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2026-08-14 - 21:55
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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 Fri Aug 14, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21952201162,25sleep20-21swapper/207:09:232
21992199160,25sleep10-21swapper/107:09:261
19922199161,24sleep00-21swapper/007:06:440
20202198159,25sleep30-21swapper/307:07:073
280232680,0sleep10-21swapper/109:10:001
279182610,0sleep30-21swapper/311:25:193
262882580,0sleep30-21swapper/307:56:333
5202540,0sleep30-21swapper/308:10:193
232799240,12cyclictest0-21swapper/009:40:110
2342991716,1cyclictest28-21ksoftirqd/209:19:262
234299140,13cyclictest0-21swapper/211:35:182
2342991313,0cyclictest0-21swapper/211:01:412
2342991312,1cyclictest28-21ksoftirqd/207:45:002
232799134,4cyclictest22874-21apt-get09:00:000
232799133,5cyclictest20567-21cat08:55:000
272272120,0sleep10-21swapper/110:40:111
2342991211,1cyclictest28-21ksoftirqd/210:40:152
234299120,11cyclictest0-21swapper/211:40:122
2327991212,0cyclictest0-21swapper/011:30:110
2327991210,1cyclictest9-21ksoftirqd/008:05:000
234299119,1cyclictest28-21ksoftirqd/207:25:002
2342991110,1cyclictest28-21ksoftirqd/212:17:572
2342991110,1cyclictest28-21ksoftirqd/211:22:592
2342991110,1cyclictest28-21ksoftirqd/211:11:482
2342991110,1cyclictest28-21ksoftirqd/210:03:352
2342991110,1cyclictest28-21ksoftirqd/209:52:022
2342991110,1cyclictest28-21ksoftirqd/209:30:192
234299110,3cyclictest0-21swapper/207:55:122
233599110,10cyclictest0-21swapper/110:30:171
234299109,1cyclictest28-21ksoftirqd/212:05:162
234299109,1cyclictest28-21ksoftirqd/211:27:152
234299109,1cyclictest28-21ksoftirqd/210:38:372
234299109,1cyclictest28-21ksoftirqd/209:40:122
234299109,1cyclictest28-21ksoftirqd/209:25:232
234299109,1cyclictest28-21ksoftirqd/209:13:372
234299109,1cyclictest28-21ksoftirqd/208:10:132
234299108,1cyclictest28-21ksoftirqd/211:15:192
234299108,1cyclictest28-21ksoftirqd/209:21:492
233599100,9cyclictest0-21swapper/111:35:131
232799109,1cyclictest9-21ksoftirqd/011:00:010
232799101,4cyclictest4471-21latency_hist11:40:000
23509990,8cyclictest0-21swapper/310:43:263
23429999,0cyclictest28-21ksoftirqd/212:39:412
23429999,0cyclictest28-21ksoftirqd/212:20:182
23429998,1cyclictest61650irq/122-eno110:15:132
23429998,1cyclictest28-21ksoftirqd/212:10:122
23429998,1cyclictest28-21ksoftirqd/212:00:132
23429998,1cyclictest28-21ksoftirqd/211:30:142
23429998,1cyclictest28-21ksoftirqd/211:05:122
23429998,1cyclictest28-21ksoftirqd/210:30:372
23429998,1cyclictest28-21ksoftirqd/210:24:332
23429997,1cyclictest28-21ksoftirqd/210:50:152
23429997,1cyclictest28-21ksoftirqd/210:14:132
23429997,1cyclictest28-21ksoftirqd/209:10:002
23429996,3cyclictest28-21ksoftirqd/210:05:212
23429995,3cyclictest61650irq/122-eno109:48:352
23359990,8cyclictest0-21swapper/112:10:111
23279990,6cyclictest27799-21diskmemload12:25:120
23279990,5cyclictest4685-21munin-node10:06:460
23509987,1cyclictest35-21ksoftirqd/311:35:003
23509987,1cyclictest11301-21snmpd10:02:143
23509986,1cyclictest11301-21snmpd12:00:203
23509986,1cyclictest11301-21snmpd11:52:143
23509986,1cyclictest11301-21snmpd07:42:153
23509982,5cyclictest1794-21/usr/sbin/munin10:50:153
23509982,3cyclictest0-21swapper/311:15:103
23509981,5cyclictest27799-21diskmemload11:04:313
23509980,4cyclictest559-21cron09:20:003
23429987,1cyclictest28-21ksoftirqd/211:45:142
23429987,1cyclictest28-21ksoftirqd/210:25:242
23429987,1cyclictest28-21ksoftirqd/208:25:132
23429986,1cyclictest28-21ksoftirqd/212:34:242
23429986,1cyclictest28-21ksoftirqd/211:51:282
23429986,1cyclictest28-21ksoftirqd/210:55:132
23429986,1cyclictest28-21ksoftirqd/210:45:212
23429986,1cyclictest17387-21kworker/2:108:15:182
23429986,1cyclictest16091-21cat11:55:152
23429980,7cyclictest27630-21apt-get09:55:122
23279987,1cyclictest11301-21snmpd09:07:050
23279986,1cyclictest11301-21snmpd10:20:230
23279982,5cyclictest21916-21perf07:50:000
23279981,6cyclictest20617-21ssh09:45:130
23279980,7cyclictest11083-21ssh11:48:560
23279980,4cyclictest19335-21apt-get11:15:100
23279980,2cyclictest26339-21ssh11:25:100
23279980,1cyclictest8399-21ssh12:30:160
23509976,1cyclictest29297-21aten_r1power_fr12:15:133
23509976,1cyclictest27956-21ntpq08:00:183
23509975,2cyclictest31296-21fschecks_count10:45:143
23509975,1cyclictest6655-21ssh11:40:593
23509975,1cyclictest35-21ksoftirqd/312:25:223
23509975,1cyclictest18258-21ssh11:12:263
23509975,1cyclictest11485-21ssh10:16:483
23509975,1cyclictest11301-21snmpd08:35:563
23509975,1cyclictest11301-21snmpd07:25:483
23509973,2cyclictest7346-21/usr/sbin/munin12:30:163
23509971,5cyclictest27799-21diskmemload09:40:573
23509971,4cyclictest10848-21apt-get12:35:113
23509971,2cyclictest0-21swapper/310:56:593
23509970,5cyclictest27799-21diskmemload11:45:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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