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2026-08-17 - 19:27
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Mon Aug 17, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100612205150,21sleep10-21swapper/107:08:261
101472204140,20sleep00-21swapper/007:09:330
98632199161,25sleep30-21swapper/307:05:503
100322197160,24sleep20-21swapper/207:08:012
290512720,0sleep00-21swapper/010:30:210
304032700,0sleep10-21swapper/107:50:141
38692600,0sleep00-21swapper/010:40:230
88992130,0sleep335-21ksoftirqd/310:01:443
1029799110,10cyclictest0-21swapper/209:20:192
1028999110,11cyclictest0-21swapper/107:35:181
1028299100,3cyclictest24192-21apt-get10:25:110
5572290,1sleep10-21swapper/109:12:131
5246297,1sleep228-21ksoftirqd/211:30:002
102979998,1cyclictest22809-21ssh11:07:142
102979990,6cyclictest1982-21sendmail-mta09:57:162
102829997,1cyclictest733-21sshd10:55:360
103059986,1cyclictest11301-21snmpd12:14:543
103059986,1cyclictest11301-21snmpd09:55:373
103059986,1cyclictest11301-21snmpd09:48:493
103059986,1cyclictest11301-21snmpd09:06:093
103059986,1cyclictest11301-21snmpd07:13:513
103059982,2cyclictest2917-21diskmemload12:15:023
103059980,7cyclictest25912-21perf08:50:003
103059980,6cyclictest0-21swapper/312:07:433
103059980,5cyclictest0-21swapper/309:28:313
102979986,1cyclictest11301-21snmpd07:59:382
102979986,1cyclictest11301-21snmpd07:28:132
102899981,5cyclictest0-21swapper/112:25:171
102899980,8cyclictest0-21swapper/107:40:141
102829987,1cyclictest23174-21ssh10:22:380
102829987,1cyclictest23174-21ssh10:22:370
102829986,1cyclictest11301-21snmpd10:12:130
102829986,1cyclictest11301-21snmpd09:25:570
102829986,1cyclictest11301-21snmpd09:03:000
102829986,1cyclictest11301-21snmpd07:38:070
102829983,1cyclictest786-21/usr/sbin/munin09:05:160
102829981,6cyclictest2917-21diskmemload11:50:110
102829980,7cyclictest30301-21apt-get12:05:120
102829980,7cyclictest20136-21seq09:32:060
102829980,7cyclictest17659-21ssh12:31:590
102829980,5cyclictest26792-21ssh12:00:110
102829980,4cyclictest0-21swapper/010:55:000
103059976,1cyclictest35-21ksoftirqd/309:54:323
103059976,1cyclictest35-21ksoftirqd/308:20:003
103059975,1cyclictest35-21ksoftirqd/308:20:123
103059975,1cyclictest28892-21ntpq10:30:203
103059975,1cyclictest11301-21snmpd12:00:443
103059975,1cyclictest11301-21snmpd11:14:493
103059975,1cyclictest11301-21snmpd10:55:233
103059975,1cyclictest11301-21snmpd08:25:113
103059975,1cyclictest11301-21snmpd07:49:363
103059975,1cyclictest11301-21snmpd07:24:283
103059974,1cyclictest13650irq/124-ahci[0010:19:543
103059974,1cyclictest13650irq/124-ahci[0007:19:553
103059972,3cyclictest21085-21munin-plugin-st09:34:593
103059971,5cyclictest23329-21kworker/u8:109:39:153
103059970,6cyclictest9033-21apt-get11:35:103
103059970,6cyclictest11960-21telnet12:25:133
103059970,4cyclictest0-21swapper/311:28:523
103059970,3cyclictest0-21swapper/312:35:183
103059970,3cyclictest0-21swapper/310:38:093
103059970,3cyclictest0-21swapper/309:22:053
103059970,1cyclictest0-21swapper/310:50:133
102979976,1cyclictest61650irq/122-eno111:40:122
102979976,1cyclictest61650irq/122-eno110:04:012
102979976,1cyclictest61650irq/122-eno109:25:532
102979976,1cyclictest11301-21snmpd09:40:332
102979975,1cyclictest61650irq/122-eno109:45:142
102979975,1cyclictest61650irq/122-eno108:35:162
102979975,1cyclictest11301-21snmpd11:53:472
102979973,4cyclictest12932-21cut07:15:012
102979973,3cyclictest10268-21cyclictest12:38:302
102979973,2cyclictest548-21systemd-logind07:45:192
102979972,4cyclictest21942-21diskstats08:40:152
102979971,3cyclictest2917-21diskmemload11:00:142
102979970,5cyclictest23251-21apt-get11:55:102
102979970,3cyclictest557-21irqbalance11:38:372
102979970,2cyclictest0-21swapper/211:47:192
102979970,1cyclictest0-21swapper/212:25:032
102899971,6cyclictest0-21swapper/110:38:181
102899971,3cyclictest0-21swapper/110:50:591
102899970,7cyclictest0-21swapper/110:05:181
102899970,6cyclictest0-21swapper/107:49:031
102899970,5cyclictest0-21swapper/110:04:591
102899970,4cyclictest0-21swapper/111:45:191
102899970,4cyclictest0-21swapper/111:37:241
102899970,3cyclictest0-21swapper/111:12:341
102899970,1cyclictest0-21swapper/112:37:001
102829976,1cyclictest9-21ksoftirqd/008:32:550
102829976,1cyclictest32436-1kworker/u9:212:10:290
102829976,1cyclictest23356-1kworker/u9:209:40:150
102829976,1cyclictest19394-21df_inode12:35:140
102829976,1cyclictest11301-21snmpd08:02:400
102829975,1cyclictest31194-21ssh10:35:100
102829975,1cyclictest11301-21snmpd08:47:540
102829975,1cyclictest11301-21snmpd08:40:200
102829975,1cyclictest11301-21snmpd08:14:370
102829975,1cyclictest11301-21snmpd07:42:480
102829975,1cyclictest11301-21snmpd07:22:310
102829973,1cyclictest17180-21/usr/sbin/munin10:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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