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2026-04-21 - 19:36
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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 all highest latencies:
System rack1slot1.osadl.org (updated Tue Apr 21, 2026 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192092218153,52sleep00-21swapper/007:07:030
193002202163,25sleep20-21swapper/207:08:142
192292200160,27sleep30-21swapper/307:07:193
191182197160,24sleep10-21swapper/107:05:521
252482820,0sleep10-21swapper/109:25:131
148982180,0sleep10-21swapper/110:35:211
1951999140,1cyclictest0-21swapper/209:25:112
1951499140,13cyclictest0-21swapper/107:15:121
19523991311,1cyclictest35-21ksoftirqd/307:30:013
19510991311,1cyclictest9-21ksoftirqd/010:00:000
1951999120,11cyclictest9039-21ps09:45:182
1951099119,1cyclictest9-21ksoftirqd/010:35:000
1951099112,4cyclictest18453-21perf08:15:000
19510991110,1cyclictest9-21ksoftirqd/008:55:000
75172100,0sleep20-21swapper/211:10:092
1951999106,1cyclictest28-21ksoftirqd/207:25:002
1951999102,2cyclictest24616-21sh12:15:112
1951099102,4cyclictest22809-21latency_hist10:05:000
195239992,6cyclictest23038-21/usr/sbin/munin10:05:213
195199998,1cyclictest28-21ksoftirqd/207:30:012
195199990,5cyclictest0-21swapper/208:10:112
195109991,4cyclictest5385-21cat11:49:590
195109991,4cyclictest24542-21cat10:49:590
195109990,4cyclictest16081-21perf09:14:590
195109990,4cyclictest11097-21perf11:15:010
195239986,1cyclictest17998-21snmpd11:42:293
195239986,1cyclictest17998-21snmpd09:52:173
195239986,1cyclictest17998-21snmpd08:47:323
195239986,1cyclictest17998-21snmpd07:45:433
195239983,3cyclictest240-21systemd-journal07:55:003
195239981,3cyclictest0-21swapper/310:10:123
195239980,5cyclictest17998-21snmpd12:18:513
195239980,4cyclictest5801-21/usr/sbin/munin10:25:183
195199987,1cyclictest28-21ksoftirqd/209:30:162
195199986,1cyclictest61650irq/122-eno110:35:222
195199986,1cyclictest17998-21snmpd11:31:052
195199986,1cyclictest17998-21snmpd10:16:142
195199986,1cyclictest17998-21snmpd09:52:382
195199986,1cyclictest17998-21snmpd09:37:132
195199986,1cyclictest17998-21snmpd08:29:532
195199985,2cyclictest1895-21sh07:40:002
195199984,2cyclictest240-21systemd-journal12:15:002
195109987,1cyclictest9-21ksoftirqd/010:58:520
195109987,1cyclictest9-21ksoftirqd/009:40:000
195109987,0cyclictest9-21ksoftirqd/011:05:140
195109986,1cyclictest17998-21snmpd08:27:080
195109986,1cyclictest17998-21snmpd08:21:410
195109985,1cyclictest17998-21snmpd12:31:030
195109984,3cyclictest16861-21cron10:40:000
195109982,5cyclictest11397-21date08:00:000
195109981,6cyclictest21877-21munin-node10:24:020
195109981,5cyclictest24255-21wc07:15:210
195109981,3cyclictest26584-21perf10:10:000
195109981,1cyclictest8958-21wc09:00:200
195109980,7cyclictest31108-21ssh12:22:490
195109980,1cyclictest7631-21ssh09:45:020
195239976,1cyclictest3679-21ssh11:45:283
195239976,1cyclictest23609-21cat11:30:153
195239976,1cyclictest17998-21snmpd12:32:423
195239976,1cyclictest17998-21snmpd07:59:283
195239975,1cyclictest17998-21snmpd12:00:293
195239975,1cyclictest17998-21snmpd11:25:313
195239975,1cyclictest17998-21snmpd09:55:233
