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2026-01-07 - 01:32
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Tue Jan 06, 2026 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3442621997131,21cyclictest3616241-21ethtool12:15:154
3442623995818,39cyclictest0-21swapper/610:55:186
3442622995334,19cyclictest0-21swapper/511:15:145
3442622995314,19cyclictest0-21swapper/511:00:165
3442623995214,19cyclictest0-21swapper/608:15:156
3442622995233,19cyclictest0-21swapper/508:40:175
3442622995133,18cyclictest0-21swapper/511:35:155
3442617995112,19cyclictest0-21swapper/010:05:160
3442624995012,38cyclictest0-21swapper/708:15:167
344262499489,39cyclictest0-21swapper/711:50:157
344262299488,39cyclictest0-21swapper/510:05:175
3442622994829,19cyclictest0-21swapper/510:36:265
344262399474,19cyclictest0-21swapper/611:35:156
344262399474,19cyclictest0-21swapper/610:00:166
3442622994728,19cyclictest105-21kcompactd008:30:175
3442621994728,0cyclictest3602784-21systemctl11:50:214
344262399469,18cyclictest0-21swapper/608:05:156
344262399456,39cyclictest0-21swapper/608:10:176
3442622994525,20cyclictest3439321-21kworker/6:007:12:115
3442622994524,20cyclictest3479187-21kworker/5:108:24:165
344262299447,18cyclictest0-21swapper/507:50:175
3442622994426,18cyclictest0-21swapper/509:12:215
3442622994426,0cyclictest0-21swapper/511:06:285
3442622994425,19cyclictest0-21swapper/508:00:145
344262399410,35cyclictest0-21swapper/607:25:166
3442621994122,19cyclictest0-21swapper/408:15:294
344262299402,19cyclictest0-21swapper/510:45:155
344262099400,39cyclictest0-21swapper/310:00:163
344262399390,34cyclictest0-21swapper/609:40:176
3442621993920,0cyclictest601ktimers/408:31:224
3442620993920,19cyclictest871-21mta-sts-daemon07:30:143
344262399380,19cyclictest0-21swapper/608:55:166
344262299370,18cyclictest0-21swapper/512:20:155
3442621993737,0cyclictest0-21swapper/411:29:494
3442621993717,2cyclictest3571357-21strings10:55:224
3442621993715,21cyclictest1-21systemd07:40:014
3442621993714,19cyclictest3565307-21if_eno210:45:154
344261999370,18cyclictest0-21swapper/210:00:162
344261999370,18cyclictest0-21swapper/209:35:172
344262399360,17cyclictest0-21swapper/610:10:166
3442621993635,0cyclictest870-21mta-sts-daemon08:13:074
3442621993634,2cyclictest362-21jbd2/sda2-809:29:384
344262099360,17cyclictest0-21swapper/308:20:173
344262099360,17cyclictest0-21swapper/307:20:173
344262399350,15cyclictest0-21swapper/612:20:166
344262399350,15cyclictest0-21swapper/609:05:156
344262299350,16cyclictest0-21swapper/509:30:155
344262299350,15cyclictest0-21swapper/510:25:165
3442621993535,0cyclictest3442949-21kworker/u32:3+flush-8:007:12:014
3442621993515,20cyclictest0-21swapper/409:04:214
3442621993515,20cyclictest0-21swapper/408:42:174
3442621993515,19cyclictest3619445-21ld12:20:194
3442621993515,19cyclictest0-21swapper/412:05:384
3442621993515,19cyclictest0-21swapper/411:01:334
3442621993515,19cyclictest0-21swapper/410:20:584
3442621993515,19cyclictest0-21swapper/410:16:134
3442621993515,19cyclictest0-21swapper/409:50:134
3442621993515,19cyclictest0-21swapper/409:30:294
3442621993515,19cyclictest0-21swapper/409:16:534
3442621993515,19cyclictest0-21swapper/409:05:294
3442621993515,19cyclictest0-21swapper/408:25:454
3442621993515,19cyclictest0-21swapper/407:31:304
3442621993514,21cyclictest3527741-21kworker/u32:0+events_unbound11:15:454
3442621993514,21cyclictest3499648-21kworker/u32:5+events_unbound08:52:574
3442621993514,20cyclictest0-21swapper/410:51:054
344262199350,34cyclictest0-21swapper/411:49:094
344262099350,15cyclictest0-21swapper/309:25:183
344261999350,16cyclictest0-21swapper/211:05:142
344262499340,15cyclictest0-21swapper/709:22:207
3442623993412,0cyclictest0-21swapper/611:40:166
3442623993411,19cyclictest0-21swapper/608:25:166
344262399340,15cyclictest0-21swapper/611:55:176
344262399340,15cyclictest0-21swapper/609:45:156
344262399340,15cyclictest0-21swapper/609:15:156
344262399340,15cyclictest0-21swapper/608:50:166
3442622993415,19cyclictest0-21swapper/511:30:155
3442622993414,20cyclictest0-21swapper/510:00:235
3442622993414,19cyclictest0-21swapper/510:15:215
344262299340,15cyclictest0-21swapper/511:50:165
344262299340,15cyclictest0-21swapper/509:55:165
3442621993434,0cyclictest0-21swapper/407:40:494
3442621993415,19cyclictest3472420-21ntp_states08:00:194
3442621993415,19cyclictest0-21swapper/412:36:024
3442621993415,19cyclictest0-21swapper/412:36:014
3442621993415,19cyclictest0-21swapper/412:25:074
3442621993415,19cyclictest0-21swapper/412:10:174
3442621993415,19cyclictest0-21swapper/411:56:294
3442621993415,19cyclictest0-21swapper/411:20:294
3442621993415,19cyclictest0-21swapper/411:05:054
3442621993415,19cyclictest0-21swapper/410:40:494
3442621993415,19cyclictest0-21swapper/410:35:574
3442621993415,19cyclictest0-21swapper/410:00:454
3442621993415,19cyclictest0-21swapper/409:46:254
3442621993415,19cyclictest0-21swapper/409:35:184
3442621993415,19cyclictest0-21swapper/409:10:094
3442621993415,19cyclictest0-21swapper/408:45:114
3442621993415,19cyclictest0-21swapper/408:22:554
3442621993415,19cyclictest0-21swapper/407:45:534
3442621993415,19cyclictest0-21swapper/407:20:054
3442621993415,0cyclictest0-21swapper/412:00:054
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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