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2026-03-17 - 09:48
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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 Tue Mar 17, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154282211178,21sleep20-21swapper/219:07:022
154412202164,24sleep00-21swapper/019:07:120
153972200161,25sleep30-21swapper/319:06:403
156342197145,41sleep10-21swapper/119:09:431
266142660,0sleep10-21swapper/121:30:381
69892650,0sleep10-21swapper/123:10:201
183302580,0sleep00-21swapper/022:45:110
102342550,1sleep08595-21diskmemload23:15:150
81532170,0sleep20-21swapper/222:30:202
62072160,0sleep20-21swapper/200:34:522
1573699112,4cyclictest3714-21perf20:59:590
1573799100,4cyclictest0-21swapper/120:40:111
1573699100,5cyclictest14645-21latency_hist20:15:000
157369990,6cyclictest0-21swapper/021:50:110
157479986,1cyclictest707-21snmpd23:21:273
157479986,1cyclictest707-21snmpd23:16:483
157479986,1cyclictest707-21snmpd22:34:263
157479986,1cyclictest707-21snmpd22:06:253
157479986,1cyclictest707-21snmpd21:57:403
157479986,1cyclictest707-21snmpd21:11:323
157479986,1cyclictest707-21snmpd20:38:503
157479986,1cyclictest707-21snmpd19:32:503
157479985,1cyclictest35-21ksoftirqd/321:49:593
157479982,4cyclictest0-21swapper/323:40:203
157479981,5cyclictest8595-21diskmemload00:15:033
157479981,5cyclictest561-21nscd00:21:213
157479980,6cyclictest8595-21diskmemload22:01:473
157479980,6cyclictest8595-21diskmemload21:34:293
157399988,0cyclictest0-21swapper/219:55:132
157399986,2cyclictest561-21nscd23:31:212
157399986,1cyclictest707-21snmpd20:08:422
157399986,1cyclictest61650irq/122-eno123:40:192
157399986,1cyclictest61650irq/122-eno123:25:532
157399986,1cyclictest61650irq/122-eno123:05:152
157399986,1cyclictest61650irq/122-eno122:55:002
157399986,1cyclictest61650irq/122-eno121:38:452
157399986,1cyclictest61650irq/122-eno100:29:592
157399985,1cyclictest61650irq/122-eno100:20:422
157399981,5cyclictest7890-21apt-get23:55:102
157399980,6cyclictest0-21swapper/223:50:122
157379982,5cyclictest21-21ksoftirqd/121:59:501
157379980,3cyclictest0-21swapper/123:49:591
157369987,1cyclictest9-21ksoftirqd/019:19:320
157369986,1cyclictest9-21ksoftirqd/021:19:210
157369986,1cyclictest9-21ksoftirqd/020:30:010
157369986,1cyclictest707-21snmpd23:51:020
157369986,1cyclictest707-21snmpd22:36:210
157369986,1cyclictest707-21snmpd20:40:310
157369983,5cyclictest30015-21latency_hist23:00:000
157369983,4cyclictest23970-21sh22:50:200
157369982,3cyclictest28240-21perf19:35:010
157369982,1cyclictest18936-21ssh22:04:060
157369981,6cyclictest11792-21apt-get00:00:110
157369980,8cyclictest0-21swapper/022:16:340
157369980,1cyclictest32199-21ssh23:44:390
157369980,1cyclictest25793-21ssh22:11:530
157479976,1cyclictest35-21ksoftirqd/319:40:013
157479975,1cyclictest707-21snmpd22:51:153
157479975,1cyclictest707-21snmpd22:15:593
157479975,1cyclictest707-21snmpd20:26:043
157479975,1cyclictest707-21snmpd19:50:503
157479975,1cyclictest707-21snmpd19:23:183
157479975,1cyclictest707-21snmpd19:16:193
157479975,1cyclictest707-21snmpd00:26:213
157479975,1cyclictest5018-21ssh00:31:453