195239975,1cyclictest17998-21snmpd09:19:533
195239975,1cyclictest17998-21snmpd09:13:183
195239975,1cyclictest17998-21snmpd08:26:353
195239975,1cyclictest17998-21snmpd08:09:553
195239975,1cyclictest17998-21snmpd07:12:183
195239972,4cyclictest21040-21apt-get08:20:103
195239972,2cyclictest28632-21/usr/sbin/munin10:55:133
195239972,1cyclictest26202-21apt-get11:35:013
195239971,5cyclictest4287-21perf07:45:003
195239971,5cyclictest0-21swapper/309:41:253
195239970,7cyclictest24948-21kworker/u8:111:23:553
195239970,2cyclictest570-21nscd11:05:183
195239970,2cyclictest32473-21apt-get09:35:103
195199976,1cyclictest61650irq/122-eno112:00:192
195199976,1cyclictest61650irq/122-eno111:41:032
195199976,1cyclictest61650irq/122-eno111:35:122
195199976,1cyclictest61650irq/122-eno111:23:502
195199976,1cyclictest61650irq/122-eno111:04:412
195199976,1cyclictest61650irq/122-eno110:58:292
195199976,1cyclictest61650irq/122-eno110:24:252
195199976,1cyclictest61650irq/122-eno109:55:172
195199976,1cyclictest61650irq/122-eno109:16:032
195199976,0cyclictest61650irq/122-eno111:53:382
195199975,1cyclictest17998-21snmpd12:25:272
195199975,1cyclictest17998-21snmpd09:13:512
195199974,1cyclictest240-21systemd-journal08:39:592
195199970,6cyclictest21870-21wc08:20:142
195199970,4cyclictest0-21swapper/212:30:092
195199970,3cyclictest0-21swapper/210:00:102
195199970,2cyclictest0-21swapper/208:05:112
195149971,2cyclictest0-21swapper/108:00:151
195149971,1cyclictest0-21swapper/107:44:101
195149970,7cyclictest0-21swapper/107:27:571
195149970,6cyclictest0-21swapper/111:30:171
195149970,6cyclictest0-21swapper/111:16:491
195149970,6cyclictest0-21swapper/110:43:061
195149970,6cyclictest0-21swapper/108:37:231
195149970,1cyclictest0-21swapper/109:22:241
195109976,1cyclictest930-21ssh11:43:200
195109976,1cyclictest9-21ksoftirqd/008:40:000
195109976,1cyclictest25556-1kworker/u9:209:20:120
195109976,1cyclictest17998-21snmpd12:06:300
195109976,1cyclictest17998-21snmpd09:25:220
195109976,1cyclictest17998-21snmpd08:01:550
195109976,1cyclictest17998-21snmpd07:12:060
195109976,1cyclictest16295-21ssh09:15:070
195109975,1cyclictest21541-21perl12:10:140
195109975,1cyclictest17998-21snmpd08:19:170
195109973,2cyclictest240-21systemd-journal08:35:000
195109971,5cyclictest9452-21/usr/sbin/munin11:55:210
195109970,6cyclictest6866-21taskset07:50:110
195109970,6cyclictest28481-21ssh09:30:090
195109970,6cyclictest22695-21ssh11:30:080
195109970,6cyclictest2206-21ssh12:27:070
195109970,6cyclictest22046-21ssh11:29:000
195109970,6cyclictest0-21swapper/012:35:150
195109970,6cyclictest0-21swapper/011:50:140
195109970,6cyclictest0-21swapper/009:50:010
195109970,3cyclictest2617-21sed08:50:000
195109970,1cyclictest30626-21ssh10:15:100
195109970,1cyclictest28703-21ssh10:10:330
195109970,1cyclictest12210-21diskmemload11:19:430
195109970,1cyclictest12210-21diskmemload11:01:070
195109970,1cyclictest0-21swapper/007:25:110
12856270,0sleep30-21swapper/310:34:253
11728270,0sleep10-21swapper/111:56:501
195239965,1cyclictest9336-21ssh11:10:233
195239965,1cyclictest9330-21ssh12:35:553
195239965,1cyclictest31839-21ssh12:24:493
