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2026-04-20 - 08:14
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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 Mon Apr 20, 2026 00:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
254002211172,26sleep10-21swapper/119:06:281
256452209147,20sleep00-21swapper/019:09:400
235582201162,26sleep30-21swapper/319:05:043
254632198161,24sleep20-21swapper/219:07:182
118722830,0sleep10-21swapper/100:30:201
3892750,1sleep0391-21proc_pri22:50:190
25783991513,1cyclictest28-21ksoftirqd/222:00:002
23802150,0sleep20-21swapper/222:54:222
25766991412,1cyclictest9-21ksoftirqd/022:50:000
214642140,0sleep00-21swapper/021:53:470
25766991311,1cyclictest9-21ksoftirqd/022:00:000
25766991210,1cyclictest9-21ksoftirqd/000:35:140
2578399119,1cyclictest28-21ksoftirqd/219:35:012
2578399110,11cyclictest0-21swapper/222:28:042
2576699119,1cyclictest9-21ksoftirqd/000:20:000
2576699119,1cyclictest10113-21dump-pmu-power00:29:590
25766991110,1cyclictest9-21ksoftirqd/023:20:140
25766991110,1cyclictest9-21ksoftirqd/020:25:010
2579199108,1cyclictest35-21ksoftirqd/320:40:003
2579199108,1cyclictest15655-21/usr/sbin/munin19:55:173
2578399109,1cyclictest28-21ksoftirqd/220:59:592
2578399109,1cyclictest28-21ksoftirqd/200:25:002
2578399108,1cyclictest28-21ksoftirqd/222:20:012
2576699109,1cyclictest9-21ksoftirqd/023:10:010
2576699109,1cyclictest9-21ksoftirqd/022:30:160
2576699109,1cyclictest9-21ksoftirqd/021:15:000
2576699109,1cyclictest9-21ksoftirqd/020:54:590
2576699108,1cyclictest9-21ksoftirqd/021:10:000
29902290,0sleep10-21swapper/100:11:441
257919997,1cyclictest35-21ksoftirqd/319:50:003
257919990,7cyclictest0-21swapper/319:20:123
257919990,2cyclictest0-21swapper/323:40:113
257839999,0cyclictest28-21ksoftirqd/222:20:182
257839998,1cyclictest28-21ksoftirqd/223:20:192
257839998,1cyclictest28-21ksoftirqd/221:45:002
257839998,1cyclictest28-21ksoftirqd/219:50:002
257839997,1cyclictest28-21ksoftirqd/220:00:002
257669998,1cyclictest9-21ksoftirqd/022:55:110
257669998,1cyclictest9-21ksoftirqd/021:30:130
257669998,1cyclictest9-21ksoftirqd/020:05:000
257669998,1cyclictest9-21ksoftirqd/019:15:010
257669998,0cyclictest9-21ksoftirqd/023:55:010
257669998,0cyclictest9-21ksoftirqd/023:55:000
257669997,1cyclictest9-21ksoftirqd/023:19:590
257669997,1cyclictest9-21ksoftirqd/022:15:140
257669990,4cyclictest0-21swapper/023:54:230
30201280,0sleep20-21swapper/221:22:592
257919986,1cyclictest35-21ksoftirqd/319:55:003
257919986,1cyclictest17998-21snmpd22:21:213
257919986,1cyclictest17998-21snmpd21:21:393
257919986,1cyclictest17998-21snmpd21:01:423
257919986,1cyclictest17998-21snmpd20:56:183
257919986,1cyclictest17998-21snmpd19:11:543
257919980,4cyclictest0-21swapper/321:35:143
257839988,0cyclictest28-21ksoftirqd/219:15:012
257839988,0cyclictest28-21ksoftirqd/200:10:212
257839988,0cyclictest0-21swapper/222:45:392
257839986,1cyclictest61650irq/122-eno121:25:192
257839986,1cyclictest28-21ksoftirqd/220:40:002
257839986,1cyclictest28-21ksoftirqd/220:20:132
257839986,1cyclictest28-21ksoftirqd/220:05:012
257839986,1cyclictest28-21ksoftirqd/219:45:002
257839986,1cyclictest26993-21missed_timers19:10:162
