712,1cyclictest56-21kworker/1:110:12:151
4445991612,4cyclictest21-21ksoftirqd/110:23:271
4445991511,4cyclictest21-21ksoftirqd/112:15:261
4445991511,4cyclictest21-21ksoftirqd/108:09:061
179882150,0sleep10-21swapper/110:15:371
4445991410,4cyclictest21-21ksoftirqd/109:49:541
96182130,0sleep10-21swapper/112:10:161
444599139,4cyclictest21-21ksoftirqd/112:37:501
444599139,4cyclictest21-21ksoftirqd/109:05:061
444599139,0cyclictest111rcu_preempt11:41:491
444599139,0cyclictest0-21swapper/107:46:431
272072130,0sleep00-21swapper/011:10:150
444599120,12cyclictest111rcu_preempt10:01:061
444599120,12cyclictest0-21swapper/107:24:191
444599120,0cyclictest0-21swapper/111:30:381
4429991211,1cyclictest9-21ksoftirqd/011:35:010
4429991211,1cyclictest9-21ksoftirqd/009:55:000
445899110,5cyclictest15103-21apt-get10:55:133
4453991110,1cyclictest28-21ksoftirqd/208:30:002
444599110,11cyclictest56-21kworker/1:107:35:311
444599110,11cyclictest0-21swapper/107:13:101
444599110,0cyclictest0-21swapper/110:45:511
442999119,1cyclictest9-21ksoftirqd/011:20:000
442999119,1cyclictest9-21ksoftirqd/010:50:000
442999119,1cyclictest9-21ksoftirqd/008:40:000
442999113,4cyclictest5979-21latency_hist08:20:000
4453991010,0cyclictest28-21ksoftirqd/210:39:592
445399101,2cyclictest13179-21apt-get09:30:112
444599109,1cyclictest21-21ksoftirqd/108:20:161
444599109,1cyclictest111rcu_preempt12:30:131
444599108,1cyclictest21-21ksoftirqd/112:05:001
444599100,4cyclictest111rcu_preempt08:15:131
444599100,10cyclictest0-21swapper/110:34:391
444599100,10cyclictest0-21swapper/108:53:531
442999109,1cyclictest9-21ksoftirqd/012:35:000
442999109,1cyclictest9-21ksoftirqd/012:10:000
442999109,1cyclictest9-21ksoftirqd/011:25:000
442999108,1cyclictest9-21ksoftirqd/010:00:000
442999102,4cyclictest12917-21perf09:30:000
44589999,0cyclictest35-21ksoftirqd/311:57:543
44589997,1cyclictest35-21ksoftirqd/308:15:003
44589996,1cyclictest35-21ksoftirqd/308:00:003
44589995,3cyclictest7206-21nscd12:20:123
44589991,3cyclictest1846-21taskset10:37:203
44539990,0cyclictest0-21swapper/210:08:292
44459999,0cyclictest21-21ksoftirqd/111:15:101
44459998,1cyclictest21-21ksoftirqd/111:45:151
44459998,1cyclictest21-21ksoftirqd/111:05:141
44459998,1cyclictest21-21ksoftirqd/109:55:181
44459998,1cyclictest21-21ksoftirqd/109:25:091
44459998,1cyclictest21-21ksoftirqd/108:45:111
44459998,1cyclictest21-21ksoftirqd/107:35:001
44459998,1cyclictest111rcu_preempt07:55:151
44459998,0cyclictest21-21ksoftirqd/111:10:161
44459997,1cyclictest111rcu_preempt09:30:111
44459996,0cyclictest21-21ksoftirqd/111:26:521
44459992,4cyclictest21-21ksoftirqd/110:05:061
44459990,8cyclictest21-21ksoftirqd/107:50:151
44459990,7cyclictest56-21kworker/1:110:59:211
44459990,5cyclictest21-21ksoftirqd/109:15:161
44459990,5cyclictest0-21swapper/112:26:361
44299999,0cyclictest9-21ksoftirqd/010:15:440
44299998,1cyclictest9-21ksoftirqd/011:25:130
44299998,1cyclictest9-21ksoftirqd/009:50:000
44299997,1cyclictest9-21ksoftirqd/012:15:010
44299997,1cyclictest9-21ksoftirqd/009:35:140
