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2026-09-05 - 17:29
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Sat Sep 05, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
277122224157,53sleep30-21swapper/307:06:233
277162214150,22sleep20-21swapper/207:06:252
279672206150,22sleep10-21swapper/107:09:431
276772197157,26sleep00-21swapper/007:05:540
324432670,0sleep30-21swapper/310:55:193
28099991511,4cyclictest0-21swapper/111:08:031
28099991410,0cyclictest21-21ksoftirqd/109:38:271
2809999128,4cyclictest56-21kworker/1:112:04:001
2809999128,4cyclictest21-21ksoftirqd/112:26:221
2809999128,4cyclictest21-21ksoftirqd/108:53:391
2809999128,4cyclictest21-21ksoftirqd/108:08:551
2809999120,0cyclictest0-21swapper/111:41:361
2809999120,0cyclictest0-21swapper/111:41:351
28084991211,1cyclictest9-21ksoftirqd/009:10:010
28084991210,1cyclictest9-21ksoftirqd/012:40:000
2811799119,1cyclictest35-21ksoftirqd/310:40:143
2811799119,1cyclictest35-21ksoftirqd/310:40:013
28117991110,1cyclictest35-21ksoftirqd/311:34:593
2811099110,10cyclictest61650irq/122-eno110:16:262
2809999110,11cyclictest203-21jbd2/sda2-808:20:061
2809999110,11cyclictest0-21swapper/111:52:471
2809999110,11cyclictest0-21swapper/111:30:231
2809999110,11cyclictest0-21swapper/110:00:501
2809999110,10cyclictest0-21swapper/110:30:151
2809999110,0cyclictest0-21swapper/109:16:021
2808499119,1cyclictest9-21ksoftirqd/011:10:000
28084991110,1cyclictest9-21ksoftirqd/012:35:000
28084991110,1cyclictest9-21ksoftirqd/010:25:120
2811799109,1cyclictest35-21ksoftirqd/310:25:013
2811799109,1cyclictest35-21ksoftirqd/309:29:593
2811799109,1cyclictest35-21ksoftirqd/309:00:013
2811799108,1cyclictest35-21ksoftirqd/309:45:003
2811099100,9cyclictest0-21swapper/211:16:522
2811099100,6cyclictest19675-21apt-get11:25:112
2811099100,1cyclictest0-21swapper/208:55:152
2809999108,1cyclictest111rcu_preempt07:55:161
2809999100,10cyclictest0-21swapper/107:24:071
2808499109,1cyclictest9-21ksoftirqd/011:54:590
2808499109,1cyclictest9-21ksoftirqd/011:00:000
2808499108,1cyclictest9-21ksoftirqd/012:10:000
2808499108,1cyclictest9-21ksoftirqd/009:55:010
2808499108,1cyclictest9-21ksoftirqd/008:59:590
281179990,8cyclictest4850-21apt-get08:35:123
281109998,1cyclictest0-21swapper/210:41:492
281109996,2cyclictest11301-21snmpd09:35:462
281109992,6cyclictest14208-21kworker/u8:210:13:282
281109990,6cyclictest24181-21apt-get10:45:122
281109990,5cyclictest0-21swapper/211:50:122
281109990,5cyclictest0-21swapper/209:56:492
281109990,5cyclictest0-21swapper/209:10:052
281109990,5cyclictest0-21swapper/209:10:042
280999998,1cyclictest21-21ksoftirqd/111:35:231
280999998,1cyclictest21-21ksoftirqd/111:25:191
280999998,1cyclictest21-21ksoftirqd/109:55:221
280999998,1cyclictest21-21ksoftirqd/109:25:121
280999998,1cyclictest21-21ksoftirqd/108:15:011
280999997,1cyclictest111rcu_preempt09:30:141
280999990,9cyclictest0-21swapper/110:45:361
280999990,9cyclictest0-21swapper/107:37:401
280999990,9cyclictest0-21swapper/107:12:541
280999990,8cyclictest21-21ksoftirqd/110:15:201
280999990,8cyclictest21-21ksoftirqd/109:47:381
280999990,8cyclictest111rcu_preempt10:40:201
280999990,8cyclictest0-21swapper/109:50:171
280999990,8cyclictest0-21swapper/108:35:171
280999990,5cyclictest0-21swapper/108:42:281
280999990,5cyclictest0-21swapper/107:46:291
280849998,1cyclictest9-21ksoftirqd/010:10:000
