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2026-04-06 - 10:17
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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 Apr 06, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2393323990,9sleep228-21ksoftirqd/219:05:162
233082220158,24sleep10-21swapper/119:05:081
250732218162,24sleep00-21swapper/019:05:300
250982200161,25sleep30-21swapper/319:05:503
314172530,0sleep30-21swapper/319:20:133
48652330,1sleep24867-21tune2fs20:40:122
327672140,1sleep232766-21grep00:15:162
2549699124,4cyclictest14321-21latency_hist00:35:000
25496991210,1cyclictest9-21ksoftirqd/000:10:010
2552099119,1cyclictest28-21ksoftirqd/219:55:132
25520991110,1cyclictest28-21ksoftirqd/221:15:152
2551299110,10cyclictest0-21swapper/100:35:401
2549699119,1cyclictest9-21ksoftirqd/019:30:000
74552100,0sleep018343-21diskmemload23:42:580
2552099109,1cyclictest28-21ksoftirqd/222:50:132
2552099108,1cyclictest28-21ksoftirqd/223:20:122
2552099108,1cyclictest28-21ksoftirqd/221:45:202
2552099108,1cyclictest28-21ksoftirqd/220:50:152
2552099108,1cyclictest28-21ksoftirqd/219:15:012
2551299100,4cyclictest0-21swapper/121:20:121
2549699102,4cyclictest27909-21cat19:15:010
28057290,0sleep30-21swapper/323:27:043
255259990,6cyclictest358-21apt-get22:10:113
255259990,5cyclictest18343-21diskmemload21:20:203
255259990,4cyclictest0-21swapper/300:30:113
255209998,1cyclictest28-21ksoftirqd/222:15:182
255209998,1cyclictest28-21ksoftirqd/221:30:182
255209997,1cyclictest28-21ksoftirqd/223:25:152
255209997,1cyclictest28-21ksoftirqd/222:45:122
255209997,1cyclictest28-21ksoftirqd/222:25:112
255209997,1cyclictest28-21ksoftirqd/222:10:262
255209997,1cyclictest28-21ksoftirqd/219:35:002
255209991,6cyclictest7959-21kworker/2:220:23:172
255209990,7cyclictest7959-21kworker/2:221:01:592
254969994,2cyclictest240-21systemd-journal21:35:150
254969993,3cyclictest240-21systemd-journal00:19:590
255259986,1cyclictest35-21ksoftirqd/319:50:003
255259980,4cyclictest0-21swapper/322:18:293
255259980,3cyclictest0-21swapper/322:04:493
255259980,3cyclictest0-21swapper/300:01:533
255209988,0cyclictest0-21swapper/200:35:432
255209987,1cyclictest28-21ksoftirqd/223:55:132
255209987,1cyclictest28-21ksoftirqd/223:45:152
255209987,1cyclictest28-21ksoftirqd/223:40:102
255209987,1cyclictest28-21ksoftirqd/223:30:152
255209987,1cyclictest28-21ksoftirqd/223:15:152
255209987,1cyclictest28-21ksoftirqd/200:30:152
255209987,1cyclictest28-21ksoftirqd/200:25:002
255209986,1cyclictest61650irq/122-eno121:10:012
255209986,1cyclictest61650irq/122-eno100:10:162
255209986,1cyclictest28-21ksoftirqd/222:55:172
255209986,1cyclictest28-21ksoftirqd/221:20:132
255209986,1cyclictest28-21ksoftirqd/221:10:142
255209986,1cyclictest28-21ksoftirqd/220:25:142
255209986,1cyclictest28-21ksoftirqd/220:15:152
255209986,1cyclictest28-21ksoftirqd/200:25:152
255209986,1cyclictest0-21swapper/222:35:132
255209980,5cyclictest23205-21sh00:04:122
254969988,0cyclictest9-21ksoftirqd/021:55:010
254969982,5cyclictest18343-21diskmemload23:25:160
254969981,4cyclictest0-21swapper/020:48:280
254969980,6cyclictest8350-21ssh00:25:190
254969980,4cyclictest0-21swapper/019:30:110
2301280,1sleep10-21swapper/122:54:541
12417280,0sleep30-21swapper/321:42:153
30728270,0sleep30-21swapper/319:18:223
255259976,1cyclictest35-21ksoftirqd/319:10:363
255259975,1cyclictest9433-21cat23:45:153
255259975,1cyclictest8753-21ssh23:01:383
255259975,1cyclictest35-21ksoftirqd/323:40:183
255259975,0cyclictest18343-21diskmemload22:09:213
255259974,1cyclictest240-21systemd-journal19:34:593
255259973,2cyclictest18343-21diskmemload23:21:393
255259972,4cyclictest5762-21apt-get19:35:113
255259972,3cyclictest240-21systemd-journal22:59:553
255259971,5cyclictest27217-21apt-get20:20:103
255259970,3cyclictest0-21swapper/322:33:473
255259970,3cyclictest0-21swapper/321:49:413
255259970,2cyclictest0-21swapper/300:36:013
255209977,0cyclictest28-21ksoftirqd/223:00:172
255209977,0cyclictest0-21swapper/220:45:442
255209976,1cyclictest61650irq/122-eno122:30:122
255209976,1cyclictest28-21ksoftirqd/222:40:112
255209976,1cyclictest28-21ksoftirqd/222:20:132
255209976,1cyclictest28-21ksoftirqd/222:00:142
255209976,1cyclictest28-21ksoftirqd/221:35:122
255209976,1cyclictest28-21ksoftirqd/221:25:122
255209976,1cyclictest28-21ksoftirqd/220:30:142
255209976,1cyclictest28-21ksoftirqd/219:40:172
255209976,1cyclictest28-21ksoftirqd/219:25:142
255209976,1cyclictest28-21ksoftirqd/219:20:142
255209975,1cyclictest61650irq/122-eno123:10:142
255209975,1cyclictest61650irq/122-eno121:50:122
255209975,1cyclictest61650irq/122-eno119:35:172
255209975,1cyclictest28-21ksoftirqd/200:05:122
255209974,1cyclictest240-21systemd-journal23:55:002
255209971,2cyclictest240-21systemd-journal20:15:012
255129977,0cyclictest21-21ksoftirqd/122:18:091
255129973,4cyclictest56-21kworker/1:123:59:421
255129973,0cyclictest0-21swapper/122:25:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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