157479975,1cyclictest2871-21ssh23:47:383
157479975,1cyclictest2840-21ntpq23:05:173
157479973,4cyclictest18099-21munin-node00:39:293
157479972,1cyclictest10466-21ssh23:57:233
157479971,5cyclictest8595-21diskmemload22:10:593
157479970,6cyclictest8595-21diskmemload21:43:333
157479970,4cyclictest0-21swapper/323:28:043
157399976,1cyclictest61650irq/122-eno123:11:522
157399976,1cyclictest61650irq/122-eno122:17:342
157399976,1cyclictest61650irq/122-eno122:03:392
157399976,1cyclictest61650irq/122-eno121:25:122
157399976,1cyclictest61650irq/122-eno121:20:112
157399976,1cyclictest61650irq/122-eno119:22:382
157399976,1cyclictest61650irq/122-eno100:13:142
157399976,0cyclictest61650irq/122-eno123:20:112
157399976,0cyclictest61650irq/122-eno121:10:142
157399976,0cyclictest61650irq/122-eno119:40:132
157399976,0cyclictest61650irq/122-eno100:35:142
157399976,0cyclictest61650irq/122-eno100:15:122
157399975,1cyclictest707-21snmpd20:44:472
157399975,1cyclictest707-21snmpd20:25:392
157399975,1cyclictest61650irq/122-eno123:00:122
157399975,1cyclictest61650irq/122-eno123:00:002
157399975,1cyclictest61650irq/122-eno122:40:132
157399975,1cyclictest61650irq/122-eno100:05:152
157399973,3cyclictest23716-21/usr/sbin/munin19:25:172
157399973,2cyclictest240-21systemd-journal21:09:072
157399971,5cyclictest23425-21apt-get22:10:112
157399970,1cyclictest0-21swapper/219:53:302
157399970,1cyclictest0-21swapper/219:45:352
157399970,1cyclictest0-21swapper/219:10:122
157399970,0cyclictest0-21swapper/220:10:292
157379971,6cyclictest0-21swapper/122:48:151
157379971,6cyclictest0-21swapper/119:42:301
157379971,1cyclictest0-21swapper/100:25:541
157379970,4cyclictest0-21swapper/121:50:341
157369976,1cyclictest707-21snmpd22:22:280
157369976,1cyclictest1231-21ssh23:04:380
157369975,1cyclictest707-21snmpd20:35:550
157369975,1cyclictest707-21snmpd20:17:000
157369975,1cyclictest707-21snmpd20:04:160
157369975,1cyclictest6002-21chrt21:45:350
157369975,1cyclictest20773-21apt-get21:25:100
157369975,1cyclictest1055-21ls19:45:120
157369973,3cyclictest7846-21ntp_kernel_pll_22:30:180
157369972,4cyclictest29628-21sed19:35:190
157369970,6cyclictest8595-21diskmemload23:05:180
157369970,6cyclictest5585-1kworker/u9:022:40:170
157369970,6cyclictest466-21munin-run19:44:590
157369970,6cyclictest29898-21pmu-power21:35:190
157369970,6cyclictest27026-21ssh21:31:380
157369970,6cyclictest17526-21cpuspeed_turbos20:20:130
157369970,6cyclictest1483-21sed20:55:000
157369970,6cyclictest11256-21ssh23:59:260
157369970,6cyclictest0-21swapper/023:35:430
157369970,6cyclictest0-21swapper/021:55:200
157369970,6cyclictest0-21swapper/021:20:130
157369970,6cyclictest0-21swapper/000:35:140
157369970,5cyclictest2504-21gpgv00:30:000
157369970,1cyclictest8595-21diskmemload00:25:260
157369970,1cyclictest32581-21ssh23:45:040
157369970,1cyclictest15610-21apt-get00:05:100
157369970,1cyclictest0-21swapper/023:10:140
157369970,1cyclictest0-21swapper/022:25:130
157479965,1cyclictest7551-21ssh23:10:563
157479965,1cyclictest6234-21ssh23:51:233
157479965,1cyclictest5198-21ssh22:26:543
157479965,1cyclictest30414-21ssh21:35:223
