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2026-03-15 - 20:11
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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 Sun Mar 15, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171052206173,21sleep00-21swapper/007:06:270
172792202164,24sleep30-21swapper/307:08:433
171892199160,26sleep20-21swapper/207:07:352
171512198161,24sleep10-21swapper/107:07:041
8052180,0sleep00-21swapper/010:20:110
86982140,0sleep30-21swapper/311:10:213
17475991311,1cyclictest18799-21taskset11:25:132
1747599119,1cyclictest28-21ksoftirqd/207:30:012
1747599119,1cyclictest28-21ksoftirqd/207:19:592
1747599117,0cyclictest0-21swapper/210:20:192
1747599110,2cyclictest26035-21/usr/sbin/munin08:35:202
17463991110,1cyclictest9-21ksoftirqd/009:40:000
1748299102,5cyclictest17530-21kworker/u8:212:29:203
1748299102,4cyclictest240-21systemd-journal08:55:013
1747599100,9cyclictest0-21swapper/209:42:242
1746399102,4cyclictest29967-21cat07:35:000
1746399101,8cyclictest24494-21ssh09:26:090
174759998,1cyclictest28-21ksoftirqd/209:50:002
174759994,2cyclictest240-21systemd-journal11:20:002
174639998,1cyclictest561-21nscd12:31:010
174829987,1cyclictest35-21ksoftirqd/310:45:013
174829986,1cyclictest707-21snmpd07:17:123
174829986,1cyclictest35-21ksoftirqd/311:05:003
174759986,1cyclictest707-21snmpd12:10:142
174759986,1cyclictest707-21snmpd11:52:162
174759986,1cyclictest707-21snmpd11:14:482
174759986,1cyclictest707-21snmpd08:04:152
174759986,1cyclictest61650irq/122-eno111:30:182
174759986,1cyclictest61650irq/122-eno110:59:592
174759986,1cyclictest61650irq/122-eno109:55:162
174759986,1cyclictest61650irq/122-eno108:55:152
174759980,7cyclictest18741-21ssh10:00:192
174759980,7cyclictest0-21swapper/210:40:452
174759980,5cyclictest8017-21kworker/u8:009:12:132
174689980,6cyclictest0-21swapper/111:15:121
174689980,3cyclictest0-21swapper/108:00:121
174639987,1cyclictest9-21ksoftirqd/012:40:010
174639986,1cyclictest707-21snmpd09:46:220
174639986,1cyclictest707-21snmpd09:11:200
174639986,1cyclictest707-21snmpd07:38:240
174639986,1cyclictest22220-21cat08:25:160
174639982,3cyclictest10111-21diskmemload11:40:200
174639981,6cyclictest21296-21ssh10:45:160
174639981,6cyclictest12144-21perf10:35:010
174639981,1cyclictest3019-1kworker/u9:112:29:240
174639980,7cyclictest4852-21ssh11:48:440
174639980,4cyclictest13320-21perf12:00:000
174639980,1cyclictest2151-21ssh11:03:020
174829976,1cyclictest707-21snmpd09:55:393
174829976,1cyclictest35-21ksoftirqd/311:30:003
174829975,1cyclictest707-21snmpd11:08:363
174829975,1cyclictest707-21snmpd10:57:123
174829975,1cyclictest707-21snmpd10:32:533
174829975,1cyclictest707-21snmpd10:28:043
174829975,1cyclictest707-21snmpd10:17:563
174829975,1cyclictest707-21snmpd09:50:253
174829975,1cyclictest707-21snmpd09:45:573
174829975,1cyclictest707-21snmpd08:56:323
174829975,1cyclictest707-21snmpd07:47:213
174829975,1cyclictest707-21snmpd07:38:463
174829975,1cyclictest707-21snmpd07:34:063
174829975,1cyclictest26599-21ntpq07:25:173
174829975,1cyclictest24389-21ssh10:08:013
174829975,1cyclictest13005-21ssh11:16:043