257839986,1cyclictest17998-21snmpd22:30:212
257839984,3cyclictest693-21runrttasks22:56:092
257839981,7cyclictest61650irq/122-eno123:50:502
257839980,7cyclictest7946-21kworker/2:221:34:592
257839980,5cyclictest0-21swapper/223:15:102
257759981,1cyclictest0-21swapper/122:13:561
257759980,5cyclictest0-21swapper/121:04:331
257759980,4cyclictest0-21swapper/122:05:111
257669987,1cyclictest9-21ksoftirqd/023:10:140
257669987,1cyclictest9-21ksoftirqd/020:45:000
257669987,1cyclictest9-21ksoftirqd/020:10:000
257669987,1cyclictest12991-21ssh21:41:530
257669986,1cyclictest9-21ksoftirqd/022:40:000
257669986,1cyclictest9-21ksoftirqd/022:25:130
257669986,1cyclictest9-21ksoftirqd/022:10:120
257669986,1cyclictest9-21ksoftirqd/022:00:130
257669986,1cyclictest9-21ksoftirqd/019:35:010
257669986,1cyclictest9-21ksoftirqd/019:20:180
257669986,1cyclictest9-21ksoftirqd/019:10:110
257669986,1cyclictest1755-21ssh23:35:160
257669985,1cyclictest9-21ksoftirqd/019:55:000
257669985,1cyclictest240-21systemd-journal23:50:000
257669980,8cyclictest21470-21strings20:05:170
257669980,7cyclictest22337-21ssh00:01:490
257669980,6cyclictest19224-21diskmemload00:14:240
257669980,1cyclictest14294-21munin-run20:59:590
257919976,1cyclictest8342-21cat20:45:163
257919976,1cyclictest28761-21cat20:20:183
257919976,1cyclictest17998-21snmpd23:15:253
257919976,1cyclictest17998-21snmpd22:33:533
257919976,1cyclictest17998-21snmpd21:29:493
257919976,1cyclictest17998-21snmpd19:29:483
257919976,1cyclictest17998-21snmpd00:17:173
257919975,1cyclictest4135-21ssh22:13:323
257919975,1cyclictest17998-21snmpd22:55:093
257919975,1cyclictest17998-21snmpd22:41:213
257919975,1cyclictest17998-21snmpd22:28:053
257919975,1cyclictest17998-21snmpd20:41:243
257919975,1cyclictest17998-21snmpd20:25:303
257919975,1cyclictest17998-21snmpd20:06:443
257919973,3cyclictest18032-21apt-get20:00:113
257919973,1cyclictest35-21ksoftirqd/300:33:043
257919972,3cyclictest20046-21/usr/sbin/munin21:10:153
257919970,6cyclictest19224-21diskmemload21:52:483
257919970,4cyclictest0-21swapper/321:46:083
257919970,4cyclictest0-21swapper/321:40:113
257919970,3cyclictest0-21swapper/300:25:583
257919970,1cyclictest0-21swapper/323:53:443
257919970,1cyclictest0-21swapper/322:04:343
257919970,0cyclictest0-21swapper/322:37:253
257919970,0cyclictest0-21swapper/300:21:183
257839976,1cyclictest61650irq/122-eno123:28:142
257839976,1cyclictest61650irq/122-eno122:40:152
257839976,1cyclictest61650irq/122-eno120:40:162
257839976,1cyclictest61650irq/122-eno100:04:122
257839976,1cyclictest28-21ksoftirqd/222:00:152
257839976,1cyclictest28-21ksoftirqd/220:50:002
257839976,1cyclictest28-21ksoftirqd/220:10:142
257839976,1cyclictest10029-21sh21:39:112
257839976,0cyclictest61650irq/122-eno121:45:442
257839975,1cyclictest9327-21cat23:45:162
257839975,1cyclictest61650irq/122-eno122:05:122
257839975,1cyclictest28-21ksoftirqd/221:20:012
257839975,1cyclictest28-21ksoftirqd/221:10:012
257839975,1cyclictest28-21ksoftirqd/200:15:192
257839975,1cyclictest2477-21sed20:34:592
257839972,2cyclictest10642-21cpuspeed_turbos00:30:142
257839970,6cyclictest14574-21switchtime19:50:192
257759971,6cyclictest0-21swapper/121:56:471
257759970,6cyclictest0-21swapper/120:30:181
