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2026-04-15 - 01:42
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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 Apr 15, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189842216149,23sleep20-21swapper/219:08:582
190192210160,24sleep00-21swapper/019:09:240
189602209158,25sleep30-21swapper/319:08:393
190252204149,21sleep10-21swapper/119:09:291
296282640,0sleep10-21swapper/122:13:271
205992180,0sleep020603-21cron20:20:000
19164991713,4cyclictest21-21ksoftirqd/121:27:351
217612150,0sleep1201rcuc/121:20:201
19164991410,4cyclictest56-21kworker/1:119:58:021
19164991410,4cyclictest21-21ksoftirqd/100:04:221
247732130,0sleep20-21swapper/222:05:352
1916499128,4cyclictest56-21kworker/1:122:34:461
19161991210,1cyclictest12003-21dump-pmu-power21:10:000
1916499110,11cyclictest0-21swapper/121:05:141
1916199119,1cyclictest9-21ksoftirqd/020:00:000
1916199112,4cyclictest22648-21latency_hist22:05:000
1917799109,1cyclictest35-21ksoftirqd/322:10:003
1917799109,1cyclictest35-21ksoftirqd/320:50:003
1917799109,1cyclictest35-21ksoftirqd/319:55:003
1917799101,7cyclictest22017-1kworker/u9:121:38:323
1916999100,9cyclictest13930-21ssh23:16:262
1916999100,2cyclictest0-21swapper/223:41:042
1916999100,2cyclictest0-21swapper/220:15:212
1916499106,4cyclictest21-21ksoftirqd/123:53:101
1916499106,4cyclictest21-21ksoftirqd/120:54:021
1916499106,4cyclictest0-21swapper/120:42:501
1916199108,1cyclictest9-21ksoftirqd/019:40:000
1916199101,4cyclictest25416-21latency_hist20:30:000
1916199100,5cyclictest0-21swapper/021:10:130
191779998,1cyclictest35-21ksoftirqd/323:40:003
191779998,1cyclictest35-21ksoftirqd/321:15:003
191779998,0cyclictest35-21ksoftirqd/320:45:003
191699998,1cyclictest28-21ksoftirqd/223:50:002
191699997,1cyclictest28-21ksoftirqd/220:00:132
191699997,1cyclictest28-21ksoftirqd/219:20:002
191699990,6cyclictest3930-21/usr/sbin/munin23:05:132
191649998,1cyclictest21-21ksoftirqd/122:25:171
191649990,5cyclictest0-21swapper/120:45:131
191619998,1cyclictest321-21ssh21:35:140
191619997,1cyclictest9-21ksoftirqd/021:05:010
191619994,3cyclictest0-21swapper/023:38:460
191619991,4cyclictest32311-21cat23:00:000
191619990,4cyclictest6496-21sed19:50:000
9266280,0sleep30-21swapper/321:45:223
372280,1sleep10-21swapper/119:35:151
191779987,1cyclictest35-21ksoftirqd/322:00:003
191779986,1cyclictest35-21ksoftirqd/320:29:113
191779983,4cyclictest35-21ksoftirqd/322:54:103
191779983,3cyclictest9467-21nscd22:43:113
191779982,3cyclictest11999-21diskmemload23:30:133
191699987,1cyclictest28-21ksoftirqd/221:55:012
191699987,1cyclictest28-21ksoftirqd/219:45:002
191699986,1cyclictest61650irq/122-eno122:50:162
191699986,1cyclictest61650irq/122-eno122:12:352
191699986,1cyclictest61650irq/122-eno121:20:212
191699986,1cyclictest61650irq/122-eno100:35:162
191699986,1cyclictest28-21ksoftirqd/222:45:012
191699986,1cyclictest28-21ksoftirqd/221:15:422
191699986,1cyclictest28-21ksoftirqd/200:15:002
191699980,8cyclictest0-21swapper/221:12:452
191699980,6cyclictest29683-21/usr/sbin/munin19:30:152
191699980,3cyclictest0-21swapper/220:20:122
191649988,0cyclictest21-21ksoftirqd/123:46:001
