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2026-05-23 - 02:33
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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 Fri May 22, 2026 12:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
340681099802,19cyclictest0-21swapper/709:45:157
340680799790,20cyclictest0-21swapper/409:45:154
3406805997613,40cyclictest3508114-21vmstat10:10:232
3406810997214,38cyclictest3406802-21cyclictest12:00:167
3406805997255,17cyclictest0-21swapper/210:35:022
3406805997235,19cyclictest871-21mta-sts-daemon09:29:052
3406805997235,18cyclictest411rcuc/208:45:132
3406805997235,18cyclictest411rcuc/208:45:132
3406805997232,39cyclictest0-21swapper/208:19:132
3406805997133,38cyclictest0-21swapper/212:24:522
3406805997113,39cyclictest3487142-21fschecks_time09:35:152
3406805996930,20cyclictest3432983-21/usr/sbin/munin07:55:192
3406805996910,40cyclictest3511314-21munin-run10:20:022
3406805996910,19cyclictest0-21swapper/209:33:022
3406805996850,18cyclictest0-21swapper/210:53:212
3406805996729,19cyclictest411rcuc/207:10:132
3406803996647,19cyclictest0-21swapper/009:35:170
340680599657,39cyclictest3532257-21ntpq10:55:192
3406805996547,18cyclictest0-21swapper/211:05:012
340680599653,40cyclictest236199-21snmpd10:08:082
3406805996526,39cyclictest0-21swapper/207:38:092
3406805996427,19cyclictest362-21jbd2/sda2-812:05:122
3406805996425,39cyclictest0-21swapper/208:09:572
340680399634,59cyclictest3519398-21kworker/0:2+events_power_efficient11:17:430
340680599624,39cyclictest3410703-21cat07:15:182
3406805996138,19cyclictest3558647-21cat11:45:002
340680599613,39cyclictest0-21swapper/212:01:442
340680599613,39cyclictest0-21swapper/208:58:532
3406805996123,19cyclictest0-21swapper/211:05:302
340680499601,59cyclictest0-21swapper/110:00:141
340680699570,18cyclictest0-21swapper/309:05:153
3406805995718,39cyclictest362-21jbd2/sda2-811:57:122
3406805995618,19cyclictest3513789-21chrt10:23:192
3406805995618,19cyclictest3454795-21ntpq08:35:222
3406805995536,19cyclictest3470836-21hddtemp_smartct09:05:152
3406805995536,19cyclictest0-21swapper/208:25:142
3406809995414,39cyclictest0-21swapper/608:45:176
3406809995414,39cyclictest0-21swapper/608:45:166
3406805995419,15cyclictest0-21swapper/212:38:442
3406805995419,15cyclictest0-21swapper/209:21:222
3406805995415,39cyclictest0-21swapper/208:21:532
3406808995335,0cyclictest0-21swapper/509:20:155
3406805995332,19cyclictest0-21swapper/211:29:032
3406805995332,19cyclictest0-21swapper/211:12:502
3406805995332,19cyclictest0-21swapper/208:34:112
3406805995319,34cyclictest0-21swapper/208:10:532
3406805995319,15cyclictest0-21swapper/210:49:092
3406805995314,39cyclictest0-21swapper/210:38:052
3406805995314,39cyclictest0-21swapper/210:26:132
3406805995314,39cyclictest0-21swapper/210:01:372
3406805995314,39cyclictest0-21swapper/209:41:412
3406805995314,39cyclictest0-21swapper/209:02:222
3406805995314,39cyclictest0-21swapper/209:02:212
3406805995314,39cyclictest0-21swapper/207:52:532
3406805995314,19cyclictest0-21swapper/211:21:042
3406805995312,21cyclictest3418546-21expr07:30:132
3406809995213,39cyclictest0-21swapper/610:35:156
3406807995233,19cyclictest0-21swapper/409:30:154
3406805995233,19cyclictest0-21swapper/211:46:562
3406805995233,19cyclictest0-21swapper/209:12:532
3406805995233,19cyclictest0-21swapper/207:43:332
3406805995233,0cyclictest0-21swapper/212:11:332
3406805995230,19cyclictest0-21swapper/208:01:562
3406805995213,39cyclictest0-21swapper/211:37:052
3406805995213,39cyclictest0-21swapper/209:46:452
3406805995213,39cyclictest0-21swapper/207:49:412
3406805995213,39cyclictest0-21swapper/207:26:382
3406805995211,40cyclictest3461735-21/usr/sbin/munin08:50:172
3406804995214,19cyclictest0-21swapper/109:05:151
3406806995113,38cyclictest0-21swapper/308:40:163
3406806995113,38cyclictest0-21swapper/308:40:163
3406805995132,19cyclictest0-21swapper/212:15:322
3406805995132,19cyclictest0-21swapper/207:21:052
3406805995132,18cyclictest3496434-21timerandwakeup09:50:232
3406805995130,19cyclictest0-21swapper/208:43:312
3406805995130,19cyclictest0-21swapper/208:43:312
3406805995112,39cyclictest0-21swapper/211:19:172
3406805995112,19cyclictest0-21swapper/210:41:542
3406807995011,39cyclictest0-21swapper/408:35:174
3406805995031,19cyclictest0-21swapper/209:15:252
340680999490,48cyclictest0-21swapper/611:05:156
3406805994930,19cyclictest0-21swapper/212:25:122
3406805994930,19cyclictest0-21swapper/211:31:562
3406805994930,19cyclictest0-21swapper/209:57:182
3406805994930,0cyclictest0-21swapper/212:34:562
3406803994911,19cyclictest0-21swapper/011:50:150
3406809994810,38cyclictest0-21swapper/608:20:166
340681099479,19cyclictest0-21swapper/709:10:157
340680999478,38cyclictest0-21swapper/610:55:156
340680499479,38cyclictest0-21swapper/108:10:161
340680999469,18cyclictest3567011-21kworker/u32:4+events_unbound12:20:156
340680999468,19cyclictest0-21swapper/611:25:146
340680599467,39cyclictest0-21swapper/211:54:002
340680999457,19cyclictest0-21swapper/611:30:166
340680399457,38cyclictest0-21swapper/007:55:160
340681099445,39cyclictest0-21swapper/709:20:147
3406803994425,19cyclictest3412600-21kworker/u32:1+writeback07:35:270
340680999435,38cyclictest0-21swapper/607:50:156
340680399434,38cyclictest0-21swapper/010:20:150
3406803994325,18cyclictest871-21mta-sts-daemon07:30:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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