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2026-08-17 - 10:10
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Mon Aug 17, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242202210156,42sleep00-21swapper/019:09:420
239042201163,25sleep20-21swapper/219:05:342
240942200161,25sleep30-21swapper/319:08:043
239232197157,27sleep10-21swapper/119:05:481
216212660,0sleep10-21swapper/100:20:011
114312180,0sleep00-21swapper/022:31:380
145162170,0sleep00-21swapper/021:50:170
24349991312,1cyclictest35-21ksoftirqd/322:05:013
209242130,0sleep10-21swapper/121:15:131
24339991210,1cyclictest28-21ksoftirqd/220:50:002
2433999120,11cyclictest0-21swapper/200:20:242
2433699120,8cyclictest0-21swapper/122:17:371
24349991110,1cyclictest35-21ksoftirqd/300:40:003
24339991110,1cyclictest28-21ksoftirqd/221:15:002
24339991110,1cyclictest28-21ksoftirqd/200:05:152
24339991110,0cyclictest28-21ksoftirqd/222:05:132
2433999110,11cyclictest0-21swapper/220:00:202
2433999110,1cyclictest0-21swapper/222:30:192
2434999108,1cyclictest16334-21interrupts23:25:203
2433999108,1cyclictest28-21ksoftirqd/223:00:162
2433999108,1cyclictest28-21ksoftirqd/222:24:592
2433999108,1cyclictest28-21ksoftirqd/220:25:002
2433999108,1cyclictest28-21ksoftirqd/200:35:142
2433999100,9cyclictest28184-21/usr/sbin/munin21:25:232
2432799108,1cyclictest9-21ksoftirqd/021:00:000
2432799102,4cyclictest17184-21diskmemload00:25:010
243499998,1cyclictest9993-21cat21:44:593
243499998,1cyclictest5584-21latency_hist22:25:003
243399999,0cyclictest28-21ksoftirqd/220:44:382
243399998,1cyclictest28-21ksoftirqd/223:30:192
243399997,1cyclictest28-21ksoftirqd/223:55:002
243399997,1cyclictest28-21ksoftirqd/220:30:002
243399997,1cyclictest28-21ksoftirqd/220:19:592
243399990,5cyclictest8807-21/usr/sbin/munin00:00:182
243369991,3cyclictest0-21swapper/122:55:141
243279998,1cyclictest9-21ksoftirqd/023:25:180
243279997,1cyclictest9-21ksoftirqd/020:09:590
243279990,1cyclictest240-21systemd-journal22:50:010
22777290,0sleep20-21swapper/221:15:422
11443290,1sleep20-21swapper/223:19:312
243499987,1cyclictest35-21ksoftirqd/320:08:293
243499987,1cyclictest11301-21snmpd21:31:173
243499987,1cyclictest1-21systemd20:14:073
243499986,1cyclictest5790-21cat23:10:183
243499986,1cyclictest35-21ksoftirqd/322:05:143
243499986,1cyclictest35-21ksoftirqd/319:18:283
243499986,1cyclictest11301-21snmpd23:53:163
243499986,1cyclictest11301-21snmpd22:10:063
243499986,1cyclictest11301-21snmpd21:05:213
243499986,1cyclictest11301-21snmpd19:53:343
243399988,0cyclictest28-21ksoftirqd/222:15:172
243399986,1cyclictest61650irq/122-eno122:35:222
243399986,1cyclictest61650irq/122-eno120:05:122
243399986,1cyclictest61650irq/122-eno100:30:152
243399986,1cyclictest11301-21snmpd20:55:542
243399980,7cyclictest0-21swapper/221:33:232
243399980,5cyclictest3914-21grep19:30:212
243369981,1cyclictest0-21swapper/121:52:581
243279987,1cyclictest15066-21apt21:05:110
243279987,0cyclictest9-21ksoftirqd/000:10:000
243279986,1cyclictest9-21ksoftirqd/019:50:010
243279986,1cyclictest9-21ksoftirqd/019:50:000
243279986,1cyclictest19289-21ssh21:10:470
243279986,1cyclictest19240-21ssh21:56:250
243279986,1cyclictest11301-21snmpd23:50:340
