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2026-07-30 - 15:30
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Thu Jul 30, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
266582213178,22sleep30-21swapper/307:05:593
268532205146,44sleep20-21swapper/207:08:312
266702205155,23sleep00-21swapper/007:06:080
268002199160,26sleep10-21swapper/107:07:501
27061991412,1cyclictest9-21ksoftirqd/010:20:000
27079991312,1cyclictest28-21ksoftirqd/210:50:002
2706199122,5cyclictest12024-21latency_hist07:45:000
27061991210,1cyclictest9-21ksoftirqd/009:10:000
27079991110,1cyclictest28-21ksoftirqd/210:25:022
27079991110,1cyclictest28-21ksoftirqd/210:17:102
27079991110,1cyclictest28-21ksoftirqd/209:30:162
2706199119,1cyclictest9-21ksoftirqd/011:25:130
27061991110,1cyclictest9-21ksoftirqd/011:50:140
281982100,0sleep20-21swapper/211:37:332
2708899100,2cyclictest0-21swapper/312:10:123
2707999109,1cyclictest28-21ksoftirqd/210:40:152
2707999109,1cyclictest28-21ksoftirqd/209:45:002
2707999108,1cyclictest28-21ksoftirqd/211:15:132
2707999106,1cyclictest61650irq/122-eno109:14:012
2707999100,10cyclictest0-21swapper/210:07:302
2706199109,1cyclictest9-21ksoftirqd/009:10:210
2706199109,1cyclictest9-21ksoftirqd/008:40:120
2706199109,1cyclictest9-21ksoftirqd/007:15:000
2706199108,1cyclictest9-21ksoftirqd/012:20:000
2706199108,1cyclictest9-21ksoftirqd/010:15:000
2706199108,1cyclictest9-21ksoftirqd/007:20:000
2706199104,6cyclictest3229-21perf08:35:000
2706199102,4cyclictest16767-21perf07:55:000
27061991010,0cyclictest9-21ksoftirqd/010:55:110
2706199100,1cyclictest240-21systemd-journal09:40:010
24402108,1sleep335-21ksoftirqd/312:33:413
4916290,1sleep10-21swapper/109:32:401
270889992,4cyclictest5214-21/usr/sbin/munin10:20:203
270889991,4cyclictest4449-21/usr/sbin/munin07:25:193
270889990,5cyclictest19744-21diskmemload09:45:583
270799998,1cyclictest28-21ksoftirqd/212:15:132
270799998,1cyclictest28-21ksoftirqd/211:10:132
270799998,1cyclictest28-21ksoftirqd/209:50:132
270799997,1cyclictest28-21ksoftirqd/211:52:372
270799997,1cyclictest28-21ksoftirqd/210:50:182
270799990,8cyclictest0-21swapper/208:45:172
270619998,1cyclictest9-21ksoftirqd/010:20:150
270619997,1cyclictest9-21ksoftirqd/011:40:160
270619997,1cyclictest9-21ksoftirqd/009:05:000
270619997,1cyclictest30440-21ssh09:23:460
270619990,7cyclictest11973-21kworker/0:007:35:130
270619990,6cyclictest22218-21apt-get11:30:110
270889987,1cyclictest561-21nscd09:18:073
270889987,1cyclictest561-21nscd09:18:073
270889987,1cyclictest35-21ksoftirqd/307:15:003
270889986,1cyclictest27536-21apt-get09:20:133
270889986,1cyclictest11301-21snmpd12:17:043
270889986,1cyclictest11301-21snmpd12:01:233
270889982,3cyclictest26833-21needreboot11:35:153
270889981,4cyclictest0-21swapper/311:07:023
270889980,3cyclictest19744-21diskmemload11:50:213
270889980,1cyclictest4904-21users12:35:193
270889980,1cyclictest0-21swapper/309:40:113
270799987,1cyclictest28-21ksoftirqd/211:55:132
270799987,1cyclictest28-21ksoftirqd/207:55:002
270799986,1cyclictest61650irq/122-eno112:10:152
270799986,1cyclictest61650irq/122-eno109:20:192
270799986,1cyclictest28-21ksoftirqd/211:45:002
270799986,1cyclictest28-21ksoftirqd/211:30:132
