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2026-05-17 - 13:33
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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 Sun May 17, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
251522223150,22sleep30-21swapper/307:07:203
253172200161,26sleep20-21swapper/207:09:272
251752200162,24sleep10-21swapper/107:07:371
252902198160,24sleep00-21swapper/007:09:060
104272620,0sleep30-21swapper/308:50:203
288682190,1sleep028872-21head08:20:210
289292160,0sleep10-21swapper/107:15:141
274932140,0sleep227495-21rt-features09:20:182
25443991412,1cyclictest9-21ksoftirqd/010:45:010
2545999130,13cyclictest0-21swapper/211:03:382
25466991210,1cyclictest35-21ksoftirqd/310:40:003
2545999121,6cyclictest27804-21munin-node10:59:152
2545999121,6cyclictest27804-21munin-node10:59:152
25443991212,0cyclictest9-21ksoftirqd/011:15:460
25443991211,1cyclictest9-21ksoftirqd/009:15:000
25443991210,1cyclictest9-21ksoftirqd/011:30:000
25443991110,1cyclictest9-21ksoftirqd/011:35:140
2545999109,1cyclictest28-21ksoftirqd/212:10:002
2545999109,1cyclictest28-21ksoftirqd/210:10:002
2545999108,1cyclictest28-21ksoftirqd/208:00:012
2545999108,1cyclictest28-21ksoftirqd/207:20:012
25459991010,0cyclictest0-21swapper/209:02:142
2544399109,1cyclictest9-21ksoftirqd/012:15:200
2544399109,1cyclictest9-21ksoftirqd/011:30:120
2544399109,1cyclictest9-21ksoftirqd/011:05:140
2544399109,1cyclictest9-21ksoftirqd/010:50:120
2544399109,1cyclictest9-21ksoftirqd/010:20:130
2544399108,1cyclictest9-21ksoftirqd/010:35:100
2544399108,1cyclictest9-21ksoftirqd/008:35:120
2544399108,1cyclictest9-21ksoftirqd/008:00:180
2544399108,1cyclictest9-21ksoftirqd/007:45:140
2544399107,1cyclictest240-21systemd-journal09:15:550
2544399102,4cyclictest4366-21munin-run11:00:000
2544399102,4cyclictest4366-21munin-run11:00:000
2544399102,4cyclictest22231-21cat08:10:000
25443991010,0cyclictest9-21ksoftirqd/012:30:170
254669998,1cyclictest35-21ksoftirqd/309:25:003
254669998,1cyclictest35-21ksoftirqd/308:20:013
254669998,1cyclictest35-21ksoftirqd/308:20:003
254669997,1cyclictest35-21ksoftirqd/312:00:003
254669997,1cyclictest35-21ksoftirqd/311:00:013
254669997,1cyclictest35-21ksoftirqd/311:00:003
254669991,7cyclictest0-21swapper/310:42:103
254669991,6cyclictest0-21swapper/311:25:193
254599999,0cyclictest28-21ksoftirqd/209:15:012
254599998,1cyclictest28-21ksoftirqd/211:05:192
254599998,1cyclictest0-21swapper/210:43:042
254599997,1cyclictest28-21ksoftirqd/209:40:002
254599995,3cyclictest16968-21head11:15:182
254599990,6cyclictest18099-21diskmemload11:10:142
254439998,1cyclictest9-21ksoftirqd/012:10:160
254439997,1cyclictest9-21ksoftirqd/012:35:120
254439997,1cyclictest9-21ksoftirqd/011:47:130
254439997,1cyclictest9-21ksoftirqd/010:45:190
254439997,1cyclictest9-21ksoftirqd/010:05:140
254439997,1cyclictest9-21ksoftirqd/008:55:130
254439997,1cyclictest9-21ksoftirqd/007:55:000
254669988,0cyclictest35-21ksoftirqd/310:55:003
254669987,1cyclictest35-21ksoftirqd/309:56:163
254669987,1cyclictest35-21ksoftirqd/308:10:013
254669986,1cyclictest6798-21/usr/sbin/munin10:20:123
254669984,1cyclictest240-21systemd-journal09:32:103
254669980,5cyclictest22237-21apt-get09:15:123
254599986,1cyclictest61650irq/122-eno110:50:192
254599986,1cyclictest28-21ksoftirqd/212:35:002
