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2026-05-19 - 08:38
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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 Tue May 19, 2026 00:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2889822250,3sleep20-21swapper/219:05:162
296952214151,49sleep00-21swapper/019:06:210
298552200161,26sleep30-21swapper/319:08:253
296862198161,24sleep10-21swapper/119:06:121
180932720,0sleep20-21swapper/222:27:482
30053991410,4cyclictest21-21ksoftirqd/121:15:221
3006499130,0cyclictest0-21swapper/219:30:132
30052991211,1cyclictest9-21ksoftirqd/021:25:000
30052991211,1cyclictest0-21swapper/023:40:100
30052991210,1cyclictest9-21ksoftirqd/021:29:590
3006499115,1cyclictest31435-21ntpq19:10:162
3006499115,1cyclictest2146-21ssh22:05:232
3006499111,4cyclictest0-21swapper/223:50:292
3005299111,7cyclictest19174-21/usr/sbin/munin22:30:180
3007099109,1cyclictest35-21ksoftirqd/319:15:013
3007099109,1cyclictest17573-21ssh00:36:503
3006499106,3cyclictest61650irq/122-eno122:45:312
3006499105,1cyclictest61650irq/122-eno120:20:002
3006499105,1cyclictest61650irq/122-eno100:20:132
3006499105,1cyclictest2143-21ssh21:24:412
3006499105,1cyclictest19962-21ssh21:46:182
3006499105,1cyclictest13557-21ssh21:39:252
3006499104,1cyclictest22904-21diskmemload00:25:082
3006499104,1cyclictest22904-21diskmemload00:25:082
3006499104,1cyclictest20902-21ntpq19:55:182
3006499100,3cyclictest0-21swapper/222:18:062
3006499100,2cyclictest0-21swapper/222:55:162
3006499100,1cyclictest21555-21/usr/sbin/munin21:50:162
3005399105,5cyclictest56-21kworker/1:120:30:341
3005299109,1cyclictest9-21ksoftirqd/021:39:590
3005299108,1cyclictest9-21ksoftirqd/019:45:000
247692100,0sleep30-21swapper/300:04:493
211652100,0sleep20-21swapper/222:30:572
300709999,0cyclictest35-21ksoftirqd/323:18:033
300709998,1cyclictest35-21ksoftirqd/300:20:013
300709997,1cyclictest35-21ksoftirqd/322:10:003
300709991,5cyclictest0-21swapper/322:04:243
300709991,5cyclictest0-21swapper/322:04:233
300649999,0cyclictest0-21swapper/221:55:202
300649995,0cyclictest61650irq/122-eno123:02:082
300649995,0cyclictest61650irq/122-eno121:10:012
300649995,0cyclictest61650irq/122-eno121:05:132
300649994,1cyclictest61650irq/122-eno123:15:162
300649994,1cyclictest19784-21ssh23:56:162
300649990,4cyclictest0-21swapper/200:37:012
300539995,4cyclictest56-21kworker/1:120:41:471
300529994,4cyclictest301822sleep022:00:190
300529994,4cyclictest301822sleep022:00:180
300529992,3cyclictest21170-21perf00:00:000
300529990,1cyclictest240-21systemd-journal23:52:560
5935287,0sleep335-21ksoftirqd/322:10:353
3520280,1sleep30-21swapper/322:50:333
300709988,0cyclictest35-21ksoftirqd/323:59:363
300709987,1cyclictest35-21ksoftirqd/321:00:013
300709986,2cyclictest18430-21/usr/sbin/munin21:00:213
300709986,2cyclictest18430-21/usr/sbin/munin21:00:213
300709986,1cyclictest21453-21fschecks_time21:05:163
300709982,3cyclictest22904-21diskmemload21:28:463
300649986,1cyclictest61650irq/122-eno123:45:172
300649986,1cyclictest61650irq/122-eno121:32:372
300649986,1cyclictest61650irq/122-eno120:25:172
300649986,0cyclictest61650irq/122-eno122:40:422
300649986,0cyclictest61650irq/122-eno100:33:122
300649986,0cyclictest61650irq/122-eno100:33:112
300649986,0cyclictest61650irq/122-eno100:19:562
300649985,1cyclictest61650irq/122-eno122:12:192
300649985,0cyclictest61650irq/122-eno123:25:142
300649985,0cyclictest61650irq/122-eno121:40:582
300649985,0cyclictest61650irq/122-eno100:05:142
300649984,3cyclictest260462sleep223:21:032
300649983,3cyclictest309-21cut23:30:192
300649983,1cyclictest3560-21hddtemp_smartct23:35:142
300539985,0cyclictest0-21swapper/123:07:171
300539981,3cyclictest0-21swapper/100:05:381
300539980,8cyclictest0-21swapper/120:20:111
300539980,1cyclictest0-21swapper/123:40:111
300529987,1cyclictest9-21ksoftirqd/020:15:010
300529986,1cyclictest9-21ksoftirqd/020:40:000
300529986,1cyclictest27166-21/usr/sbin/munin21:15:160
300529983,1cyclictest14971-21/usr/sbin/munin22:24:590
300529982,5cyclictest19571-21perf19:55:010
300529982,5cyclictest11207-21latency_hist00:30:010
300529982,5cyclictest11207-21latency_hist00:30:000
300529982,3cyclictest693-21runrttasks22:38:580
15584280,0sleep30-21swapper/322:25:133
300709976,1cyclictest35-21ksoftirqd/321:15:433
300709976,1cyclictest35-21ksoftirqd/319:24:593
300709976,1cyclictest24083-21ntpq22:35:193
300709975,1cyclictest4990-21ssh23:36:393
300709975,1cyclictest26661-21ssh21:14:303
300709975,1cyclictest16490-21ssh21:42:073
300709974,1cyclictest240-21systemd-journal19:19:593
300709971,1cyclictest22904-21diskmemload00:11:533
300709971,1cyclictest0-21swapper/322:55:423
300709970,5cyclictest0-21swapper/321:56:093
300709970,4cyclictest0-21swapper/323:45:063
300709970,3cyclictest0-21swapper/323:25:053
300709970,2cyclictest6505-21ssh21:30:113
300709970,2cyclictest28974-21perf20:15:013
300709970,2cyclictest0-21swapper/300:24:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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