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2026-06-03 - 16:18
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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 Wed Jun 03, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
316762221154,54sleep30-21swapper/307:07:273
317642202162,26sleep20-21swapper/207:08:342
315472200162,25sleep10-21swapper/107:05:441
316282199146,41sleep00-21swapper/007:06:480
299612610,0sleep20-21swapper/209:59:542
88852170,0sleep10-21swapper/108:35:161
149462160,0sleep00-21swapper/009:39:150
3197699156,8cyclictest28-21ksoftirqd/212:30:162
50952120,0sleep10-21swapper/109:25:181
31976991210,1cyclictest28-21ksoftirqd/212:25:012
31984991111,0cyclictest0-21swapper/309:37:093
31976991111,0cyclictest28-21ksoftirqd/209:17:492
31976991110,1cyclictest28-21ksoftirqd/212:05:182
31976991110,1cyclictest28-21ksoftirqd/211:11:012
31976991110,1cyclictest28-21ksoftirqd/210:25:122
31976991110,1cyclictest28-21ksoftirqd/209:51:222
31976991110,0cyclictest28-21ksoftirqd/210:15:152
3196099113,4cyclictest25111-21grep11:20:000
3196099113,4cyclictest12656-21perf12:30:010
31984991010,0cyclictest0-21swapper/312:33:023
3197699109,1cyclictest28-21ksoftirqd/212:25:142
3197699109,1cyclictest28-21ksoftirqd/211:54:282
3197699109,1cyclictest28-21ksoftirqd/210:03:572
3197699108,1cyclictest28-21ksoftirqd/210:30:132
3197699100,9cyclictest0-21swapper/207:40:132
3196099109,1cyclictest9-21ksoftirqd/011:49:590
3196099103,4cyclictest20043-21sed12:40:000
319849996,2cyclictest1029-21snmpd09:59:283
319849992,2cyclictest27832-21telnet10:40:123
319849990,5cyclictest693-21runrttasks09:12:003
319769999,0cyclictest28-21ksoftirqd/211:34:152
319769999,0cyclictest28-21ksoftirqd/211:27:022
319769998,1cyclictest28-21ksoftirqd/211:44:432
319769998,1cyclictest28-21ksoftirqd/211:21:422
319769998,1cyclictest28-21ksoftirqd/211:18:112
319769998,1cyclictest28-21ksoftirqd/210:55:472
319769998,1cyclictest28-21ksoftirqd/210:05:132
319769998,1cyclictest28-21ksoftirqd/209:13:012
319769992,4cyclictest15206-21apt-get08:50:132
319609998,1cyclictest9-21ksoftirqd/008:00:000
319609997,1cyclictest6235-21needreboot07:20:170
319609990,4cyclictest13778-21perf11:04:590
5522280,0sleep30-21swapper/310:52:483
319849987,1cyclictest35-21ksoftirqd/309:00:013
319849987,1cyclictest35-21ksoftirqd/308:45:003
319849986,1cyclictest35-21ksoftirqd/309:06:053
319849986,1cyclictest1029-21snmpd12:17:023
319849986,1cyclictest1029-21snmpd11:08:113
319849986,1cyclictest1029-21snmpd10:12:223
319849986,1cyclictest1029-21snmpd08:31:333
319849986,1cyclictest1029-21snmpd07:36:593
319849982,2cyclictest24651-21diskmemload09:48:003
319849980,5cyclictest20359-21runrttasks11:12:533
319769988,0cyclictest28-21ksoftirqd/212:10:192
319769988,0cyclictest28-21ksoftirqd/211:55:182
319769988,0cyclictest28-21ksoftirqd/211:49:112
319769988,0cyclictest28-21ksoftirqd/208:10:182
319769988,0cyclictest28-21ksoftirqd/207:45:212
319769988,0cyclictest28-21ksoftirqd/207:15:142
319769987,1cyclictest28-21ksoftirqd/212:00:262
319769987,1cyclictest28-21ksoftirqd/211:09:562
319769987,1cyclictest28-21ksoftirqd/210:53:492
319769987,1cyclictest28-21ksoftirqd/210:43:002
319769987,1cyclictest28-21ksoftirqd/209:30:062
319769987,0cyclictest28-21ksoftirqd/209:35:162
319769986,1cyclictest61650irq/122-eno109:40:182
319769986,1cyclictest28-21ksoftirqd/211:00:162
319769986,1cyclictest28-21ksoftirqd/210:45:402
319769986,1cyclictest28-21ksoftirqd/210:10:142
319769986,1cyclictest28-21ksoftirqd/209:22:082
319769986,1cyclictest28-21ksoftirqd/209:05:122
319769986,1cyclictest28-21ksoftirqd/207:55:002
319769986,1cyclictest14666-21kworker/2:208:15:122
319769986,1cyclictest1029-21snmpd09:00:142
319769986,1cyclictest1029-21snmpd09:00:142
319769985,2cyclictest24651-21diskmemload10:35:172
319769980,0cyclictest0-21swapper/208:25:192
319699980,4cyclictest0-21swapper/112:00:191
319609986,1cyclictest16655-21ntpq11:50:170
319609986,1cyclictest1029-21snmpd11:58:500
319609986,1cyclictest1029-21snmpd10:28:500
319609986,1cyclictest1029-21snmpd07:53:030
319609982,5cyclictest24651-21diskmemload10:07:040
319609981,1cyclictest0-21swapper/007:41:040
319609980,7cyclictest28467-21ssh12:05:310
319609980,7cyclictest13459-21fschecks_count10:20:140
319609980,4cyclictest848-21latency_hist08:20:000
19556280,1sleep00-21swapper/011:10:320
4819270,1sleep10-21swapper/110:09:321
319849976,1cyclictest17488-1kworker/u9:211:59:533
319849976,1cyclictest1122-21cat09:20:143
319849976,1cyclictest1029-21snmpd09:03:383
319849976,1cyclictest1029-21snmpd09:03:373
319849975,2cyclictest35-21ksoftirqd/309:33:283
319849975,1cyclictest3472-21ssh10:05:383
319849975,1cyclictest2789-21apt-get07:15:113
319849975,1cyclictest11216-21ssh10:16:373
319849975,1cyclictest1029-21snmpd11:30:043
319849975,1cyclictest1029-21snmpd10:59:303
319849975,1cyclictest1029-21snmpd07:40:113
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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