257759970,6cyclictest0-21swapper/120:00:151
257759970,6cyclictest0-21swapper/119:27:451
257759970,3cyclictest0-21swapper/121:35:001
257759970,2cyclictest0-21swapper/122:50:381
257759970,1cyclictest0-21swapper/123:32:291
257759970,1cyclictest0-21swapper/123:13:131
257759970,1cyclictest0-21swapper/122:57:301
257759970,1cyclictest0-21swapper/100:26:111
257669976,1cyclictest9-21ksoftirqd/000:20:000
257669976,1cyclictest28828-21ssh21:20:210
257669976,1cyclictest24513-1kworker/u9:222:06:210
257669975,1cyclictest9-21ksoftirqd/021:35:150
257669975,1cyclictest327502chrt20:30:130
257669975,1cyclictest17998-21snmpd19:58:190
257669974,1cyclictest548-21systemd-logind20:37:080
257669974,1cyclictest548-21systemd-logind19:42:080
257669974,1cyclictest294-21systemd-udevd23:41:080
257669974,1cyclictest294-21systemd-udevd20:29:070
257669974,1cyclictest294-21systemd-udevd20:19:080
257669974,1cyclictest294-21systemd-udevd19:49:080
257669974,1cyclictest294-21systemd-udevd00:33:080
257669970,6cyclictest9419-21uniq22:20:160
257669970,6cyclictest8220-21wc23:00:200
257669970,6cyclictest7177-21ntp_states19:35:160
257669970,6cyclictest29969-21ssh23:30:130
257669970,6cyclictest26849-21ssh23:25:180
257669970,6cyclictest25810-21sh21:17:000
257669970,1cyclictest0-21swapper/021:25:190
257669970,1cyclictest0-21swapper/020:45:180
257919965,1cyclictest8980-21ssh23:01:373
257919965,1cyclictest31722-21ssh22:05:383
257919965,1cyclictest29678-21ssh22:45:403
257919965,1cyclictest2847-21ssh21:30:043
257919965,1cyclictest2792-21ssh23:35:513
257919965,1cyclictest25765-21ssh00:05:483
257919965,1cyclictest19981-21ssh00:00:053
257919965,1cyclictest17998-21snmpd23:55:413
257919965,1cyclictest17998-21snmpd23:55:403
257919965,1cyclictest17998-21snmpd23:21:003
257919965,1cyclictest17998-21snmpd21:18:193
257919965,1cyclictest17974-21cat21:05:173
257919965,1cyclictest10467-21ssh23:05:033
257919964,1cyclictest7101-21ssh22:16:173
257919964,1cyclictest28473-21wc00:10:153
257919964,1cyclictest17998-21snmpd20:52:153
257919964,1cyclictest17998-21snmpd20:34:003
257919964,1cyclictest17998-21snmpd19:37:493
257919963,2cyclictest29948-21expr23:30:133
257919961,3cyclictest0-21swapper/320:10:123
257919961,2cyclictest19224-21diskmemload21:58:273
257919961,2cyclictest0-21swapper/323:25:123
257919961,1cyclictest0-21swapper/319:15:153
257919960,3cyclictest0-21swapper/323:45:513
257919960,3cyclictest0-21swapper/322:50:033
257919960,2cyclictest0-21swapper/323:10:123
257839966,0cyclictest61650irq/122-eno123:55:142
257839966,0cyclictest61650irq/122-eno123:55:142
257839966,0cyclictest61650irq/122-eno123:35:002
257839966,0cyclictest61650irq/122-eno123:30:292
257839966,0cyclictest61650irq/122-eno123:10:042
257839966,0cyclictest61650irq/122-eno123:05:232
257839966,0cyclictest61650irq/122-eno123:00:162
257839966,0cyclictest61650irq/122-eno122:10:022
257839966,0cyclictest61650irq/122-eno121:10:152
257839966,0cyclictest61650irq/122-eno120:15:212
257839966,0cyclictest61650irq/122-eno119:38:562
257839966,0cyclictest61650irq/122-eno100:35:142
257839966,0cyclictest61650irq/122-eno100:25:152
257839966,0cyclictest61650irq/122-eno100:05:072
257839965,1cyclictest7983-21ssh23:44:392