195239965,1cyclictest31780-21ssh10:15:163
195239965,1cyclictest30591-21ssh09:31:063
195239965,1cyclictest23586-21ssh10:47:353
195239965,1cyclictest22497-21sshd10:04:203
195239965,1cyclictest22145-21ssh09:20:213
195239965,1cyclictest22016-21ntpq12:10:173
195239965,1cyclictest19403-21ssh12:07:013
195239965,1cyclictest19276-21ssh10:41:123
195239965,1cyclictest1811-21ssh11:00:333
195239964,1cyclictest17998-21snmpd09:02:513
195239963,1cyclictest240-21systemd-journal09:05:013
195239963,1cyclictest240-21systemd-journal08:35:003
195239961,4cyclictest12210-21diskmemload11:15:193
195239961,2cyclictest0-21swapper/311:52:323
195239960,5cyclictest0-21swapper/312:25:153
195239960,3cyclictest0-21swapper/311:55:173
195239960,3cyclictest0-21swapper/310:38:463
195239960,3cyclictest0-21swapper/309:49:043
195239960,2cyclictest0-21swapper/310:51:293
195239960,2cyclictest0-21swapper/309:25:103
195199966,0cyclictest61650irq/122-eno112:20:202
195199966,0cyclictest61650irq/122-eno111:55:422
195199966,0cyclictest61650irq/122-eno111:25:162
195199966,0cyclictest61650irq/122-eno111:15:142
195199966,0cyclictest61650irq/122-eno110:50:012
195199966,0cyclictest61650irq/122-eno110:45:192
195199966,0cyclictest61650irq/122-eno110:30:032
195199966,0cyclictest61650irq/122-eno110:26:082
195199966,0cyclictest61650irq/122-eno110:05:472
195199966,0cyclictest61650irq/122-eno109:40:442
195199966,0cyclictest61650irq/122-eno108:30:132
195199966,0cyclictest61650irq/122-eno107:50:212
195199966,0cyclictest61650irq/122-eno107:44:422
195199966,0cyclictest61650irq/122-eno107:20:002
195199966,0cyclictest61650irq/122-eno107:10:212
195199965,1cyclictest61650irq/122-eno112:35:132
195199965,1cyclictest61650irq/122-eno110:40:132
195199965,1cyclictest61650irq/122-eno110:10:052
195199965,1cyclictest61650irq/122-eno109:05:112
195199965,1cyclictest61650irq/122-eno108:40:152
195199965,1cyclictest61650irq/122-eno108:05:002
195199965,1cyclictest17998-21snmpd09:00:482
195199965,0cyclictest61650irq/122-eno109:20:142
195199964,1cyclictest61650irq/122-eno108:50:142
195199964,1cyclictest17795-21gltestperf12:05:152
195199960,5cyclictest0-21swapper/208:15:162
195199960,3cyclictest3764-21apt-get11:05:122
195199960,3cyclictest2365-21diskstats11:45:142
195149965,1cyclictest0-21swapper/108:05:141
195149961,4cyclictest0-21swapper/110:45:131
195149960,6cyclictest0-21swapper/112:37:341
195149960,6cyclictest0-21swapper/111:01:401
195149960,6cyclictest0-21swapper/109:49:381
195149960,6cyclictest0-21swapper/109:41:451
195149960,6cyclictest0-21swapper/109:33:151
195149960,6cyclictest0-21swapper/109:00:141
195149960,6cyclictest0-21swapper/108:29:071
195149960,6cyclictest0-21swapper/107:12:541
195149960,5cyclictest0-21swapper/111:47:471
195149960,5cyclictest0-21swapper/109:17:421
195149960,5cyclictest0-21swapper/108:50:511
195149960,3cyclictest0-21swapper/111:24:331
195149960,3cyclictest0-21swapper/110:05:101
195149960,2cyclictest0-21swapper/110:50:181
195149960,1cyclictest0-21swapper/109:11:071
195149960,1cyclictest0-21swapper/108:40:121
195149960,0cyclictest0-21swapper/111:50:511
195109966,0cyclictest4641-1kworker/u9:010:25:030