270799986,1cyclictest28-21ksoftirqd/209:20:002
270799986,1cyclictest28-21ksoftirqd/209:20:002
270799986,1cyclictest28-21ksoftirqd/208:15:012
270799986,1cyclictest28-21ksoftirqd/207:15:012
270799981,6cyclictest0-21swapper/212:05:142
270799980,8cyclictest61650irq/122-eno111:24:542
270799980,1cyclictest9893-21/usr/sbin/munin07:40:202
270619988,0cyclictest9-21ksoftirqd/011:35:140
270619988,0cyclictest9-21ksoftirqd/010:45:120
270619988,0cyclictest9-21ksoftirqd/009:30:190
270619988,0cyclictest9-21ksoftirqd/009:15:140
270619988,0cyclictest9-21ksoftirqd/009:15:140
270619988,0cyclictest9-21ksoftirqd/007:25:140
270619987,1cyclictest9-21ksoftirqd/008:50:140
270619987,1cyclictest9-21ksoftirqd/008:10:140
270619987,0cyclictest9-21ksoftirqd/009:50:210
270619986,1cyclictest9-21ksoftirqd/011:05:160
270619986,1cyclictest9-21ksoftirqd/008:35:140
270619986,1cyclictest9-21ksoftirqd/007:30:130
270619986,1cyclictest16181-21head12:05:210
270619981,3cyclictest0-21swapper/010:25:140
270619980,7cyclictest4846-21grep12:35:190
270619980,7cyclictest27670-21/usr/sbin/munin10:50:200
270619980,1cyclictest8353-21wc11:55:160
270889976,1cyclictest7086-21ntpq09:35:173
270889976,1cyclictest24162-21ntpq10:45:173
270889976,1cyclictest19849-21ntpq11:25:163
270889976,1cyclictest11301-21snmpd12:05:443
270889976,1cyclictest11301-21snmpd11:04:303
270889976,1cyclictest11301-21snmpd10:15:563
270889976,1cyclictest11301-21snmpd10:10:053
270889976,1cyclictest11301-21snmpd08:07:433
270889976,1cyclictest11301-21snmpd07:41:043
270889975,1cyclictest35-21ksoftirqd/307:39:113
270889975,1cyclictest21331-21ssh10:41:153
270889975,1cyclictest11301-21snmpd10:25:203
270889975,1cyclictest11301-21snmpd08:14:433
270889975,1cyclictest11301-21snmpd07:50:523
270889972,4cyclictest19744-21diskmemload11:30:103
270889972,2cyclictest19769-21idleruntime-cro09:10:003
270889970,5cyclictest29944-21ntp_states08:20:173
270889970,5cyclictest0-21swapper/311:10:113
270889970,2cyclictest240-21systemd-journal10:55:003
270889970,1cyclictest29267-21/usr/sbin/munin11:40:203
270799977,0cyclictest28-21ksoftirqd/212:20:122
270799977,0cyclictest28-21ksoftirqd/208:20:002
270799977,0cyclictest0-21swapper/209:58:572
270799976,1cyclictest61650irq/122-eno112:00:122
270799976,1cyclictest61650irq/122-eno111:45:112
270799976,1cyclictest61650irq/122-eno110:35:152
270799976,1cyclictest61650irq/122-eno110:00:122
270799976,1cyclictest61650irq/122-eno109:05:112
270799976,1cyclictest28-21ksoftirqd/209:45:182
270799976,1cyclictest28-21ksoftirqd/209:25:152
270799975,1cyclictest61650irq/122-eno111:25:132
270799975,1cyclictest61650irq/122-eno107:15:002
270799975,1cyclictest2196-21ssh11:00:152
270799975,1cyclictest11301-21snmpd08:35:512
270799974,1cyclictest548-21systemd-logind12:25:162
270799972,3cyclictest27050-21cyclictest10:12:082
270799970,6cyclictest0-21swapper/212:39:142
270799970,4cyclictest0-21swapper/210:30:102
270799970,4cyclictest0-21swapper/210:26:482
270709971,1cyclictest0-21swapper/111:40:201
270709970,6cyclictest0-21swapper/110:50:071
270709970,3cyclictest0-21swapper/112:12:271
270709970,2cyclictest0-21swapper/109:48:111
270619977,0cyclictest9-21ksoftirqd/011:45:160
270619976,1cyclictest9-21ksoftirqd/011:10:190