174829971,5cyclictest19817-21munin-node12:33:323
174829970,5cyclictest707-21snmpd12:21:413
174829970,5cyclictest16366-21kworker/u8:011:24:333
174829970,4cyclictest0-21swapper/310:39:503
174829970,2cyclictest0-21swapper/310:03:423
174759976,1cyclictest61650irq/122-eno111:55:222
174759976,1cyclictest61650irq/122-eno111:09:242
174759976,1cyclictest61650irq/122-eno109:35:362
174759976,1cyclictest61650irq/122-eno109:15:162
174759975,1cyclictest707-21snmpd12:33:082
174759975,1cyclictest707-21snmpd09:24:452
174759975,1cyclictest707-21snmpd09:00:032
174759975,1cyclictest707-21snmpd07:45:342
174759975,1cyclictest61650irq/122-eno112:20:132
174759975,1cyclictest61650irq/122-eno111:35:122
174759975,1cyclictest61650irq/122-eno110:30:132
174759975,1cyclictest61650irq/122-eno110:10:202
174759975,1cyclictest61650irq/122-eno109:50:172
174759975,1cyclictest61650irq/122-eno108:05:122
174759975,1cyclictest32128-21ssh11:40:232
174759974,1cyclictest548-21systemd-logind09:30:192
174759971,5cyclictest0-21swapper/208:53:412
174759971,1cyclictest0-21swapper/209:26:362
174759970,6cyclictest0-21swapper/210:15:502
174689976,0cyclictest21-21ksoftirqd/112:16:361
174689970,6cyclictest0-21swapper/111:35:011
174689970,5cyclictest0-21swapper/108:05:141
174689970,4cyclictest0-21swapper/110:58:481
174689970,1cyclictest0-21swapper/112:25:291
174689970,1cyclictest0-21swapper/109:05:151
174639976,1cyclictest9-21ksoftirqd/007:30:010
174639976,1cyclictest9-21ksoftirqd/007:11:330
174639976,1cyclictest22765-21ssh10:05:180
174639976,1cyclictest16889-21ssh12:04:230
174639975,1cyclictest9-21ksoftirqd/008:19:590
174639975,1cyclictest707-21snmpd11:07:190
174639975,1cyclictest707-21snmpd07:41:090
174639975,1cyclictest23263-21fschecks_time11:30:160
174639973,2cyclictest10111-21diskmemload12:12:270
174639972,3cyclictest10111-21diskmemload10:25:390
174639970,6cyclictest28923-21diskstats08:40:140
174639970,6cyclictest27836-21systemctl09:30:180
174639970,6cyclictest26831-21expr11:35:120
174639970,6cyclictest26040-21ssh12:15:150
174639970,6cyclictest23964-21ssh10:50:040
174639970,6cyclictest19003-21ssh09:20:140
174639970,6cyclictest15477-21ntp_states09:15:170
174639970,6cyclictest10112-21perf09:10:000
174639970,6cyclictest0-21swapper/012:21:070
174639970,6cyclictest0-21swapper/012:05:160
174639970,6cyclictest0-21swapper/010:55:000
174639970,4cyclictest707-21snmpd10:41:410
174639970,3cyclictest10111-21diskmemload11:20:200
174639970,1cyclictest9045-21ssh11:10:510
174639970,1cyclictest9008-21ssh11:54:310
174639970,1cyclictest4665-21ssh09:43:050
174639970,1cyclictest31362-21ssh10:16:000
174639970,1cyclictest12209-21ssh09:52:040
174639970,1cyclictest10934-21ssh11:15:090
174639970,1cyclictest0-21swapper/011:25:140
174639970,1cyclictest0-21swapper/010:35:130
174829965,1cyclictest9148-21ntpq09:05:173
174829965,1cyclictest707-21snmpd11:44:113
174829965,1cyclictest707-21snmpd08:36:253
174829965,1cyclictest707-21snmpd08:22:283
174829965,1cyclictest4252-21ssh10:24:403
174829965,1cyclictest4232-21ssh09:41:553
174829965,1cyclictest4194-21ssh11:46:583
174829965,1cyclictest353-21ssh09:37:023