191649988,0cyclictest21-21ksoftirqd/123:43:121
191649988,0cyclictest21-21ksoftirqd/123:28:541
191649988,0cyclictest21-21ksoftirqd/123:19:381
191649988,0cyclictest21-21ksoftirqd/123:00:301
191649988,0cyclictest21-21ksoftirqd/122:55:241
191649988,0cyclictest21-21ksoftirqd/122:46:361
191649988,0cyclictest21-21ksoftirqd/122:20:041
191649988,0cyclictest21-21ksoftirqd/122:15:141
191649988,0cyclictest21-21ksoftirqd/122:08:501
191649988,0cyclictest21-21ksoftirqd/121:17:371
191649988,0cyclictest21-21ksoftirqd/120:33:181
191649988,0cyclictest21-21ksoftirqd/100:13:241
191649987,1cyclictest21-21ksoftirqd/123:35:171
191649987,1cyclictest21-21ksoftirqd/123:05:111
191649986,1cyclictest111rcu_preempt00:32:391
191649984,4cyclictest0-21swapper/122:01:091
191649980,8cyclictest0-21swapper/120:10:131
191649980,8cyclictest0-21swapper/119:49:091
191649980,7cyclictest0-21swapper/100:35:131
191649980,6cyclictest21-21ksoftirqd/121:00:001
191619986,1cyclictest19486-21ssh00:05:310
191619986,1cyclictest16307-21sort21:55:170
191619986,1cyclictest10349-21ssh00:36:240
191619985,0cyclictest11999-21diskmemload21:33:120
191619983,2cyclictest240-21systemd-journal22:36:280
191619981,6cyclictest6148-21ssh23:50:060
191619981,1cyclictest6970-21ssh23:08:450
191619981,1cyclictest14384-21ssh23:17:400
191619980,7cyclictest19850-21df19:10:120
191619980,7cyclictest14570-21ssh21:54:290
191619980,7cyclictest12634-21ssh23:57:370
191619980,5cyclictest11999-21diskmemload23:10:120
191619980,2cyclictest0-21swapper/019:20:120
191779977,0cyclictest35-21ksoftirqd/323:15:153
191779977,0cyclictest35-21ksoftirqd/300:07:533
191779976,1cyclictest35-21ksoftirqd/323:20:143
191779976,1cyclictest35-21ksoftirqd/323:15:003
191779976,1cyclictest35-21ksoftirqd/320:10:013
191779976,1cyclictest35-21ksoftirqd/319:25:003
191779976,1cyclictest35-21ksoftirqd/300:19:593
191779976,1cyclictest27598-21cat22:10:133
191779975,1cyclictest35-21ksoftirqd/322:25:203
191779975,1cyclictest35-21ksoftirqd/320:00:013
191779975,1cyclictest25110-21cat21:25:153
191779975,1cyclictest24304-21ssh22:49:103
191779971,5cyclictest2112-21/usr/sbin/munin22:20:183
191779971,4cyclictest8128-21ssh00:35:043
191779971,3cyclictest30712-21apt-get22:15:123
191779970,6cyclictest0-21swapper/322:55:193
191779970,5cyclictest0-21swapper/321:42:433
191699976,1cyclictest61650irq/122-eno123:50:112
191699976,1cyclictest61650irq/122-eno123:00:132
191699976,1cyclictest61650irq/122-eno122:19:162
191699976,1cyclictest61650irq/122-eno100:26:422
191699976,1cyclictest61650irq/122-eno100:21:512
191699976,1cyclictest28-21ksoftirqd/221:30:062
191699976,0cyclictest61650irq/122-eno121:25:112
191699975,1cyclictest61650irq/122-eno123:35:112
191699975,1cyclictest61650irq/122-eno121:40:152
191699975,1cyclictest61650irq/122-eno120:00:002
191699975,1cyclictest61650irq/122-eno100:00:002
191699975,1cyclictest28-21ksoftirqd/200:15:002
191699975,1cyclictest11999-21diskmemload22:25:152
191699973,1cyclictest294-21systemd-udevd20:49:072
191699970,1cyclictest0-21swapper/223:20:212
191699970,1cyclictest0-21swapper/219:10:122
191649977,0cyclictest21-21ksoftirqd/123:56:241
191649977,0cyclictest21-21ksoftirqd/123:21:021
191649977,0cyclictest21-21ksoftirqd/123:11:501