157479965,1cyclictest22695-21ssh21:25:423
157479965,1cyclictest20016-21ssh00:10:143
157479965,1cyclictest19312-21ssh21:22:153
157479965,1cyclictest18139-21ssh00:07:133
157479965,1cyclictest16244-21ssh22:40:313
157479965,1cyclictest15009-21ssh21:16:263
157479965,1cyclictest13980-21ssh00:01:233
157479964,1cyclictest4481-21grep21:00:143
157479964,1cyclictest31402-21telnet22:20:113
157479964,1cyclictest29031-21idleruntime-cro20:44:593
157479964,1cyclictest26849-21ssh23:35:493
157479964,1cyclictest17001-21turbostat.cron20:20:003
157479963,2cyclictest8595-21diskmemload23:02:393
157479961,3cyclictest29249-21apt-get20:45:113
157479961,2cyclictest18379-21aten_r1power_vo22:45:123
157479960,4cyclictest0-21swapper/323:30:123
157479960,2cyclictest0-21swapper/322:56:003
157479960,2cyclictest0-21swapper/322:36:193
157479960,1cyclictest240-21systemd-journal20:04:543
157399966,0cyclictest61650irq/122-eno122:45:162
157399966,0cyclictest61650irq/122-eno122:25:122
157399966,0cyclictest61650irq/122-eno122:20:112
157399966,0cyclictest61650irq/122-eno121:55:092
157399966,0cyclictest61650irq/122-eno121:40:152
157399966,0cyclictest61650irq/122-eno121:30:112
157399966,0cyclictest61650irq/122-eno121:15:372
157399966,0cyclictest61650irq/122-eno120:55:112
157399966,0cyclictest61650irq/122-eno120:45:142
157399966,0cyclictest61650irq/122-eno120:20:162
157399966,0cyclictest61650irq/122-eno120:04:462
157399966,0cyclictest61650irq/122-eno119:30:362
157399966,0cyclictest61650irq/122-eno100:00:142
157399965,1cyclictest61650irq/122-eno123:35:142
157399965,1cyclictest61650irq/122-eno123:15:142
157399965,1cyclictest61650irq/122-eno122:05:322
157399965,1cyclictest61650irq/122-eno121:53:032
157399965,1cyclictest61650irq/122-eno120:35:132
157399964,1cyclictest707-21snmpd21:45:012
157399964,1cyclictest61650irq/122-eno120:50:132
157399964,1cyclictest61650irq/122-eno120:30:152
157399964,1cyclictest32574-21ssh23:45:032
157399960,6cyclictest0-21swapper/219:35:262
157399960,4cyclictest20468-21/usr/sbin/munin19:15:202
157399960,2cyclictest0-21swapper/222:35:122
157399960,1cyclictest0-21swapper/221:00:342
157379965,1cyclictest0-21swapper/119:46:061
157379965,1cyclictest0-21swapper/119:11:101
157379961,2cyclictest0-21swapper/123:50:111
157379960,6cyclictest0-21swapper/123:41:261
157379960,6cyclictest0-21swapper/121:49:091
157379960,6cyclictest0-21swapper/121:43:221
157379960,6cyclictest0-21swapper/121:01:381
157379960,6cyclictest0-21swapper/120:33:381
157379960,5cyclictest0-21swapper/122:35:171
157379960,5cyclictest0-21swapper/119:36:111
157379960,5cyclictest0-21swapper/119:15:101
157379960,5cyclictest0-21swapper/100:00:161
157379960,4cyclictest0-21swapper/123:05:421
157379960,4cyclictest0-21swapper/122:55:011
157379960,4cyclictest0-21swapper/121:27:221
157379960,3cyclictest0-21swapper/121:17:001
157379960,1cyclictest0-21swapper/121:10:131
157379960,1cyclictest0-21swapper/120:35:161
157379960,1cyclictest0-21swapper/100:34:331
157379960,1cyclictest0-21swapper/100:05:081
157369965,1cyclictest21364-21cstates23:30:130
157369965,1cyclictest16844-1kworker/u9:223:25:170
157369964,1cyclictest9-21ksoftirqd/020:35:000