44299991,4cyclictest694-21perf12:00:000
44299991,1cyclictest12287-21taskset07:23:510
44299990,5cyclictest9050-21perf09:24:590
44589986,1cyclictest11947-21ssh11:30:433
44589985,1cyclictest13650irq/124-ahci[0008:59:563
44589981,6cyclictest115132sleep310:09:353
44589980,4cyclictest30194-21runrttasks09:10:113
44589980,4cyclictest0-21swapper/311:25:053
44539986,1cyclictest61650irq/122-eno112:15:142
44539986,1cyclictest61650irq/122-eno112:05:212
44539986,1cyclictest61650irq/122-eno111:05:182
44539986,1cyclictest61650irq/122-eno110:30:172
44539983,4cyclictest6802-21munin-node11:46:292
44539981,6cyclictest9281-21/usr/sbin/munin09:25:202
44539980,5cyclictest0-21swapper/207:35:122
44459988,0cyclictest211ksoftirqd/109:40:121
44459988,0cyclictest21-21ksoftirqd/112:05:581
44459988,0cyclictest21-21ksoftirqd/111:50:101
44459988,0cyclictest21-21ksoftirqd/111:36:361
44459988,0cyclictest21-21ksoftirqd/111:21:141
44459988,0cyclictest21-21ksoftirqd/111:04:001
44459988,0cyclictest21-21ksoftirqd/110:50:161
44459988,0cyclictest21-21ksoftirqd/110:50:161
44459988,0cyclictest21-21ksoftirqd/110:40:321
44459988,0cyclictest21-21ksoftirqd/110:25:181
44459988,0cyclictest21-21ksoftirqd/109:11:241
44459988,0cyclictest21-21ksoftirqd/108:25:181
44459988,0cyclictest21-21ksoftirqd/107:44:541
44459988,0cyclictest21-21ksoftirqd/107:30:001
44459987,1cyclictest21-21ksoftirqd/110:35:041
44459987,1cyclictest0-21swapper/111:55:041
44459984,4cyclictest56-21kworker/1:109:51:501
44459980,8cyclictest21-21ksoftirqd/109:20:211
44459980,8cyclictest111rcu_preempt08:40:171
44459980,8cyclictest0-21swapper/112:23:011
44299988,0cyclictest9-21ksoftirqd/011:45:140
44299987,1cyclictest101rcuc/010:40:120
44299986,2cyclictest29715-21diskmemload09:32:240
44299986,1cyclictest9-21ksoftirqd/011:35:110
44299986,1cyclictest9-21ksoftirqd/010:40:000
44299986,1cyclictest9-21ksoftirqd/008:05:000
44299986,1cyclictest27526-21perf10:30:000
44299986,1cyclictest23574-21tune2fs11:05:150
44299984,2cyclictest240-21systemd-journal10:55:000
44299984,2cyclictest240-21systemd-journal10:55:000
44299984,2cyclictest240-21systemd-journal10:20:070
44299981,1cyclictest4032-21ssh12:03:370
44299980,7cyclictest6437-21ssh10:01:340
44299980,5cyclictest29715-21diskmemload10:05:190
44299980,4cyclictest20326-21cut08:50:010
44589976,1cyclictest27717-21cat11:10:173
44589976,1cyclictest26728-21ntpq11:50:163
44589975,1cyclictest35-21ksoftirqd/308:35:123
44589975,1cyclictest22899-21ssh09:40:363
44589972,4cyclictest3207-21apt-get10:40:113
44589971,2cyclictest0-21swapper/312:26:283
44589970,6cyclictest8738-21ssh12:10:083
44589970,6cyclictest0-21swapper/309:18:453
44589970,4cyclictest29715-21diskmemload10:25:173
44589970,3cyclictest6167-21apt-get08:20:103
44589970,2cyclictest0-21swapper/312:36:313
44589970,2cyclictest0-21swapper/309:25:033
44589970,1cyclictest240-21systemd-journal11:19:553
44539976,1cyclictest61650irq/122-eno112:34:352
44539976,1cyclictest61650irq/122-eno112:29:522
44539976,1cyclictest61650irq/122-eno111:42:352
44539976,1cyclictest61650irq/122-eno111:35:132