280849998,1cyclictest9-21ksoftirqd/009:50:000
280849997,1cyclictest9-21ksoftirqd/009:55:170
280849997,1cyclictest9-21ksoftirqd/008:40:000
280849997,1cyclictest9-21ksoftirqd/008:00:000
280849997,1cyclictest9-21ksoftirqd/007:30:150
280849992,6cyclictest3402-21latency_hist07:25:010
281179987,1cyclictest35-21ksoftirqd/312:20:003
281179987,1cyclictest35-21ksoftirqd/311:45:013
281179987,1cyclictest35-21ksoftirqd/309:15:013
281179987,1cyclictest35-21ksoftirqd/309:15:003
281179987,1cyclictest35-21ksoftirqd/307:44:593
281179986,1cyclictest5154-21ntpq09:30:203
281179986,1cyclictest14698-21ntpq10:30:203
281179986,1cyclictest11301-21snmpd09:20:423
281179980,2cyclictest0-21swapper/310:25:103
281109986,1cyclictest61650irq/122-eno111:43:412
281109986,1cyclictest61650irq/122-eno111:43:412
281109986,1cyclictest61650irq/122-eno111:35:132
281109986,1cyclictest61650irq/122-eno111:31:342
281109986,1cyclictest61650irq/122-eno111:00:162
281109986,1cyclictest61650irq/122-eno107:35:152
281109986,1cyclictest11301-21snmpd08:47:302
281109984,2cyclictest240-21systemd-journal10:55:002
281109980,3cyclictest0-21swapper/208:15:102
281109980,3cyclictest0-21swapper/208:15:092
280999988,0cyclictest211ksoftirqd/109:00:201
280999988,0cyclictest211ksoftirqd/108:30:161
280999988,0cyclictest21-21ksoftirqd/112:36:141
280999988,0cyclictest21-21ksoftirqd/112:16:151
280999988,0cyclictest21-21ksoftirqd/111:49:231
280999988,0cyclictest21-21ksoftirqd/111:21:431
280999988,0cyclictest21-21ksoftirqd/111:10:131
280999988,0cyclictest21-21ksoftirqd/111:00:081
280999988,0cyclictest21-21ksoftirqd/110:39:011
280999988,0cyclictest21-21ksoftirqd/110:25:111
280999988,0cyclictest21-21ksoftirqd/110:24:461
280999988,0cyclictest21-21ksoftirqd/110:08:021
280999988,0cyclictest21-21ksoftirqd/109:40:481
280999988,0cyclictest21-21ksoftirqd/107:43:141
280999987,1cyclictest21-21ksoftirqd/111:15:121
280999987,1cyclictest111rcu_preempt10:50:221
280999987,0cyclictest111rcu_preempt12:24:341
280999980,8cyclictest5688-21taskset07:26:431
280999980,8cyclictest21-21ksoftirqd/112:05:161
280999980,8cyclictest0-21swapper/109:22:421
280999980,7cyclictest0-21swapper/108:55:141
280849987,1cyclictest9-21ksoftirqd/011:30:130
280849987,1cyclictest9-21ksoftirqd/008:40:130
280849987,1cyclictest10412-21ssh11:56:100
280849986,1cyclictest11301-21snmpd11:17:460
280849986,1cyclictest11301-21snmpd10:52:440
280849986,1cyclictest11301-21snmpd10:24:320
280849980,7cyclictest9678-21ssh09:36:330
280849980,7cyclictest15422-21ssh10:30:470
280849980,5cyclictest0-21swapper/009:23:390
18504280,0sleep30-21swapper/311:22:083
281179977,0cyclictest35-21ksoftirqd/310:00:493
281179977,0cyclictest13339-21sensors08:50:203
281179976,1cyclictest418-21cat10:10:193
281179976,1cyclictest35-21ksoftirqd/312:30:143
281179975,1cyclictest11301-21snmpd11:07:153
281179975,1cyclictest11301-21snmpd10:48:203
281179975,1cyclictest11301-21snmpd09:52:303
281179975,1cyclictest11301-21snmpd08:25:563
281179975,1cyclictest11301-21snmpd08:00:173
281179975,1cyclictest11301-21snmpd07:50:373
281179975,1cyclictest11301-21snmpd07:16:303
281179974,0cyclictest21133-21diskmemload12:08:043
281179973,2cyclictest240-21systemd-journal11:54:593
281179972,1cyclictest18390-21apt-get07:55:123
281179971,3cyclictest0-21swapper/309:35:103
281179970,3cyclictest0-21swapper/312:35:123