174829965,1cyclictest28857-21ssh09:31:583
174829965,1cyclictest27872-21sensors11:35:193
174829965,1cyclictest27558-21ssh10:11:113
174829965,1cyclictest25295-21ssh11:32:473
174829965,1cyclictest19478-21ssh12:06:003
174829965,1cyclictest16184-21ssh09:15:383
174829965,1cyclictest11990-21ssh11:56:413
174829964,1cyclictest707-21snmpd11:51:553
174829964,1cyclictest707-21snmpd08:06:403
174829964,1cyclictest31839-21tail08:45:153
174829964,1cyclictest22109-21ssh10:45:483
174829964,1cyclictest20224-21ssh09:20:333
174829961,3cyclictest23058-21grep12:10:203
174829961,3cyclictest10111-21diskmemload09:25:133
174829961,2cyclictest0-21swapper/308:40:113
174829961,2cyclictest0-21swapper/308:30:093
174829960,3cyclictest0-21swapper/310:54:023
174829960,2cyclictest23084-21apt-get07:20:103
174829960,2cyclictest0-21swapper/312:15:123
174829960,2cyclictest0-21swapper/312:03:353
174759966,0cyclictest61650irq/122-eno112:05:132
174759966,0cyclictest61650irq/122-eno111:20:022
174759966,0cyclictest61650irq/122-eno110:35:012
174759966,0cyclictest61650irq/122-eno109:06:022
174759966,0cyclictest61650irq/122-eno108:27:532
174759966,0cyclictest61650irq/122-eno108:18:152
174759966,0cyclictest61650irq/122-eno107:53:262
174759966,0cyclictest28-21ksoftirqd/212:15:082
174759965,1cyclictest61650irq/122-eno110:45:122
174759965,1cyclictest61650irq/122-eno110:05:202
174759965,1cyclictest61650irq/122-eno108:45:562
174759965,1cyclictest61650irq/122-eno107:35:102
174759965,1cyclictest536-21ssh12:25:132
174759965,1cyclictest4679-21ssh10:25:132
174759965,1cyclictest14777-21ntpq12:00:162
174759964,1cyclictest707-21snmpd07:12:232
174759964,1cyclictest61650irq/122-eno110:50:172
174759964,1cyclictest28343-21fschecks_count07:30:142
174759962,3cyclictest14243-21apt-get08:10:122
174759962,2cyclictest28413-21apt-get08:40:112
174759962,1cyclictest32283-21diskstats11:00:122
174759961,3cyclictest0-21swapper/212:35:142
174759961,2cyclictest0-21swapper/211:45:092
174759960,5cyclictest0-21swapper/208:23:352
174759960,2cyclictest0-21swapper/208:30:102
174689961,3cyclictest0-21swapper/111:05:091
174689960,6cyclictest0-21swapper/111:25:161
174689960,6cyclictest0-21swapper/109:38:121
174689960,6cyclictest0-21swapper/108:59:291
174689960,6cyclictest0-21swapper/108:42:101
174689960,6cyclictest0-21swapper/108:30:111
174689960,5cyclictest0-21swapper/108:50:471
174689960,4cyclictest0-21swapper/110:11:011
174689960,2cyclictest0-21swapper/109:34:401
174689960,1cyclictest0-21swapper/111:55:011
174689960,1cyclictest0-21swapper/110:50:121
174639966,0cyclictest0-21swapper/008:50:130
174639965,1cyclictest9-21ksoftirqd/008:36:420
174639964,1cyclictest707-21snmpd08:46:130
174639962,2cyclictest240-21systemd-journal08:14:590
174639961,4cyclictest23681-21apt-get08:30:100
174639960,6cyclictest707-21snmpd07:56:500
174639960,6cyclictest0-21swapper/010:00:420
174639960,6cyclictest0-21swapper/008:56:130
174639960,5cyclictest8121-1kworker/u9:109:55:120
174639960,1cyclictest0-21swapper/010:10:100
174639960,1cyclictest0-21swapper/008:21:020
174639960,0cyclictest0-21swapper/009:00:140
