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2026-07-04 - 17:38
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Sat Jul 04, 2026 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227688999234,38cyclictest359643-21cat11:05:244
227688997519,17cyclictest0-21swapper/409:36:104
227688997436,19cyclictest362-21jbd2/sda2-811:20:054
227688997434,39cyclictest221428-21kworker/0:107:11:294
227688997335,37cyclictest1086-21runrttasks12:00:504
227688997313,59cyclictest0-21swapper/411:12:594
227688997214,39cyclictest273087-21sed08:30:174
227688997133,19cyclictest354219-21cat10:55:234
227688997133,18cyclictest0-21swapper/408:25:124
227688997133,18cyclictest0-21swapper/407:40:334
227688997113,39cyclictest305253-21kworker/u32:3+flush-8:009:30:144
227688997031,19cyclictest0-21swapper/408:55:064
227688996910,59cyclictest0-21swapper/407:38:564
227688996810,19cyclictest0-21swapper/412:28:004
227688996810,19cyclictest0-21swapper/407:32:484
22768499689,19cyclictest0-21swapper/010:35:170
22768899679,19cyclictest0-21swapper/411:51:484
22768899679,19cyclictest0-21swapper/411:45:524
22768899679,19cyclictest0-21swapper/409:19:484
22769199668,39cyclictest0-21swapper/707:25:177
22768899668,58cyclictest0-21swapper/410:37:084
227688996324,19cyclictest0-21swapper/408:35:124
22768899613,39cyclictest376042-21ntpq11:35:204
22768899590,20cyclictest325884-21ntpq10:05:204
227686995921,19cyclictest411rcuc/212:00:152
227688995820,19cyclictest591rcuc/412:30:224
227688995820,19cyclictest338382-21cut10:30:124
22768899580,39cyclictest363371-21/usr/sbin/munin11:15:244
227686995820,38cyclictest0-21swapper/207:45:152
227688995719,18cyclictest0-21swapper/412:22:224
22768899570,55cyclictest227521-21kworker/u32:2+events_unbound07:59:064
22768899570,38cyclictest332983-21basename10:20:124
227688995616,39cyclictest238786-21munin-run07:30:014
227691995517,19cyclictest0-21swapper/708:15:167
227688995519,35cyclictest0-21swapper/409:28:054
227688995519,19cyclictest0-21swapper/412:09:444
227688995517,19cyclictest328442-21sed10:10:174
227688995513,39cyclictest349838-21aten2.4-expect10:50:124
227691995415,20cyclictest0-21swapper/708:55:167
227688995436,0cyclictest332826-21kworker/u32:4-ext4-rsv-conversion11:30:134
227688995419,35cyclictest0-21swapper/411:25:564
227688995419,35cyclictest0-21swapper/410:25:064
227688995419,35cyclictest0-21swapper/409:50:394
227688995419,35cyclictest0-21swapper/409:14:104
227688995419,35cyclictest0-21swapper/409:14:094
227688995419,35cyclictest0-21swapper/408:41:114
227688995419,35cyclictest0-21swapper/408:00:444
227688995419,34cyclictest0-21swapper/408:21:564
227688995419,15cyclictest0-21swapper/412:17:154
227688995419,15cyclictest0-21swapper/411:00:464
227688995419,15cyclictest0-21swapper/408:51:264
227688995419,15cyclictest0-21swapper/408:11:524
227688995416,19cyclictest591rcuc/408:15:174
227688995416,19cyclictest280881-21/usr/sbin/munin08:45:164
227688995416,19cyclictest235232-21sed07:20:224
227688995415,19cyclictest0-21swapper/410:04:054
227688995414,40cyclictest0-21swapper/412:36:084
227688995414,40cyclictest0-21swapper/409:45:284
227688995414,39cyclictest0-21swapper/410:16:224
227688995414,19cyclictest0-21swapper/409:05:324
22768899540,34cyclictest0-21swapper/407:50:434
227688995333,20cyclictest348180-21cut10:45:194
227688995319,34cyclictest0-21swapper/412:11:124
227688995319,34cyclictest0-21swapper/411:56:014
227688995319,15cyclictest0-21swapper/409:58:324
227688995319,15cyclictest0-21swapper/409:21:104
227688995319,15cyclictest0-21swapper/409:21:094
227688995319,15cyclictest0-21swapper/408:09:124
227688995314,39cyclictest0-21swapper/409:41:404
227688995314,39cyclictest0-21swapper/407:48:264
227688995314,19cyclictest875-21mta-sts-daemon07:17:024
227688995314,19cyclictest601ktimers/411:40:304
227688995314,19cyclictest0-21swapper/410:44:444
227688995314,19cyclictest0-21swapper/409:01:204
227688995314,19cyclictest0-21swapper/409:01:204
227686995314,38cyclictest0-21swapper/209:40:162
227686995213,39cyclictest0-21swapper/210:55:172
227684995214,19cyclictest0-21swapper/009:25:160
227691995113,19cyclictest0-21swapper/707:40:157
227684995113,19cyclictest0-21swapper/008:00:160
227691995012,19cyclictest0-21swapper/708:50:177
227691995011,39cyclictest0-21swapper/710:25:197
227690995012,19cyclictest0-21swapper/608:40:166
227686995031,19cyclictest43-21ksoftirqd/212:15:152
227686995011,39cyclictest0-21swapper/208:25:162
227684995031,0cyclictest0-21swapper/008:30:150
227691994910,38cyclictest0-21swapper/709:45:167
227687994911,38cyclictest0-21swapper/312:25:173
227686994910,19cyclictest0-21swapper/207:50:152
227684994930,19cyclictest0-21swapper/010:05:160
227691994830,18cyclictest871ktimers/707:35:167
227690994830,0cyclictest0-21swapper/612:30:166
22769199457,19cyclictest0-21swapper/711:00:157
22768699457,38cyclictest0-21swapper/211:05:162
22768499457,19cyclictest0-21swapper/009:10:160
22768499457,19cyclictest0-21swapper/009:10:150
22768499455,39cyclictest0-21swapper/011:10:150
22768499435,19cyclictest0-21swapper/008:50:160
22769199424,19cyclictest405644-21taskset12:30:157
22769199424,19cyclictest0-21swapper/710:35:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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