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2026-08-05 - 23:21
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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 Aug 05, 2026 12:45:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
317792216153,22sleep30-21swapper/307:09:483
317632215150,51sleep20-21swapper/207:09:362
314692212149,50sleep00-21swapper/007:05:400
316252199160,25sleep10-21swapper/107:07:451
126652850,1sleep121-21ksoftirqd/111:40:201
226132660,0sleep20-21swapper/211:10:122
326822650,0sleep10-21swapper/112:10:121
3190199130,1cyclictest15525-21diskmemload11:04:263
31894991210,1cyclictest28-21ksoftirqd/207:45:002
28802120,1sleep315525-21diskmemload10:40:223
31901991110,1cyclictest35-21ksoftirqd/307:35:003
3189499100,10cyclictest0-21swapper/210:34:582
3188799109,1cyclictest9-21ksoftirqd/012:05:000
3188799109,1cyclictest9-21ksoftirqd/011:50:120
3188799109,1cyclictest9-21ksoftirqd/011:40:010
3188799109,1cyclictest9-21ksoftirqd/011:10:010
3188799109,1cyclictest9-21ksoftirqd/010:40:010
3188799109,1cyclictest9-21ksoftirqd/010:25:010
3188799109,1cyclictest9-21ksoftirqd/010:10:010
3188799103,4cyclictest294-21systemd-udevd11:47:070
3188799102,6cyclictest294-21systemd-udevd10:25:070
3188799100,7cyclictest240-21systemd-journal11:43:550
318949994,2cyclictest240-21systemd-journal08:20:002
318949990,0cyclictest0-21swapper/211:05:192
318879998,1cyclictest9-21ksoftirqd/012:30:130
318879998,1cyclictest9-21ksoftirqd/012:10:010
318879994,4cyclictest0-21swapper/009:50:080
318879993,5cyclictest14962-21perf09:05:000
319019987,1cyclictest35-21ksoftirqd/308:50:013
319019986,1cyclictest11301-21snmpd11:36:563
319019986,1cyclictest11301-21snmpd10:26:373
319019986,1cyclictest11301-21snmpd09:59:173
319019986,1cyclictest11301-21snmpd08:25:333
319019986,1cyclictest11301-21snmpd08:12:153
319019986,1cyclictest11301-21snmpd07:49:333
319019986,1cyclictest10522-21sh12:24:593
319019981,6cyclictest11651-21apt-get10:55:123
319019981,4cyclictest15867-21ssh11:45:173
319019980,6cyclictest0-21swapper/310:31:283
319019980,4cyclictest0-21swapper/309:45:023
318949986,1cyclictest61650irq/122-eno110:15:142
318949986,1cyclictest11301-21snmpd10:50:052
318949984,2cyclictest240-21systemd-journal12:35:012
318949984,2cyclictest240-21systemd-journal11:43:562
318949983,3cyclictest17131-21sh12:33:462
318949982,4cyclictest15525-21diskmemload11:55:092
318949981,4cyclictest908-21runrttasks09:52:442
318949980,6cyclictest0-21swapper/211:50:052
318949980,5cyclictest17127-21kworker/u8:209:16:582
318949980,3cyclictest25120-21apt-get12:00:022
318949980,2cyclictest0-21swapper/212:20:112
318949980,2cyclictest0-21swapper/211:45:132
318889981,6cyclictest0-21swapper/109:19:081
318889981,1cyclictest0-21swapper/108:35:531
318879987,1cyclictest9-21ksoftirqd/011:20:150
318879986,1cyclictest11301-21snmpd07:35:180
318879985,1cyclictest548-21systemd-logind08:51:070
318879985,1cyclictest548-21systemd-logind07:21:080
318879985,1cyclictest294-21systemd-udevd08:21:070
318879985,1cyclictest240-21systemd-journal11:27:070
318879985,1cyclictest240-21systemd-journal08:39:070
318879981,6cyclictest27834-21ssh11:15:550
318879980,7cyclictest23928-21grep11:10:200
319019976,1cyclictest11301-21snmpd10:21:153
319019975,1cyclictest3565-21ssh11:29:333
319019975,1cyclictest28312-21ssh11:17:283
319019975,1cyclictest11301-21snmpd12:17:003
319019975,1cyclictest11301-21snmpd09:41:393
319019975,1cyclictest11301-21snmpd09:00:083
319019975,1cyclictest11301-21snmpd08:33:483
319019975,1cyclictest11301-21snmpd07:51:163
319019975,1cyclictest11301-21snmpd07:41:143
319019975,1cyclictest11301-21snmpd07:23:323
319019974,1cyclictest12322-21proc_pri11:40:173
319019973,3cyclictest0-21swapper/310:03:383
319019972,3cyclictest15525-21diskmemload10:45:453
319019972,2cyclictest11301-21snmpd08:15:063
319019972,1cyclictest15525-21diskmemload10:17:523
319019971,4cyclictest0-21swapper/312:01:143
319019970,5cyclictest0-21swapper/312:05:473
319019970,4cyclictest0-21swapper/312:35:453
319019970,4cyclictest0-21swapper/311:30:113
319019970,3cyclictest0-21swapper/309:17:293
319019970,2cyclictest0-21swapper/311:09:263
318949976,1cyclictest61650irq/122-eno111:25:132
318949976,1cyclictest61650irq/122-eno110:10:192
318949976,1cyclictest61650irq/122-eno109:34:072
318949976,1cyclictest61650irq/122-eno109:14:562
318949975,2cyclictest31874-21cyclictest11:21:592
318949975,1cyclictest25958-21ssh10:29:122
318949975,1cyclictest12825-21ntpq10:55:172
318949975,1cyclictest11301-21snmpd11:36:532
318949975,1cyclictest11301-21snmpd09:44:032
318949975,1cyclictest11301-21snmpd08:01:282
318949973,3cyclictest20833-21rt-features10:20:202
318949973,2cyclictest240-21systemd-journal08:14:592
318949973,2cyclictest240-21systemd-journal07:14:592
318949971,6cyclictest0-21swapper/210:42:122
318949971,6cyclictest0-21swapper/208:35:402
318949970,6cyclictest0-21swapper/208:55:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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