174639960,0cyclictest0-21swapper/008:05:190
174639960,0cyclictest0-21swapper/008:00:030
174639960,0cyclictest0-21swapper/007:52:100
174639960,0cyclictest0-21swapper/007:20:490
174829954,1cyclictest707-21snmpd07:11:263
174829953,1cyclictest615-21grep07:40:133
174829953,1cyclictest5919-21tr09:00:123
174829953,1cyclictest16352-21latency_hist08:14:593
174829953,0cyclictest10111-21diskmemload12:35:593
174829952,1cyclictest10760-21grep08:00:193
174829951,2cyclictest4808-21apt-get07:50:103
174829951,2cyclictest17301-21fschecks_time08:15:153
174829950,1cyclictest0-21swapper/309:11:273
174759955,0cyclictest61650irq/122-eno107:20:142
174759953,1cyclictest0-21swapper/207:55:122
174759950,4cyclictest300-21cpuspeed_turbos07:40:122
174689955,0cyclictest0-21swapper/109:41:071
174689955,0cyclictest0-21swapper/109:15:051
174689955,0cyclictest0-21swapper/108:28:111
174689954,1cyclictest0-21swapper/107:20:501
174689953,1cyclictest0-21swapper/110:00:111
174689952,3cyclictest0-21swapper/109:20:191
174689952,1cyclictest0-21swapper/111:13:131
174689952,1cyclictest0-21swapper/110:30:131
174689952,1cyclictest0-21swapper/108:35:121
174689951,2cyclictest0-21swapper/110:45:101
174689951,1cyclictest0-21swapper/111:30:131
174689951,1cyclictest0-21swapper/107:15:011
174689950,5cyclictest0-21swapper/112:30:201
174689950,5cyclictest0-21swapper/112:10:381
174689950,5cyclictest0-21swapper/112:05:141
174689950,5cyclictest0-21swapper/111:48:151
174689950,5cyclictest0-21swapper/110:07:301
174689950,5cyclictest0-21swapper/109:49:551
174689950,5cyclictest0-21swapper/109:11:311
174689950,5cyclictest0-21swapper/108:23:091
174689950,5cyclictest0-21swapper/108:10:001
174689950,5cyclictest0-21swapper/107:41:561
174689950,4cyclictest0-21swapper/108:15:371
174689950,3cyclictest0-21swapper/112:35:481
174689950,3cyclictest0-21swapper/111:52:161
174689950,3cyclictest0-21swapper/110:29:061
174689950,3cyclictest0-21swapper/107:35:071
174689950,2cyclictest0-21swapper/110:20:161
174689950,2cyclictest0-21swapper/110:15:421
174689950,1cyclictest243282sleep109:25:421
174689950,0cyclictest0-21swapper/111:40:361
174639953,1cyclictest9-21ksoftirqd/007:45:110
174639951,3cyclictest19817-21munin-node07:15:000
174829944,0cyclictest22730-21sensors08:25:193
174829942,1cyclictest7759-21fschecks_count07:55:153
174689944,0cyclictest0-21swapper/112:22:431
174689944,0cyclictest0-21swapper/107:55:191
174689944,0cyclictest0-21swapper/107:11:451
174689942,1cyclictest4318-21taskset07:46:531
174689941,1cyclictest0-21swapper/110:40:311
174689940,3cyclictest0-21swapper/112:00:131
174689940,3cyclictest0-21swapper/111:20:091
174689940,3cyclictest0-21swapper/109:55:131
174689940,2cyclictest0-21swapper/111:00:101
174689940,2cyclictest0-21swapper/110:39:561
174689940,2cyclictest0-21swapper/107:50:101
174689940,1cyclictest0-21swapper/109:50:111
174689931,1cyclictest0-21swapper/109:00:101
174689931,1cyclictest0-21swapper/108:45:091
174689931,1cyclictest0-21swapper/107:30:111
174689930,2cyclictest0-21swapper/107:25:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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