257839965,1cyclictest714-21sshd19:20:352
257839965,1cyclictest61650irq/122-eno122:35:112
257839965,1cyclictest61650irq/122-eno120:50:132
257839965,1cyclictest28-21ksoftirqd/220:05:142
257839960,6cyclictest0-21swapper/220:26:472
257759961,4cyclictest0-21swapper/100:20:121
257759961,2cyclictest0-21swapper/123:52:111
257759961,2cyclictest0-21swapper/119:10:191
257759960,6cyclictest0-21swapper/123:28:341
257759960,6cyclictest0-21swapper/123:22:221
257759960,6cyclictest0-21swapper/123:05:151
257759960,6cyclictest0-21swapper/122:44:501
257759960,6cyclictest0-21swapper/122:28:541
257759960,6cyclictest0-21swapper/122:22:591
257759960,6cyclictest0-21swapper/121:48:501
257759960,6cyclictest0-21swapper/120:28:331
257759960,6cyclictest0-21swapper/120:16:261
257759960,6cyclictest0-21swapper/100:06:051
257759960,5cyclictest0-21swapper/123:02:041
257759960,5cyclictest0-21swapper/120:07:381
257759960,5cyclictest0-21swapper/119:30:171
257759960,4cyclictest0-21swapper/123:55:211
257759960,4cyclictest0-21swapper/123:55:201
257759960,4cyclictest0-21swapper/121:23:021
257759960,2cyclictest0-21swapper/121:37:101
257759960,1cyclictest0-21swapper/123:18:191
257759960,1cyclictest0-21swapper/120:45:151
257759960,0cyclictest0-21swapper/122:20:001
257669963,1cyclictest294-21systemd-udevd19:25:080
257669963,1cyclictest294-21systemd-udevd00:05:070
257669963,1cyclictest240-21systemd-journal22:40:010
257669960,5cyclictest0-21swapper/021:00:150
257669960,1cyclictest0-21swapper/021:45:160
19178260,1sleep10-21swapper/122:33:061
18906260,0sleep20-21swapper/221:50:132
257919953,1cyclictest17998-21snmpd20:18:583
257919950,2cyclictest0-21swapper/300:35:133
257919950,1cyclictest0-21swapper/319:40:113
257839955,0cyclictest61650irq/122-eno119:25:062
257839950,3cyclictest0-21swapper/221:00:192
257759955,0cyclictest0-21swapper/120:36:551
257759953,2cyclictest0-21swapper/119:55:191
257759952,3cyclictest0-21swapper/119:45:171
257759951,2cyclictest0-21swapper/121:40:171
257759951,2cyclictest0-21swapper/119:50:121
257759951,1cyclictest0-21swapper/120:20:141
257759950,5cyclictest0-21swapper/123:41:421
257759950,5cyclictest0-21swapper/122:37:321
257759950,5cyclictest0-21swapper/121:15:151
257759950,5cyclictest0-21swapper/121:09:571
257759950,4cyclictest0-21swapper/123:35:161
257759950,4cyclictest0-21swapper/122:45:121
257759950,4cyclictest0-21swapper/100:03:381
257759950,1cyclictest0-21swapper/119:15:191
257759950,0cyclictest0-21swapper/123:45:181
257759950,0cyclictest0-21swapper/122:02:051
257759950,0cyclictest0-21swapper/121:53:281
257759950,0cyclictest0-21swapper/121:26:461
257919940,1cyclictest0-21swapper/319:30:153
257759943,1cyclictest852-21chrt19:22:191
257759940,3cyclictest0-21swapper/120:55:171
257759940,3cyclictest0-21swapper/119:35:201
257759940,2cyclictest0-21swapper/119:40:111
257759940,1cyclictest0-21swapper/121:10:171
257759940,1cyclictest0-21swapper/100:35:021
257759940,0cyclictest0-21swapper/120:50:201
257759940,0cyclictest0-21swapper/100:15:111
257759930,1cyclictest0-21swapper/120:40:101
22525230,1sleep10-21swapper/120:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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