281179970,3cyclictest0-21swapper/310:50:143
281179970,2cyclictest0-21swapper/309:18:063
281109976,1cyclictest61650irq/122-eno112:35:562
281109976,1cyclictest61650irq/122-eno112:10:142
281109976,1cyclictest61650irq/122-eno111:05:182
281109976,1cyclictest61650irq/122-eno109:51:042
281109976,1cyclictest61650irq/122-eno109:16:462
281109976,1cyclictest61650irq/122-eno108:05:142
281109975,1cyclictest7345-21ntpq07:30:182
281109975,1cyclictest61650irq/122-eno111:45:152
281109975,1cyclictest61650irq/122-eno110:35:012
281109975,1cyclictest28-21ksoftirqd/209:41:022
281109975,1cyclictest11301-21snmpd12:20:542
281109975,1cyclictest11301-21snmpd10:02:182
281109974,2cyclictest12624-21/usr/sbin/munin12:00:152
281109973,2cyclictest548-21systemd-logind07:15:012
281109972,4cyclictest2495-21/usr/sbin/munin08:30:212
281109972,3cyclictest240-21systemd-journal11:24:592
281109971,6cyclictest0-21swapper/209:08:572
281109971,5cyclictest0-21swapper/210:35:122
281109970,6cyclictest30433-21munin-node09:31:122
281109970,6cyclictest0-21swapper/210:29:572
281109970,6cyclictest0-21swapper/207:42:132
281109970,3cyclictest0-21swapper/207:25:142
280999977,0cyclictest211ksoftirqd/107:15:151
280999977,0cyclictest21-21ksoftirqd/109:12:291
280999977,0cyclictest21-21ksoftirqd/109:12:281
280999977,0cyclictest21-21ksoftirqd/108:49:271
280999977,0cyclictest21-21ksoftirqd/108:05:001
280999977,0cyclictest21-21ksoftirqd/107:50:011
280999977,0cyclictest0-21swapper/112:10:371
280999976,1cyclictest21-21ksoftirqd/111:56:031
280999976,1cyclictest111rcu_preempt07:30:151
280999976,0cyclictest21-21ksoftirqd/109:05:181
280999970,7cyclictest0-21swapper/112:30:081
280999970,2cyclictest111rcu_preempt08:15:101
280999970,2cyclictest111rcu_preempt08:15:091
280999970,0cyclictest0-21swapper/110:10:181
280849977,0cyclictest9-21ksoftirqd/008:55:000
280849976,1cyclictest9-21ksoftirqd/007:50:000
280849976,1cyclictest0-21swapper/011:20:130
280849975,1cyclictest9-21ksoftirqd/011:00:120
280849975,1cyclictest9-21ksoftirqd/008:00:150
280849975,1cyclictest9-21ksoftirqd/007:15:010
280849975,1cyclictest30452-21tr11:40:140
280849975,1cyclictest30452-21tr11:40:130
280849975,1cyclictest22863-21ssh10:42:170
280849975,1cyclictest11301-21snmpd12:17:320
280849975,1cyclictest11301-21snmpd07:14:090
280849975,1cyclictest0-21swapper/011:10:130
280849972,3cyclictest21133-21diskmemload09:30:160
280849971,5cyclictest17514-21ssh10:35:140
280849970,6cyclictest3476-21cstates10:15:130
280849970,6cyclictest30317-21aten_r1power_po08:20:140
280849970,6cyclictest29967-21munin-run08:20:010
280849970,6cyclictest29967-21munin-run08:20:000
280849970,6cyclictest26632-21ntp_states08:10:170
280849970,6cyclictest25138-21apt-get09:15:120
280849970,6cyclictest21133-21diskmemload11:35:080
280849970,6cyclictest21133-21diskmemload10:11:410
280849970,6cyclictest21133-21diskmemload09:40:400
280849970,6cyclictest21133-21diskmemload09:26:460
280849970,6cyclictest0-21swapper/007:40:130
280849970,1cyclictest9077-21cstates07:35:130
280849970,1cyclictest32135-21ssh12:28:410
280849970,1cyclictest21133-21diskmemload12:20:020
280849970,1cyclictest21133-21diskmemload11:46:260
281179965,1cyclictest35-21ksoftirqd/310:15:133
281179965,1cyclictest14028-21ssh12:01:323
281179964,1cyclictest8114-21cat08:40:173
281179964,1cyclictest4561-21ssh11:02:113
281179964,1cyclictest11301-21snmpd11:19:453