254599986,1cyclictest28-21ksoftirqd/210:05:012
254599986,1cyclictest28-21ksoftirqd/210:05:002
254599981,5cyclictest28-21ksoftirqd/210:37:072
254529980,6cyclictest0-21swapper/110:05:011
254529980,4cyclictest0-21swapper/109:25:121
254529980,3cyclictest0-21swapper/109:20:101
254439988,0cyclictest9-21ksoftirqd/012:20:180
254439988,0cyclictest9-21ksoftirqd/012:00:120
254439987,1cyclictest9-21ksoftirqd/011:50:130
254439987,1cyclictest9-21ksoftirqd/011:00:200
254439987,1cyclictest9-21ksoftirqd/010:30:170
254439987,1cyclictest9-21ksoftirqd/010:15:110
254439987,1cyclictest9-21ksoftirqd/010:00:150
254439987,1cyclictest9-21ksoftirqd/010:00:140
254439987,1cyclictest9-21ksoftirqd/009:50:140
254439987,1cyclictest10488-21ssh10:25:030
254439987,0cyclictest9-21ksoftirqd/011:55:120
254439986,1cyclictest9-21ksoftirqd/012:05:130
254439986,1cyclictest9-21ksoftirqd/008:30:000
254439986,1cyclictest14504-21cat09:00:180
254439981,6cyclictest27804-21munin-node09:57:110
254439980,7cyclictest18099-21diskmemload09:26:190
254439980,7cyclictest0-21swapper/007:15:010
254669977,0cyclictest35-21ksoftirqd/309:48:073
254669976,1cyclictest35-21ksoftirqd/311:19:593
254669976,1cyclictest35-21ksoftirqd/309:40:003
254669976,1cyclictest35-21ksoftirqd/307:50:003
254669976,1cyclictest35-21ksoftirqd/307:40:003
254669976,1cyclictest35-21ksoftirqd/307:15:003
254669975,1cyclictest35-21ksoftirqd/308:33:563
254669975,1cyclictest24055-21ssh10:00:063
254669975,1cyclictest24055-21ssh10:00:063
254669975,1cyclictest16624-21ssh10:31:263
254669975,1cyclictest12475-21ssh10:25:473
254669975,1cyclictest10938-21ssh11:07:273
254669974,1cyclictest35-21ksoftirqd/307:29:533
254669974,1cyclictest19779-21runrttasks12:03:073
254669973,2cyclictest18099-21diskmemload12:32:183
254669973,1cyclictest31960-21ntp_states11:35:183
254669970,6cyclictest6106-21python11:00:203
254669970,4cyclictest11049-21cat11:50:203
254669970,3cyclictest0-21swapper/310:16:053
254599976,1cyclictest61650irq/122-eno111:50:002
254599976,1cyclictest61650irq/122-eno111:30:172
254599976,1cyclictest61650irq/122-eno111:29:412
254599976,1cyclictest61650irq/122-eno110:25:142
254599976,1cyclictest61650irq/122-eno110:10:162
254599976,1cyclictest61650irq/122-eno109:10:122
254599976,1cyclictest61650irq/122-eno107:25:182
254599976,1cyclictest31922-21apt-get12:20:122
254599976,1cyclictest28-21ksoftirqd/211:40:002
254599976,1cyclictest28-21ksoftirqd/209:45:432
254599976,1cyclictest28-21ksoftirqd/208:00:172
254599976,0cyclictest61650irq/122-eno109:54:272
254599975,1cyclictest61650irq/122-eno112:25:162
254599975,1cyclictest28-21ksoftirqd/211:55:002
254599975,1cyclictest28-21ksoftirqd/207:20:122
254599975,1cyclictest11020-21perf08:55:002
254599974,2cyclictest61650irq/122-eno109:55:122
254599971,4cyclictest9467-21nscd07:40:142
254599971,3cyclictest3106-21tail10:15:122
254599970,6cyclictest27876-21nscd07:48:132
254599970,3cyclictest17016-21apt-get12:00:112
254599970,2cyclictest0-21swapper/208:05:122
254599970,1cyclictest0-21swapper/210:20:122
254599970,0cyclictest5477-21latency_hist07:35:012
254529970,5cyclictest0-21swapper/110:40:121
254529970,5cyclictest0-21swapper/109:44:281
254529970,4cyclictest0-21swapper/111:10:231
254529970,4cyclictest0-21swapper/109:45:191
254529970,2cyclictest0-21swapper/112:05:171
254439977,0cyclictest9-21ksoftirqd/012:25:120
