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2025-08-27 - 14:34
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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 27, 2025 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32032231157,24sleep00-21swapper/007:07:130
31322215152,23sleep20-21swapper/207:06:182
31262201164,24sleep10-21swapper/107:06:141
34162198160,24sleep30-21swapper/307:09:583
86412650,0sleep10-21swapper/108:25:201
79052620,0sleep10-21swapper/111:33:591
289222140,0sleep10-21swapper/109:50:221
351699131,0cyclictest0-21swapper/211:00:112
351699119,1cyclictest28-21ksoftirqd/210:45:002
351699119,1cyclictest28-21ksoftirqd/210:00:002
349699112,4cyclictest8910-21latency_hist12:20:010
349699112,4cyclictest23309-21latency_hist09:45:010
352199108,1cyclictest35-21ksoftirqd/308:34:593
352199107,1cyclictest35-21ksoftirqd/312:00:203
351699109,1cyclictest28-21ksoftirqd/210:45:012
351699108,1cyclictest28-21ksoftirqd/211:35:142
351699108,1cyclictest28-21ksoftirqd/208:10:002
350599100,4cyclictest0-21swapper/110:10:131
349699102,4cyclictest16911-21perf10:20:010
349699101,4cyclictest18985-21date08:50:000
349699100,5cyclictest2071-21date10:00:000
35219999,0cyclictest35-21ksoftirqd/310:20:013
35219990,5cyclictest0-21swapper/312:10:383
35169998,1cyclictest28-21ksoftirqd/210:30:012
35169997,1cyclictest0-21swapper/208:10:172
35169996,1cyclictest60950irq/123-eno111:49:342
35169990,5cyclictest567-21nscd08:43:252
35169990,0cyclictest28586-21diskmemload11:20:192
26088290,1sleep10-21swapper/111:15:071
35219984,2cyclictest28586-21diskmemload09:14:023
35219982,2cyclictest0-21swapper/310:49:253
35219980,5cyclictest0-21swapper/308:05:143
35169987,1cyclictest28-21ksoftirqd/211:10:012
35169986,1cyclictest60950irq/123-eno111:52:182
35169986,1cyclictest60950irq/123-eno109:41:482
35169986,1cyclictest4579-21perf11:30:002
35169986,1cyclictest28-21ksoftirqd/210:55:002
35169984,2cyclictest254-21systemd-journal09:20:002
35169980,2cyclictest0-21swapper/207:30:132
35059982,5cyclictest85302sleep110:07:261
35059980,4cyclictest0-21swapper/112:05:161
34969987,1cyclictest9-21ksoftirqd/010:09:590
34969986,1cyclictest20754-21ssh11:50:190
34969983,2cyclictest254-21systemd-journal11:45:000
34969982,3cyclictest19907-21perf12:35:010
34969981,6cyclictest10064-1kworker/u9:109:30:180
34969980,7cyclictest27805-21grep12:00:180
34969980,7cyclictest26029-21ssh09:47:170
34969980,7cyclictest18505-21ssh11:47:460
34969980,5cyclictest0-21swapper/010:55:130
34969980,4cyclictest29637-21latency_hist11:20:010
32693280,0sleep328586-21diskmemload11:23:143
19017286,1sleep228-21ksoftirqd/210:20:362
35219976,1cyclictest8259-21cat10:50:183
35219976,1cyclictest557-21nscd10:29:233
35219976,1cyclictest170692sleep311:01:473
35219976,0cyclictest0-21swapper/310:40:123
35219975,1cyclictest35-21ksoftirqd/307:15:003
35219975,1cyclictest27057-21cat11:15:203
35219975,1cyclictest12655-21ntpq07:25:213
35219974,1cyclictest2268-21missed_timers11:25:213
35219971,5cyclictest28586-21diskmemload11:40:203
35219971,5cyclictest28586-21diskmemload10:01:253
35219971,5cyclictest14469-21apt-get08:40:133
35219971,4cyclictest28586-21diskmemload12:05:583
35219971,4cyclictest0-21swapper/311:51:563
35219970,6cyclictest11619-21ssh10:10:373
35219970,2cyclictest742-21runrttasks12:23:533
35219970,2cyclictest742-21runrttasks12:23:523
35219970,2cyclictest0-21swapper/312:30:513
35219970,2cyclictest0-21swapper/311:35:253
35169977,0cyclictest28-21ksoftirqd/211:30:232
35169976,1cyclictest60950irq/123-eno112:12:512
35169976,1cyclictest60950irq/123-eno112:00:182
35169976,1cyclictest60950irq/123-eno110:12:452
35169976,1cyclictest60950irq/123-eno110:04:282
35169976,1cyclictest60950irq/123-eno109:53:202
35169976,1cyclictest28-21ksoftirqd/210:55:012
35169975,1cyclictest9156-21ssh12:20:022
35169975,1cyclictest9156-21ssh12:20:022
35169975,1cyclictest60950irq/123-eno112:15:182
35169975,1cyclictest60950irq/123-eno112:05:232
35169975,1cyclictest60950irq/123-eno109:20:142
35169975,1cyclictest60950irq/123-eno107:15:012
35169975,1cyclictest28-21ksoftirqd/209:00:012
35169975,1cyclictest28-21ksoftirqd/209:00:012
35169975,1cyclictest26523-21ssh10:30:472
35169972,2cyclictest254-21systemd-journal09:10:012
35169970,3cyclictest0-21swapper/208:15:122
35059971,3cyclictest0-21swapper/112:39:591
35059970,6cyclictest0-21swapper/107:30:171
35059970,4cyclictest0-21swapper/112:10:191
35059970,4cyclictest0-21swapper/111:26:401
35059970,4cyclictest0-21swapper/110:15:021
35059970,4cyclictest0-21swapper/109:45:221
35059970,4cyclictest0-21swapper/109:05:151
35059970,4cyclictest0-21swapper/109:00:121
35059970,3cyclictest0-21swapper/109:25:181
34969976,1cyclictest9-21ksoftirqd/007:20:000
34969976,1cyclictest29129-1kworker/u9:012:05:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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