157369964,1cyclictest27758-21ssh00:20:140
157369964,1cyclictest21455-21aten2.4-expect19:20:110
157369964,1cyclictest18470-21sed19:15:010
157369962,1cyclictest0-21swapper/020:45:120
157369960,6cyclictest11070-21irqstats20:05:140
157369960,6cyclictest0-21swapper/023:20:070
157369960,6cyclictest0-21swapper/021:07:530
157369960,2cyclictest6039-21perf21:05:000
157369960,1cyclictest30668-1kworker/u9:221:40:120
157369960,1cyclictest0-21swapper/021:10:110
157369960,1cyclictest0-21swapper/000:10:090
157369960,0cyclictest20686-21strings22:05:150
157369960,0cyclictest0-21swapper/019:57:260
157369960,0cyclictest0-21swapper/019:27:080
157369960,0cyclictest0-21swapper/000:15:310
157479954,1cyclictest8218-21sshd21:05:313
157479954,1cyclictest707-21snmpd20:52:313
157479954,1cyclictest707-21snmpd19:13:103
157479954,1cyclictest25787-21sshd19:29:313
157479953,1cyclictest12278-21latency_hist20:10:013
157479952,1cyclictest0-21swapper/319:40:213
157479951,2cyclictest7946-21apt-get21:50:103
157479950,5cyclictest0-21swapper/320:30:373
157479950,5cyclictest0-21swapper/319:59:563
157399955,0cyclictest61650irq/122-eno120:17:012
157379955,0cyclictest0-21swapper/123:25:311
157379954,0cyclictest0-21swapper/123:30:121
157379952,2cyclictest0-21swapper/122:15:001
157379951,4cyclictest0-21swapper/122:53:041
157379951,4cyclictest0-21swapper/122:41:521
157379951,4cyclictest0-21swapper/121:23:311
157379951,1cyclictest0-21swapper/122:10:101
157379950,5cyclictest0-21swapper/123:55:111
157379950,5cyclictest0-21swapper/123:15:271
157379950,5cyclictest0-21swapper/122:04:591
157379950,5cyclictest0-21swapper/120:47:041
157379950,5cyclictest0-21swapper/120:04:271
157379950,4cyclictest0-21swapper/100:21:451
157379950,3cyclictest0-21swapper/123:35:131
157379950,3cyclictest0-21swapper/100:10:111
157379950,2cyclictest0-21swapper/122:30:001
157379950,0cyclictest0-21swapper/122:31:551
157379950,0cyclictest0-21swapper/100:36:241
157369950,4cyclictest0-21swapper/019:50:120
157479942,1cyclictest693-21runrttasks20:59:583
157479942,1cyclictest693-21runrttasks19:45:203
157479940,2cyclictest13043-21awk20:10:143
157479940,1cyclictest240-21systemd-journal20:20:003
157379944,0cyclictest0-21swapper/120:55:321
157379944,0cyclictest0-21swapper/119:20:181
157379943,1cyclictest215332sleep122:05:481
157379943,1cyclictest19140-21chrt20:22:061
157379942,1cyclictest15150-21chrt23:20:321
157379941,1cyclictest0-21swapper/122:24:361
157379940,3cyclictest0-21swapper/123:02:081
157379940,3cyclictest0-21swapper/100:15:091
157379940,2cyclictest0-21swapper/121:35:521
157379940,2cyclictest0-21swapper/119:50:201
157379940,1cyclictest11952-21chrt20:05:531
157379940,1cyclictest0-21swapper/120:30:001
157379940,1cyclictest0-21swapper/119:59:591
157379940,0cyclictest0-21swapper/120:19:531
157379940,0cyclictest0-21swapper/119:30:201
157379940,0cyclictest0-21swapper/119:25:191
157379930,2cyclictest0-21swapper/120:50:111
157379930,0cyclictest0-21swapper/121:05:011
157379930,0cyclictest0-21swapper/120:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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