44539976,1cyclictest61650irq/122-eno111:26:302
44539976,1cyclictest61650irq/122-eno109:56:422
44539976,1cyclictest61650irq/122-eno109:19:482
44539976,1cyclictest61650irq/122-eno108:20:132
44539976,1cyclictest28-21ksoftirqd/211:10:162
44539976,0cyclictest61650irq/122-eno111:03:562
44539975,1cyclictest61650irq/122-eno111:50:122
44539975,1cyclictest61650irq/122-eno110:26:302
44539975,1cyclictest61650irq/122-eno107:20:002
44539975,0cyclictest61650irq/122-eno110:04:332
44539973,2cyclictest548-21systemd-logind07:55:212
44539973,1cyclictest240-21systemd-journal12:36:402
44539971,1cyclictest2191-21apt-get11:20:122
44539970,6cyclictest3519-21kworker/u8:009:52:012
44539970,3cyclictest0-21swapper/211:55:122
44539970,2cyclictest0-21swapper/209:20:112
44459977,0cyclictest21-21ksoftirqd/108:59:591
44459977,0cyclictest21-21ksoftirqd/108:35:021
44459977,0cyclictest21-21ksoftirqd/108:10:061
44459977,0cyclictest0-21swapper/108:00:171
44459977,0cyclictest0-21swapper/107:15:191
44299976,1cyclictest9-21ksoftirqd/009:05:160
44299976,1cyclictest9-21ksoftirqd/008:30:150
44299976,1cyclictest14727-1kworker/u9:210:14:490
44299975,1cyclictest9-21ksoftirqd/010:55:140
44299975,1cyclictest9-21ksoftirqd/008:25:110
44299975,1cyclictest9-21ksoftirqd/007:35:000
44299970,6cyclictest3470-21sshd08:14:130
44299970,6cyclictest30633-21expr09:10:130
44299970,6cyclictest28663-21cstates12:35:130
44299970,6cyclictest23142-21ssh09:41:150
44299970,6cyclictest19632-21sort11:00:140
44299970,6cyclictest18438-21ssh12:20:340
44299970,6cyclictest0-21swapper/012:25:140
44299970,6cyclictest0-21swapper/008:40:150
44299970,6cyclictest0-21swapper/007:25:120
44299970,3cyclictest0-21swapper/008:20:120
44299970,1cyclictest30409-21ssh10:32:270
44299970,1cyclictest29715-21diskmemload11:50:100
44589965,1cyclictest4304-21ssh11:21:113
44589965,1cyclictest3162-21ssh09:58:143
44589965,1cyclictest30913-21ssh09:51:133
44589965,1cyclictest2862-21ssh12:00:383
44589965,1cyclictest16511-21ssh09:34:173
44589965,1cyclictest13845-21ssh11:35:033
44589964,1cyclictest4176-21apt-get10:00:113
44589964,1cyclictest26914-21ssh09:45:573
44589964,1cyclictest26823-21ssh12:32:053
44589964,1cyclictest21727-21ssh11:02:473
44589964,1cyclictest12923-21ssh10:10:163
44589964,1cyclictest12615-21ssh12:15:083
44589963,1cyclictest548-21systemd-logind11:45:203
44589963,1cyclictest240-21systemd-journal08:47:333
44589962,3cyclictest13230-21latency_hist08:35:003
44589961,2cyclictest29146-21apt-get08:00:133
44589960,6cyclictest0-21swapper/311:42:523
44589960,4cyclictest0-21swapper/310:31:293
44589960,3cyclictest78512sleep312:08:263
44589960,2cyclictest0-21swapper/311:06:493
44589960,2cyclictest0-21swapper/309:35:133
44589960,1cyclictest0-21swapper/310:53:243
44589960,1cyclictest0-21swapper/310:53:233
44539966,0cyclictest61650irq/122-eno112:10:122
44539966,0cyclictest61650irq/122-eno112:00:082
44539966,0cyclictest61650irq/122-eno111:30:182
44539966,0cyclictest61650irq/122-eno111:15:112
44539966,0cyclictest61650irq/122-eno110:20:012