195109965,1cyclictest9-21ksoftirqd/007:40:140
195109965,1cyclictest26568-21vmstat10:50:220
195109962,3cyclictest3903-21ssh09:40:100
195109961,5cyclictest17998-21snmpd10:40:050
195109960,6cyclictest0-21swapper/007:48:050
195109960,5cyclictest6512sleep007:35:150
195109960,5cyclictest561-21nscd08:40:120
195109960,5cyclictest0-21swapper/011:20:120
195109960,3cyclictest0-21swapper/012:15:200
195109960,0cyclictest12210-21diskmemload12:00:010
195109960,0cyclictest0-21swapper/011:35:050
195109960,0cyclictest0-21swapper/007:20:390
195239954,1cyclictest35-21ksoftirqd/307:24:053
195239954,1cyclictest17998-21snmpd08:52:213
195239954,1cyclictest17998-21snmpd08:43:083
195239953,1cyclictest23842-21tail07:15:173
195239953,1cyclictest17998-21snmpd08:13:523
195239953,1cyclictest12638-21ls08:00:173
195239951,1cyclictest693-21runrttasks07:39:053
195239950,2cyclictest0-21swapper/308:35:153
195239950,1cyclictest0-21swapper/310:20:203
195199955,0cyclictest61650irq/122-eno108:55:112
195199955,0cyclictest0-21swapper/208:45:252
195199954,1cyclictest5669-21ntpq07:45:182
195199951,1cyclictest0-21swapper/207:55:112
195199950,4cyclictest0-21swapper/207:30:132
195149955,0cyclictest0-21swapper/110:56:071
195149955,0cyclictest0-21swapper/109:50:541
195149953,1cyclictest0-21swapper/107:35:111
195149952,3cyclictest0-21swapper/112:12:431
195149951,2cyclictest0-21swapper/110:25:121
195149950,5cyclictest0-21swapper/112:33:571
195149950,5cyclictest0-21swapper/112:26:211
195149950,5cyclictest0-21swapper/111:27:571
195149950,5cyclictest0-21swapper/108:31:141
195149950,5cyclictest0-21swapper/108:18:021
195149950,5cyclictest0-21swapper/107:55:191
195149950,5cyclictest0-21swapper/107:34:541
195149950,4cyclictest0-21swapper/111:35:231
195149950,4cyclictest0-21swapper/110:20:151
195149950,4cyclictest0-21swapper/110:13:261
195149950,3cyclictest0-21swapper/109:57:171
195149950,2cyclictest0-21swapper/112:05:261
195149950,2cyclictest0-21swapper/111:10:161
195149950,2cyclictest0-21swapper/111:05:191
195149950,2cyclictest0-21swapper/110:30:201
195149950,1cyclictest0-21swapper/110:15:401
195149950,1cyclictest0-21swapper/107:20:121
195109954,1cyclictest9-21ksoftirqd/008:05:230
195109953,1cyclictest5984-21cut08:55:150
195109950,4cyclictest29853-21/usr/sbin/munin07:30:140
195109950,4cyclictest10334-21cut09:05:130
195239943,1cyclictest30007-21aten2.4-expect07:30:123
195239942,1cyclictest19476-21hwlatdetect08:15:153
195239942,0cyclictest0-21swapper/308:55:003
195149942,1cyclictest0-21swapper/109:35:091
195149941,2cyclictest0-21swapper/108:10:101
195149940,3cyclictest0-21swapper/112:16:351
195149940,3cyclictest0-21swapper/112:00:361
195149940,2cyclictest0-21swapper/112:20:181
195149940,2cyclictest0-21swapper/111:40:101
195149940,1cyclictest0-21swapper/110:00:131
195149940,1cyclictest0-21swapper/108:55:141
195149940,0cyclictest0-21swapper/109:06:501
195149940,0cyclictest0-21swapper/108:47:151
195149930,3cyclictest0-21swapper/108:20:031
195149930,2cyclictest0-21swapper/107:50:101
195149930,1cyclictest0-21swapper/107:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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