254439977,0cyclictest9-21ksoftirqd/011:10:220
254439976,1cyclictest9-21ksoftirqd/010:10:160
254439976,1cyclictest9-21ksoftirqd/009:45:120
254439976,1cyclictest9-21ksoftirqd/009:20:140
254439975,1cyclictest9-21ksoftirqd/009:40:120
254439975,1cyclictest9-21ksoftirqd/007:30:130
254439975,1cyclictest9-21ksoftirqd/007:10:190
254439974,1cyclictest8085-21/usr/sbin/munin07:40:170
254439973,2cyclictest240-21systemd-journal08:17:000
254439973,2cyclictest240-21systemd-journal08:17:000
254439970,7cyclictest0-21swapper/011:40:130
254439970,6cyclictest8898-21aten_r1power_cu08:50:100
254439970,6cyclictest22191-1kworker/u9:209:30:130
254439970,6cyclictest0-21swapper/009:35:130
254439970,6cyclictest0-21swapper/008:10:150
254439970,1cyclictest21626-21ssh11:21:030
254669965,1cyclictest4125-21ssh11:41:033
254669965,1cyclictest35-21ksoftirqd/310:05:003
254669965,1cyclictest35-21ksoftirqd/309:05:013
254669965,1cyclictest35-21ksoftirqd/309:00:003
254669965,1cyclictest35-21ksoftirqd/308:05:003
254669965,1cyclictest35-21ksoftirqd/307:35:003
254669965,1cyclictest32637-21ssh09:27:283
254669965,1cyclictest29862-21ntpq07:15:183
254669965,1cyclictest27678-21ssh10:45:583
254669965,1cyclictest27366-21ssh12:13:363
254669965,1cyclictest23126-21ssh12:07:073
254669965,1cyclictest18847-21ssh09:51:403
254669965,1cyclictest18348-21ssh09:10:103
254669965,1cyclictest11928-21ssh09:43:123
254669965,0cyclictest35-21ksoftirqd/308:45:003
254669964,1cyclictest22080-21ssh11:22:203
254669964,1cyclictest10725-21ssh12:35:113
254669963,1cyclictest35-21ksoftirqd/307:42:383
254669963,1cyclictest240-21systemd-journal10:13:113
254669961,3cyclictest30691-21open_files08:25:183
254669960,6cyclictest29702-21ssh11:32:463
254669960,2cyclictest0-21swapper/312:28:103
254669960,2cyclictest0-21swapper/312:15:263
254669960,1cyclictest0-21swapper/311:47:563
254599966,0cyclictest61650irq/122-eno112:35:112
254599966,0cyclictest61650irq/122-eno112:10:122
254599966,0cyclictest61650irq/122-eno111:40:092
254599966,0cyclictest61650irq/122-eno111:20:072
254599966,0cyclictest61650irq/122-eno110:45:082
254599966,0cyclictest61650irq/122-eno109:40:482
254599966,0cyclictest61650irq/122-eno109:30:052
254599966,0cyclictest61650irq/122-eno109:25:472
254599966,0cyclictest61650irq/122-eno108:40:192
254599966,0cyclictest61650irq/122-eno108:15:132
254599966,0cyclictest61650irq/122-eno108:15:122
254599965,1cyclictest61650irq/122-eno111:55:102
254599965,1cyclictest28-21ksoftirqd/208:25:002
254599965,0cyclictest28166-21apt-get12:15:122
254599964,1cyclictest61650irq/122-eno108:45:202
254599964,1cyclictest61650irq/122-eno108:10:132
254599964,1cyclictest28-21ksoftirqd/207:55:002
254599962,2cyclictest18099-21diskmemload10:30:112
254599962,1cyclictest240-21systemd-journal09:00:002
254599960,5cyclictest0-21swapper/207:15:002
254599960,1cyclictest0-21swapper/208:35:172
254529966,0cyclictest0-21swapper/112:25:241
254529961,4cyclictest0-21swapper/111:57:451
254529961,3cyclictest0-21swapper/110:50:111
254529960,6cyclictest0-21swapper/109:36:041
254529960,3cyclictest0-21swapper/110:25:141
254529960,2cyclictest0-21swapper/109:15:131
254529960,2cyclictest0-21swapper/107:35:111
254529960,0cyclictest0-21swapper/109:52:031
254439965,1cyclictest9-21ksoftirqd/008:45:110
254439965,1cyclictest9-21ksoftirqd/008:40:100
254439965,1cyclictest9-21ksoftirqd/008:30:160