243279984,1cyclictest0-21swapper/022:00:190
243279982,4cyclictest32223-21apt-get00:35:140
243279981,1cyclictest17344-21ssh00:13:150
243279980,7cyclictest0-21swapper/023:20:190
243279980,4cyclictest25883-21sed23:40:010
243279980,4cyclictest14871-21perf21:04:590
243279980,1cyclictest7119-21ssh23:59:100
243279980,1cyclictest0-21swapper/020:45:220
243499976,1cyclictest11301-21snmpd23:33:203
243499976,1cyclictest11301-21snmpd21:21:213
243499976,1cyclictest11301-21snmpd00:09:133
243499975,1cyclictest19256-21ssh22:44:163
243499975,1cyclictest12967-21ssh21:48:433
243499975,1cyclictest11301-21snmpd23:42:223
243499975,1cyclictest11301-21snmpd22:39:373
243499975,1cyclictest11301-21snmpd21:52:553
243499975,1cyclictest11301-21snmpd20:55:083
243499975,1cyclictest11301-21snmpd20:41:403
243499975,1cyclictest11301-21snmpd20:31:173
243499975,1cyclictest11301-21snmpd19:48:553
243499975,1cyclictest11301-21snmpd19:48:543
243499975,1cyclictest11301-21snmpd19:10:453
243499974,0cyclictest17184-21diskmemload22:26:493
243499971,4cyclictest30095-21nscd00:15:143
243499971,2cyclictest0-21swapper/323:05:303
243499970,6cyclictest30114-21ssh21:25:463
243499970,3cyclictest26490-21cron22:55:003
243399976,1cyclictest61650irq/122-eno123:56:122
243399976,1cyclictest61650irq/122-eno122:57:122
243399976,1cyclictest61650irq/122-eno121:50:102
243399976,1cyclictest61650irq/122-eno100:11:422
243399976,1cyclictest28-21ksoftirqd/223:40:122
243399976,1cyclictest28-21ksoftirqd/200:25:032
243399976,0cyclictest61650irq/122-eno122:25:152
243399975,1cyclictest61650irq/122-eno123:10:152
243399975,1cyclictest28-21ksoftirqd/220:40:002
243399975,1cyclictest11301-21snmpd22:03:192
243399975,1cyclictest11301-21snmpd21:56:572
243399975,1cyclictest11301-21snmpd20:33:472
243399973,1cyclictest29692-21ssh23:45:112
243399970,6cyclictest0-21swapper/222:45:162
243399970,6cyclictest0-21swapper/221:36:132
243399970,4cyclictest0-21swapper/222:42:132
243399970,1cyclictest0-21swapper/222:50:162
243399970,1cyclictest0-21swapper/222:12:132
243399970,1cyclictest0-21swapper/219:56:522
243369977,0cyclictest0-21swapper/122:05:241
243369971,5cyclictest0-21swapper/122:00:171
243369970,6cyclictest0-21swapper/122:41:131
243369970,4cyclictest0-21swapper/121:45:261
243369970,1cyclictest0-21swapper/119:13:541
243279976,1cyclictest9-21ksoftirqd/019:14:590
243279976,1cyclictest18773-21grep00:15:140
243279976,1cyclictest11301-21snmpd19:22:210
243279975,1cyclictest9-21ksoftirqd/020:35:010
243279975,1cyclictest11301-21snmpd20:01:010
243279974,1cyclictest240-21systemd-journal20:51:070
243279970,6cyclictest956-21grep19:25:180
243279970,6cyclictest7798-21ssh22:26:100
243279970,6cyclictest6081-21ntp_states23:10:190
243279970,6cyclictest23291-21perf20:15:000
243279970,6cyclictest20878-21apt-get21:15:130
243279970,6cyclictest19278-21cat23:30:150
243279970,6cyclictest14911-21runrttasks22:36:340
243279970,6cyclictest10102-21ssh21:45:040
243279970,6cyclictest0-21swapper/023:45:110
243279970,6cyclictest0-21swapper/022:10:170
243279970,6cyclictest0-21swapper/021:40:090
243279970,6cyclictest0-21swapper/021:35:020
243279970,6cyclictest0-21swapper/021:20:120