270619976,1cyclictest9-21ksoftirqd/010:35:110
270619976,1cyclictest9-21ksoftirqd/007:45:120
270619976,1cyclictest11301-21snmpd12:32:540
270619976,1cyclictest11301-21snmpd08:03:280
270619975,1cyclictest9-21ksoftirqd/010:40:130
270619975,1cyclictest9-21ksoftirqd/008:55:140
270619975,1cyclictest26065-21ssh10:02:440
270619975,1cyclictest12785-21ssh12:00:340
270619975,1cyclictest11301-21snmpd08:07:490
270619971,3cyclictest31257-21telnet09:25:120
270619970,6cyclictest19744-21diskmemload12:10:190
270619970,6cyclictest0-21swapper/012:25:050
270619970,6cyclictest0-21swapper/010:30:130
270619970,1cyclictest3028-21ssh11:00:470
270619970,1cyclictest27538-21ssh10:05:140
270619970,1cyclictest19744-21diskmemload12:22:290
270619970,1cyclictest17034-21ssh11:20:330
270619970,1cyclictest13018-21telnet09:45:140
270619970,1cyclictest12178-21/usr/sbin/munin11:15:130
270619970,1cyclictest0-21swapper/009:55:160
30742260,1sleep10-21swapper/108:23:121
270889965,1cyclictest6682-21cat08:40:163
270889965,1cyclictest5008-21ssh09:32:583
270889965,1cyclictest32299-21ntpq08:25:153
270889965,1cyclictest32019-21ssh10:56:073
270889965,1cyclictest23101-21ssh09:59:333
270889965,1cyclictest2266-21ssh11:45:463
270889965,1cyclictest11301-21snmpd09:50:193
270889965,1cyclictest11301-21snmpd08:01:583
270889965,1cyclictest11301-21snmpd07:47:463
270889964,1cyclictest27982-21cat10:05:163
270889963,1cyclictest9921-21/usr/sbin/munin08:45:233
270889962,2cyclictest240-21systemd-journal09:14:023
270889961,3cyclictest29674-21grep12:25:143
270889961,3cyclictest0-21swapper/308:55:153
270889960,4cyclictest0-21swapper/311:16:403
270889960,3cyclictest31398-21cpuspeed_turbos09:25:123
270889960,3cyclictest0-21swapper/310:00:183
270889960,2cyclictest8313-21irqstats11:55:163
270889960,2cyclictest0-21swapper/311:20:323
270889960,2cyclictest0-21swapper/310:30:333
270889960,1cyclictest0-21swapper/310:35:113
270889960,1cyclictest0-21swapper/309:00:153
270799966,0cyclictest61650irq/122-eno112:30:082
270799966,0cyclictest61650irq/122-eno111:05:472
270799966,0cyclictest61650irq/122-eno108:55:172
270799966,0cyclictest61650irq/122-eno108:53:072
270799966,0cyclictest61650irq/122-eno108:40:242
270799966,0cyclictest61650irq/122-eno108:30:432
270799966,0cyclictest61650irq/122-eno108:05:122
270799966,0cyclictest61650irq/122-eno107:35:042
270799966,0cyclictest61650irq/122-eno107:30:112
270799966,0cyclictest61650irq/122-eno107:25:112
270799965,1cyclictest28-21ksoftirqd/208:20:122
270799965,1cyclictest28-21ksoftirqd/208:05:002
270799965,1cyclictest28-21ksoftirqd/207:45:002
270799965,1cyclictest11301-21snmpd08:29:202
270799965,1cyclictest11301-21snmpd07:21:392
270799964,1cyclictest17020-21head07:55:132
270799962,2cyclictest0-21swapper/210:55:042
270799960,6cyclictest0-21swapper/209:35:072
270709966,0cyclictest0-21swapper/111:53:471
270709960,6cyclictest0-21swapper/111:26:201
270709960,6cyclictest0-21swapper/110:01:011
270709960,3cyclictest0-21swapper/110:35:181
270709960,3cyclictest0-21swapper/109:12:391
270709960,3cyclictest0-21swapper/108:50:011
270709960,3cyclictest0-21swapper/108:05:141
270709960,2cyclictest0-21swapper/112:20:151
270709960,2cyclictest0-21swapper/112:00:131