44539966,0cyclictest61650irq/122-eno110:10:162
44539966,0cyclictest61650irq/122-eno108:40:042
44539966,0cyclictest61650irq/122-eno108:38:222
44539966,0cyclictest61650irq/122-eno108:30:232
44539966,0cyclictest61650irq/122-eno108:06:452
44539966,0cyclictest61650irq/122-eno107:46:002
44539966,0cyclictest61650irq/122-eno107:25:112
44539966,0cyclictest0-21swapper/209:45:002
44539965,1cyclictest61650irq/122-eno110:50:132
44539965,1cyclictest61650irq/122-eno110:50:132
44539965,1cyclictest61650irq/122-eno110:45:462
44539965,1cyclictest61650irq/122-eno110:40:302
44539965,1cyclictest61650irq/122-eno109:35:132
44539965,1cyclictest61650irq/122-eno107:20:182
44539965,1cyclictest16490-21ssh12:20:022
44539965,1cyclictest16144-21ntpq07:30:182
44539965,1cyclictest15029-21ssh10:55:012
44539965,0cyclictest61650irq/122-eno109:10:012
44539964,1cyclictest61650irq/122-eno110:15:122
44539964,1cyclictest61650irq/122-eno108:00:162
44539964,1cyclictest5920-21perf08:20:002
44539960,5cyclictest0-21swapper/208:50:182
44539960,4cyclictest21835-21hddtemp_smartct09:40:162
44459965,1cyclictest21-21ksoftirqd/108:55:201
44299965,0cyclictest9-21ksoftirqd/007:55:000
44299964,1cyclictest9-21ksoftirqd/007:15:140
44299964,1cyclictest9-21ksoftirqd/007:10:120
44299964,1cyclictest19024-21ssh11:40:210
44299960,5cyclictest29715-21diskmemload09:15:140
44299960,5cyclictest22390-21cstates07:45:130
44299960,5cyclictest0-21swapper/008:52:400
44299960,0cyclictest0-21swapper/007:55:090
44589953,1cyclictest18528-21/usr/sbin/munin07:35:193
44589953,1cyclictest16574-21cat10:15:143
44589952,2cyclictest14982-21apt-get07:30:123
44589952,1cyclictest240-21systemd-journal08:55:013
44589952,1cyclictest240-21systemd-journal07:45:003
44589952,1cyclictest240-21systemd-journal07:15:003
44589951,2cyclictest16586-21sed08:40:163
44589951,2cyclictest13090-21cstates07:25:133
44589951,1cyclictest8710-21apt-get08:25:013
44589951,1cyclictest26147-21users07:50:233
44589950,4cyclictest0-21swapper/309:00:133
44589950,4cyclictest0-21swapper/307:45:123
44589950,2cyclictest240-21systemd-journal09:10:003
44589950,2cyclictest0-21swapper/310:45:103
44589950,1cyclictest5396-21/usr/sbin/munin09:20:173
44589950,1cyclictest31501-21apt-get08:05:153
44589950,1cyclictest0-21swapper/310:20:413
44539955,0cyclictest61650irq/122-eno107:50:132
44539955,0cyclictest61650irq/122-eno107:40:372
44539953,1cyclictest5260-21cut07:10:142
44539953,1cyclictest19395-21tr08:45:182
44539952,2cyclictest2001-21fschecks_count08:10:142
44539950,5cyclictest0-21swapper/209:06:432
44539950,3cyclictest0-21swapper/209:00:112
44539950,3cyclictest0-21swapper/208:55:122
44299954,0cyclictest9-21ksoftirqd/008:00:200
44299950,4cyclictest22869-21/usr/sbin/munin08:55:150
44299950,3cyclictest0-21swapper/007:35:120
44299950,2cyclictest240-21systemd-journal07:40:010
44299950,1cyclictest0-21swapper/009:00:110
44589943,1cyclictest4652-21if_eno108:15:173
44589942,1cyclictest104292sleep307:20:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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