191649977,0cyclictest21-21ksoftirqd/122:40:561
191649977,0cyclictest21-21ksoftirqd/121:44:081
191649977,0cyclictest21-21ksoftirqd/119:40:001
191649977,0cyclictest0-21swapper/123:30:111
191649976,1cyclictest21-21ksoftirqd/121:55:131
191649976,1cyclictest21-21ksoftirqd/121:54:271
191649976,1cyclictest21-21ksoftirqd/120:05:151
191649974,3cyclictest0-21swapper/120:20:261
191649974,0cyclictest0-21swapper/121:49:591
191649970,7cyclictest0-21swapper/122:51:111
191649970,7cyclictest0-21swapper/122:36:591
191619976,1cyclictest2124-21ssh22:20:120
191619976,1cyclictest19563-21apt-get23:25:110
191619976,1cyclictest17022-21cat20:10:150
191619976,1cyclictest13817-21/usr/sbin/munin00:00:140
191619975,2cyclictest1982-21sendmail-mta19:43:100
191619975,1cyclictest23369-21/usr/sbin/munin23:30:200
191619971,6cyclictest24468-21ssh22:49:360
191619970,7cyclictest0-21swapper/000:18:240
191619970,6cyclictest7443-21ssh21:45:030
191619970,6cyclictest6987-21sshd20:56:400
191619970,6cyclictest4324-21ssh00:30:030
191619970,6cyclictest29355-21taskset19:28:580
191619970,6cyclictest26283-21df_inode20:30:110
191619970,6cyclictest24060-21ntpq22:05:170
191619970,6cyclictest17310-21ssh22:40:070
191619970,6cyclictest1192-21fschecks_count00:25:150
191619970,6cyclictest11666-21ssh22:30:480
191619970,6cyclictest0-21swapper/023:20:160
191619970,6cyclictest0-21swapper/021:15:220
191619970,6cyclictest0-21swapper/019:50:160
191619970,6cyclictest0-21swapper/000:20:150
191619970,5cyclictest11999-21diskmemload21:25:470
191619970,2cyclictest30712-21apt-get22:15:120
191619970,1cyclictest5896-21ssh22:25:080
191619970,1cyclictest4542-21ssh23:46:210
191619970,1cyclictest4508-21ssh21:40:140
191619970,1cyclictest379-21ssh23:40:290
191619970,1cyclictest29469-21ssh22:13:010
191619970,1cyclictest2859-21aten_r1power_fr20:50:130
191619970,1cyclictest27623-21ssh22:52:490
191619970,1cyclictest23157-21ssh21:23:160
191619970,1cyclictest21439-21chrt00:10:130
191619970,1cyclictest0-21swapper/020:35:190
191779966,0cyclictest11999-21diskmemload23:00:503
191779965,1cyclictest8036-21ssh23:50:303
191779965,1cyclictest5293-21cat00:30:163
191779965,1cyclictest35-21ksoftirqd/321:50:133
191779965,1cyclictest35-21ksoftirqd/321:15:153
191779965,1cyclictest35-21ksoftirqd/321:05:153
191779965,1cyclictest35-21ksoftirqd/319:39:593
191779965,1cyclictest35-21ksoftirqd/319:20:003
191779965,1cyclictest31075-21ssh00:20:313
191779965,1cyclictest2953-21ssh00:26:553
191779965,1cyclictest2912-21ssh23:45:153
191779965,1cyclictest22648-21ssh21:21:593
191779965,1cyclictest22071-21ssh23:27:153
191779965,1cyclictest15888-21ssh00:01:073
191779965,1cyclictest13440-21ssh22:35:013
191779965,1cyclictest12705-21ssh23:57:483
191779965,0cyclictest64972sleep323:07:293
191779964,1cyclictest35-21ksoftirqd/320:10:133
191779964,1cyclictest27739-21sshd20:33:103
191779962,0cyclictest11999-21diskmemload00:11:103
191779961,3cyclictest0-21swapper/321:30:183
191779960,2cyclictest5835-21fschecks_time20:55:143
191779960,1cyclictest11367-21unixbench-2d22:30:213
191699966,0cyclictest61650irq/122-eno123:30:462
191699966,0cyclictest61650irq/122-eno122:55:122
191699966,0cyclictest61650irq/122-eno122:40:142