254439964,1cyclictest9-21ksoftirqd/007:30:000
254439961,2cyclictest0-21swapper/007:20:110
254439960,0cyclictest0-21swapper/009:05:110
254439960,0cyclictest0-21swapper/007:35:580
1440260,1sleep10-21swapper/110:11:211
254669954,1cyclictest35-21ksoftirqd/307:25:003
254669954,1cyclictest13315-21ntpq11:10:203
254669953,1cyclictest16942-21taskset07:56:013
254669953,1cyclictest11509-21cut08:55:133
254669952,2cyclictest14111-21/usr/sbin/munin07:50:173
254669952,1cyclictest240-21systemd-journal08:50:003
254669952,1cyclictest240-21systemd-journal08:13:383
254669951,3cyclictest0-21swapper/308:35:123
254669950,2cyclictest0-21swapper/312:21:323
254669950,2cyclictest0-21swapper/308:20:193
254599955,0cyclictest61650irq/122-eno108:27:062
254599952,3cyclictest32488-21fschecks_time08:30:132
254599952,1cyclictest240-21systemd-journal07:35:082
254599950,1cyclictest0-21swapper/209:05:132
254529955,0cyclictest0-21swapper/112:38:261
254529955,0cyclictest0-21swapper/112:17:091
254529955,0cyclictest0-21swapper/111:34:531
254529955,0cyclictest0-21swapper/110:22:281
254529953,1cyclictest124022sleep108:55:181
254529953,1cyclictest0-21swapper/111:52:161
254529952,1cyclictest0-21swapper/110:35:511
254529952,1cyclictest0-21swapper/108:45:141
254529951,2cyclictest0-21swapper/112:20:131
254529951,2cyclictest0-21swapper/109:10:131
254529950,5cyclictest0-21swapper/107:46:241
254529950,4cyclictest0-21swapper/111:43:541
254529950,4cyclictest0-21swapper/111:37:301
254529950,4cyclictest0-21swapper/108:20:001
254529950,4cyclictest0-21swapper/108:20:001
254529950,4cyclictest0-21swapper/107:50:111
254529950,3cyclictest0-21swapper/111:06:131
254529950,3cyclictest0-21swapper/109:55:121
254529950,3cyclictest0-21swapper/109:32:071
254529950,3cyclictest0-21swapper/108:50:131
254529950,2cyclictest0-21swapper/111:27:011
254529950,2cyclictest0-21swapper/111:01:141
254529950,2cyclictest0-21swapper/110:19:081
254529950,2cyclictest0-21swapper/108:35:111
254529950,1cyclictest0-21swapper/112:00:361
254529950,0cyclictest0-21swapper/112:34:181
254529950,0cyclictest0-21swapper/111:17:061
254529950,0cyclictest0-21swapper/110:59:191
254529950,0cyclictest0-21swapper/110:59:191
254439950,0cyclictest0-21swapper/007:55:110
254529944,0cyclictest0-21swapper/107:21:311
254529941,2cyclictest0-21swapper/108:20:121
254529941,1cyclictest0-21swapper/110:30:021
254529941,1cyclictest0-21swapper/108:45:001
254529941,1cyclictest0-21swapper/108:10:131
254529940,3cyclictest0-21swapper/111:23:481
254529940,3cyclictest0-21swapper/110:45:331
254529940,2cyclictest0-21swapper/111:45:021
254529940,2cyclictest0-21swapper/110:00:191
254529940,2cyclictest0-21swapper/110:00:191
254529940,2cyclictest0-21swapper/109:00:191
254529940,1cyclictest17022-21chrt07:57:031
254529940,1cyclictest0-21swapper/108:30:191
254529940,1cyclictest0-21swapper/108:05:121
254529940,1cyclictest0-21swapper/107:10:141
254529940,0cyclictest0-21swapper/108:25:191
254529940,0cyclictest0-21swapper/108:01:361
254529931,1cyclictest0-21swapper/109:05:111
254529931,1cyclictest0-21swapper/107:30:101
254529931,1cyclictest0-21swapper/107:25:121
254529930,3cyclictest0-21swapper/112:10:171
254529930,1cyclictest0-21swapper/107:40:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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