270709960,2cyclictest0-21swapper/111:33:291
270709960,2cyclictest0-21swapper/111:09:371
270709960,2cyclictest0-21swapper/110:41:321
270709960,2cyclictest0-21swapper/109:25:161
270709960,2cyclictest0-21swapper/107:35:111
270709960,1cyclictest0-21swapper/112:37:541
270709960,1cyclictest0-21swapper/111:59:291
270709960,1cyclictest0-21swapper/111:35:101
270709960,1cyclictest0-21swapper/110:05:141
270709960,1cyclictest0-21swapper/109:20:191
270619965,1cyclictest9-21ksoftirqd/008:20:130
270619964,1cyclictest9-21ksoftirqd/008:45:160
270619960,6cyclictest0-21swapper/009:40:120
270619960,6cyclictest0-21swapper/007:55:490
270619960,0cyclictest0-21swapper/008:25:100
270619960,0cyclictest0-21swapper/007:20:120
270889954,1cyclictest31669-21ntp_states07:15:183
270889954,1cyclictest11301-21snmpd08:52:383
270889954,1cyclictest11301-21snmpd08:36:143
270889952,1cyclictest27289-21if_err_eno108:15:153
270889951,1cyclictest6737-21timerwakeupswit07:30:203
270889950,5cyclictest0-21swapper/307:22:553
270889950,1cyclictest0-21swapper/312:20:153
270799955,0cyclictest61650irq/122-eno109:00:042
270709955,0cyclictest306992sleep112:26:341
270709955,0cyclictest0-21swapper/108:27:431
270709955,0cyclictest0-21swapper/108:10:191
270709955,0cyclictest0-21swapper/107:51:451
270709955,0cyclictest0-21swapper/107:43:461
270709951,2cyclictest0-21swapper/107:25:121
270709951,1cyclictest0-21swapper/111:15:111
270709951,1cyclictest0-21swapper/110:20:111
270709951,1cyclictest0-21swapper/109:35:111
270709951,1cyclictest0-21swapper/107:30:111
270709950,5cyclictest0-21swapper/112:33:511
270709950,5cyclictest0-21swapper/110:11:351
270709950,5cyclictest0-21swapper/108:35:191
270709950,3cyclictest0-21swapper/112:15:171
270709950,3cyclictest0-21swapper/111:20:121
270709950,3cyclictest0-21swapper/110:56:581
270709950,3cyclictest0-21swapper/109:50:131
270709950,2cyclictest0-21swapper/111:49:031
270709950,2cyclictest0-21swapper/110:15:531
270709950,2cyclictest0-21swapper/109:17:381
270709950,2cyclictest0-21swapper/109:17:381
270709950,2cyclictest0-21swapper/107:50:001
270709950,1cyclictest0-21swapper/110:25:091
270709950,1cyclictest0-21swapper/109:57:381
270709950,1cyclictest0-21swapper/109:40:091
270709950,1cyclictest0-21swapper/108:05:001
270709950,0cyclictest0-21swapper/110:30:451
270619950,4cyclictest26391-21/usr/sbin/munin08:15:190
270889943,1cyclictest1904-21ls08:30:163
270889941,2cyclictest16961-21apt-get07:55:113
270709944,0cyclictest0-21swapper/107:22:001
270709943,1cyclictest0-21swapper/111:01:071
270709941,1cyclictest0-21swapper/108:40:151
270709941,0cyclictest0-21swapper/107:55:131
270709940,3cyclictest0-21swapper/109:05:121
270709940,2cyclictest0-21swapper/111:10:181
270709940,2cyclictest0-21swapper/110:45:121
270709940,2cyclictest0-21swapper/107:15:181
270709940,1cyclictest0-21swapper/112:05:511
270709940,0cyclictest0-21swapper/108:50:171
270709940,0cyclictest0-21swapper/108:15:171
270709933,0cyclictest0-21swapper/108:31:591
270709930,3cyclictest0-21swapper/109:00:111
270709930,1cyclictest0-21swapper/107:10:161
270709930,0cyclictest0-21swapper/108:55:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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