191699966,0cyclictest61650irq/122-eno122:35:152
191699966,0cyclictest61650irq/122-eno122:30:022
191699966,0cyclictest61650irq/122-eno122:20:102
191699966,0cyclictest61650irq/122-eno121:50:142
191699966,0cyclictest61650irq/122-eno121:46:262
191699966,0cyclictest61650irq/122-eno121:38:332
191699966,0cyclictest61650irq/122-eno121:06:102
191699966,0cyclictest61650irq/122-eno120:57:072
191699966,0cyclictest61650irq/122-eno120:43:092
191699966,0cyclictest61650irq/122-eno120:12:542
191699966,0cyclictest61650irq/122-eno119:20:192
191699966,0cyclictest61650irq/122-eno100:30:122
191699966,0cyclictest61650irq/122-eno100:05:142
191699966,0cyclictest61650irq/122-eno100:00:392
191699965,1cyclictest61650irq/122-eno123:25:112
191699965,1cyclictest61650irq/122-eno123:13:382
191699965,1cyclictest61650irq/122-eno122:00:112
191699964,1cyclictest6695-21apt-get19:50:102
191699964,1cyclictest28-21ksoftirqd/219:40:002
191699963,1cyclictest240-21systemd-journal20:50:252
191699961,3cyclictest25773-21/usr/sbin/munin20:30:162
191649966,0cyclictest211ksoftirqd/120:35:151
191649966,0cyclictest21-21ksoftirqd/121:30:101
191649966,0cyclictest21-21ksoftirqd/121:14:501
191649966,0cyclictest21-21ksoftirqd/119:30:181
191649966,0cyclictest21-21ksoftirqd/119:10:121
191649966,0cyclictest21-21ksoftirqd/100:15:111
191649966,0cyclictest0-21swapper/119:15:121
191649965,1cyclictest21-21ksoftirqd/120:25:141
191649965,1cyclictest21-21ksoftirqd/120:15:201
191649965,1cyclictest21-21ksoftirqd/119:25:111
191649960,5cyclictest0-21swapper/100:25:161
191649960,4cyclictest0-21swapper/100:20:121
191649960,3cyclictest0-21swapper/100:05:441
191649960,1cyclictest111rcu_preempt21:35:141
191619965,1cyclictest2453-21ssh23:01:480
191619964,1cyclictest9-21ksoftirqd/020:45:130
191619961,3cyclictest22192-21rt-features20:20:190
191619961,2cyclictest0-21swapper/020:00:110
191619960,6cyclictest0-21swapper/020:05:140
191619960,0cyclictest0-21swapper/020:40:100
191619960,0cyclictest0-21swapper/019:19:060
191779955,0cyclictest35-21ksoftirqd/319:35:003
191779954,1cyclictest4675-21sshd20:52:103
191779954,1cyclictest35-21ksoftirqd/320:05:013
191779954,1cyclictest342-21ssh23:40:243
191779954,1cyclictest19108-21ssh22:00:113
191779953,1cyclictest28692-21grep20:35:143
191779952,1cyclictest240-21systemd-journal21:04:553
191779950,5cyclictest0-21swapper/320:16:453
191699955,0cyclictest61650irq/122-eno121:00:142
191699955,0cyclictest61650irq/122-eno119:45:342
191699955,0cyclictest61650irq/122-eno119:25:112
191699954,1cyclictest29284-21ntpq20:35:182
191699953,1cyclictest28-21ksoftirqd/220:05:112
191699950,1cyclictest0-21swapper/220:25:152
191649955,0cyclictest21-21ksoftirqd/119:50:101
191649953,1cyclictest0-21swapper/120:00:111
191649950,2cyclictest0-21swapper/121:00:121
191649950,2cyclictest0-21swapper/119:20:151
191619950,4cyclictest29674-21chrt19:30:060
191779942,1cyclictest28159-21sed19:25:153
191779942,1cyclictest2267-21grep19:40:143
191779941,1cyclictest21160-21tr20:20:133
191779940,1cyclictest19746-21cstates19:10:123
191779940,0cyclictest0-21swapper/319:45:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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