243279970,6cyclictest0-21swapper/019:55:190
243279970,6cyclictest0-21swapper/000:00:110
243279970,4cyclictest1374-21/usr/sbin/munin23:05:120
243279970,1cyclictest8520-21aten2.4-expect23:15:150
243279970,1cyclictest4618-21ssh22:22:120
243279970,1cyclictest4001-21sshd19:30:320
243279970,1cyclictest31810-21aten_r1power_cu21:30:140
243279970,1cyclictest29698-21latency_hist19:19:590
243279970,1cyclictest25179-21ssh22:50:450
243279970,1cyclictest19579-21sed22:45:010
243279970,1cyclictest17184-21diskmemload21:26:020
243279970,1cyclictest0-21swapper/023:00:150
243279970,1cyclictest0-21swapper/020:20:200
243279970,1cyclictest0-21swapper/000:30:290
24660260,1sleep30-21swapper/323:36:183
243499965,1cyclictest6112-21ssh21:39:153
243499965,1cyclictest32162-21ssh23:00:323
243499965,1cyclictest19623-21ssh21:12:073
243499965,1cyclictest11301-21snmpd20:46:533
243499965,1cyclictest11301-21snmpd20:23:283
243499964,1cyclictest25993-21sed00:25:163
243499964,1cyclictest17184-21diskmemload00:30:453
243499964,1cyclictest11301-21snmpd20:19:153
243499963,1cyclictest21854-21/usr/sbin/munin00:20:153
243499961,4cyclictest0-21swapper/319:30:203
243499961,2cyclictest17184-21diskmemload22:46:133
243499961,1cyclictest0-21swapper/321:00:213
243499960,4cyclictest9545-21/usr/sbin/munin23:15:213
243499960,4cyclictest0-21swapper/323:59:203
243499960,4cyclictest0-21swapper/300:10:163
243499960,3cyclictest437-21grep23:50:003
243499960,3cyclictest32311-21apt-get19:25:143
243499960,3cyclictest0-21swapper/322:17:533
243499960,2cyclictest30066-21tail20:25:213
243499960,2cyclictest0-21swapper/321:57:283
243499960,2cyclictest0-21swapper/321:20:003
243499960,1cyclictest11894-21/usr/sbin/munin23:20:103
243399966,0cyclictest61650irq/122-eno121:45:092
243399966,0cyclictest61650irq/122-eno121:42:292
243399966,0cyclictest61650irq/122-eno121:20:132
243399966,0cyclictest61650irq/122-eno119:50:302
243399966,0cyclictest61650irq/122-eno100:15:062
243399965,1cyclictest61650irq/122-eno123:35:232
243399965,1cyclictest61650irq/122-eno123:20:112
243399965,1cyclictest61650irq/122-eno123:05:092
243399965,1cyclictest61650irq/122-eno120:10:192
243399965,1cyclictest28-21ksoftirqd/221:04:592
243399965,1cyclictest28-21ksoftirqd/219:36:162
243399965,1cyclictest28-21ksoftirqd/219:12:272
243399964,1cyclictest61650irq/122-eno123:25:182
243399964,1cyclictest28-21ksoftirqd/221:05:152
243399964,1cyclictest28-21ksoftirqd/219:15:012
243399962,2cyclictest240-21systemd-journal19:45:012
243399962,2cyclictest240-21systemd-journal19:45:012
243399960,6cyclictest0-21swapper/219:27:472
243399960,5cyclictest0-21swapper/219:24:332
243399960,3cyclictest8886-21irqstats20:50:152
243369960,6cyclictest0-21swapper/122:50:071
243369960,6cyclictest0-21swapper/122:36:081
243369960,6cyclictest0-21swapper/121:31:051
243369960,6cyclictest0-21swapper/121:29:061
243369960,6cyclictest0-21swapper/121:02:541
243369960,6cyclictest0-21swapper/100:31:151
243369960,5cyclictest0-21swapper/123:47:121
243369960,5cyclictest0-21swapper/120:37:351
243369960,5cyclictest0-21swapper/119:31:031
243369960,5cyclictest0-21swapper/100:14:081
243369960,5cyclictest0-21swapper/100:00:161
243369960,4cyclictest0-21swapper/123:20:091