281179964,1cyclictest11301-21snmpd08:46:533
281179964,1cyclictest11301-21snmpd08:21:043
281179964,1cyclictest11301-21snmpd07:39:493
281179964,0cyclictest21133-21diskmemload12:17:123
281179962,3cyclictest15611-21awk07:50:003
281179962,2cyclictest240-21systemd-journal10:09:593
281179962,0cyclictest21133-21diskmemload11:13:253
281179962,0cyclictest21133-21diskmemload09:58:363
281179961,4cyclictest769-21lldpd08:06:493
281179961,3cyclictest31443-21sh12:26:243
281179961,3cyclictest17161-21/usr/sbin/munin09:00:143
281179961,2cyclictest21133-21diskmemload11:25:033
281179961,0cyclictest30152-21/usr/sbin/munin11:40:163
281179961,0cyclictest30152-21/usr/sbin/munin11:40:163
281179960,3cyclictest0-21swapper/311:55:203
281179960,2cyclictest0-21swapper/312:10:203
281179960,2cyclictest0-21swapper/309:46:363
281179960,1cyclictest0-21swapper/309:05:113
281179960,0cyclictest21133-21diskmemload11:35:543
281109966,0cyclictest61650irq/122-eno112:30:132
281109966,0cyclictest61650irq/122-eno112:05:152
281109966,0cyclictest61650irq/122-eno111:10:522
281109966,0cyclictest61650irq/122-eno110:55:342
281109966,0cyclictest61650irq/122-eno110:22:032
281109966,0cyclictest61650irq/122-eno110:05:112
281109966,0cyclictest61650irq/122-eno109:25:152
281109966,0cyclictest61650irq/122-eno109:00:032
281109966,0cyclictest61650irq/122-eno108:54:552
281109966,0cyclictest61650irq/122-eno108:00:192
281109966,0cyclictest61650irq/122-eno107:45:042
281109965,1cyclictest61650irq/122-eno112:25:122
281109965,1cyclictest61650irq/122-eno112:15:112
281109965,1cyclictest61650irq/122-eno109:45:162
281109964,1cyclictest0-21swapper/207:15:162
281109963,2cyclictest6957-21cron08:40:002
281109963,1cyclictest61650irq/122-eno109:20:002
281109962,2cyclictest240-21systemd-journal08:15:012
281109960,4cyclictest8655-21tr11:55:142
281109960,4cyclictest3403-21idleruntime-cro07:25:002
281109960,4cyclictest19995-21unixbench-2d07:55:222
280999966,0cyclictest21-21ksoftirqd/108:25:231
280999960,2cyclictest0-21swapper/110:55:141
280849965,1cyclictest26182-21ntp_states10:00:180
280849965,1cyclictest20776-21ssh12:10:490
280849964,1cyclictest16723-21fschecks_time07:50:120
280849960,6cyclictest0-21swapper/010:45:470
280849960,6cyclictest0-21swapper/009:00:210
280849960,6cyclictest0-21swapper/008:30:090
280849960,6cyclictest0-21swapper/008:09:160
280849960,6cyclictest0-21swapper/007:25:110
280849960,5cyclictest21133-21diskmemload12:00:130
280849960,5cyclictest21133-21diskmemload09:10:120
280849960,5cyclictest21133-21diskmemload09:10:110
280849960,3cyclictest0-21swapper/008:45:110
280849960,0cyclictest0-21swapper/011:25:060
280849960,0cyclictest0-21swapper/008:25:320
281179955,0cyclictest0-21swapper/308:12:473
281179954,1cyclictest35-21ksoftirqd/307:35:003
281179954,1cyclictest11301-21snmpd08:31:463
281179953,1cyclictest3843-21apt-get07:25:133
281179953,1cyclictest1275-21/usr/sbin/munin07:20:103
281109955,0cyclictest61650irq/122-eno108:25:152
281109955,0cyclictest61650irq/122-eno107:50:092
281109953,1cyclictest61650irq/122-eno108:20:152
281179941,1cyclictest28425-21aten_r1power_vo07:10:133
281179941,1cyclictest0-21swapper/308:15:123
281179941,1cyclictest0-21swapper/308:15:123
281109940,1cyclictest240-21systemd-journal08:39:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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