243369960,4cyclictest0-21swapper/121:55:541
243369960,4cyclictest0-21swapper/121:40:141
243369960,4cyclictest0-21swapper/121:13:531
243369960,4cyclictest0-21swapper/100:36:411
243369960,3cyclictest0-21swapper/123:25:051
243369960,3cyclictest0-21swapper/122:10:191
243369960,3cyclictest0-21swapper/100:05:141
243369960,2cyclictest0-21swapper/122:20:151
243369960,1cyclictest0-21swapper/123:30:571
243369960,1cyclictest0-21swapper/123:14:331
243369960,1cyclictest0-21swapper/120:26:281
243279965,1cyclictest11301-21snmpd19:36:310
243279964,1cyclictest7736-21tail19:40:150
243279963,2cyclictest27300-21df_inode22:55:160
243279962,0cyclictest0-21swapper/020:40:130
243279960,2cyclictest0-21swapper/020:35:110
243279960,1cyclictest31135-21ssh22:15:050
243279960,1cyclictest25940-21grep00:25:150
243279960,0cyclictest0-21swapper/023:40:110
243279960,0cyclictest0-21swapper/022:05:160
243279960,0cyclictest0-21swapper/020:17:270
243279960,0cyclictest0-21swapper/019:53:400
243499954,1cyclictest5911-21awk19:35:183
243499954,1cyclictest11301-21snmpd19:40:553
243499953,1cyclictest1192-21cpuspeed_turbos20:35:143
243499953,1cyclictest11301-21snmpd20:53:143
243499953,0cyclictest17184-21diskmemload22:56:223
243499951,3cyclictest29952-21/usr/sbin/munin19:20:233
243499951,3cyclictest0-21swapper/319:55:123
243499950,4cyclictest7692-21apt-get00:00:123
243499950,1cyclictest10080-21grep22:30:173
243399950,4cyclictest6967-21/usr/sbin/munin19:40:142
243369955,0cyclictest0-21swapper/123:59:001
243369951,3cyclictest0-21swapper/120:50:121
243369950,5cyclictest0-21swapper/123:42:421
243369950,5cyclictest0-21swapper/123:38:391
243369950,5cyclictest0-21swapper/122:25:171
243369950,5cyclictest0-21swapper/121:08:451
243369950,5cyclictest0-21swapper/120:41:041
243369950,5cyclictest0-21swapper/120:00:201
243369950,5cyclictest0-21swapper/119:55:181
243369950,5cyclictest0-21swapper/119:39:361
243369950,5cyclictest0-21swapper/119:18:031
243369950,5cyclictest0-21swapper/100:29:021
243369950,4cyclictest0-21swapper/119:25:181
243369950,3cyclictest0-21swapper/123:50:131
243369950,3cyclictest0-21swapper/122:47:331
243369950,3cyclictest0-21swapper/122:30:201
243369950,3cyclictest0-21swapper/121:37:251
243369950,3cyclictest0-21swapper/121:21:591
243369950,3cyclictest0-21swapper/119:40:171
243369950,2cyclictest0-21swapper/123:00:161
243369950,2cyclictest0-21swapper/100:20:181
243369950,1cyclictest0-21swapper/123:17:241
243369950,1cyclictest0-21swapper/120:20:191
243369950,0cyclictest0-21swapper/123:05:091
243279950,2cyclictest240-21systemd-journal20:30:000
243499943,1cyclictest35-21ksoftirqd/320:00:173
243369940,2cyclictest0-21swapper/120:15:201
243369940,2cyclictest0-21swapper/120:10:121
243369940,1cyclictest0-21swapper/120:45:161
243369940,1cyclictest0-21swapper/119:50:181
243369940,0cyclictest0-21swapper/120:59:211
243369940,0cyclictest0-21swapper/120:30:211
243369932,1cyclictest187452sleep120:05:011
243369931,1cyclictest0-21swapper/119:45:131
243369931,1cyclictest0-21swapper/119:45:121
243369930,1cyclictest0-21swapper/119:20:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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