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2026-04-06 - 17:08
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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 Mon Apr 06, 2026 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25724679910549,18cyclictest511ktimers/311:20:153
2572466998426,58cyclictest2665045-21sendmail_mailst09:55:222
2572466998426,58cyclictest2665045-21sendmail_mailst09:55:222
2572466997617,39cyclictest2598815-21ntpq07:55:182
2572466997315,39cyclictest2703622-21ld11:05:202
2572464997354,19cyclictest171ktimers/011:00:150
2572466997133,38cyclictest0-21swapper/208:38:402
2572466997112,39cyclictest2575051-21taskset07:14:522
2572466997032,38cyclictest0-21swapper/209:26:242
2572468996911,19cyclictest0-21swapper/411:30:164
2572466996929,39cyclictest0-21swapper/211:32:522
257246699689,39cyclictest0-21swapper/210:10:282
257246699679,39cyclictest265-1kworker/2:1H-kblockd12:04:402
257246699679,19cyclictest0-21swapper/209:51:382
2572470996626,39cyclictest0-21swapper/610:10:156
2572467996244,0cyclictest0-21swapper/307:55:153
257246699613,39cyclictest2592020-21munin-run07:45:022
257246699601,39cyclictest2725373-21ntpq11:45:202
2572466995919,39cyclictest101850irq/42-eno2-TxRx-310:15:382
2572466995819,38cyclictest2729483-21munin-run11:55:022
2572466995719,19cyclictest2594742-21munin-run07:50:022
2572466995719,19cyclictest2583818-21munin-run07:30:022
2572466995638,18cyclictest421ktimers/209:38:382
2572466995619,18cyclictest0-21swapper/207:38:342
2572466995618,19cyclictest2708295-21/usr/sbin/munin11:15:142
2572466995517,19cyclictest2584134-21cut07:30:122
2572466995516,19cyclictest101850irq/42-eno2-TxRx-310:54:582
2572466995419,35cyclictest0-21swapper/212:09:292
2572466995419,34cyclictest0-21swapper/211:38:442
2572466995419,15cyclictest0-21swapper/209:17:002
2572466995419,15cyclictest0-21swapper/209:14:562
2572466995416,19cyclictest85850irq/37-eno1-TxRx-311:27:362
2572466995414,39cyclictest0-21swapper/209:30:122
257246699540,54cyclictest0-21swapper/212:15:242
2572466995334,19cyclictest101850irq/42-eno2-TxRx-308:20:022
2572466995319,15cyclictest0-21swapper/209:44:562
2572466995319,15cyclictest0-21swapper/209:44:562
2572466995319,15cyclictest0-21swapper/208:54:132
2572466995319,15cyclictest0-21swapper/208:28:442
2572466995315,19cyclictest411rcuc/212:20:142
2572466995314,39cyclictest0-21swapper/210:55:342
2572466995314,39cyclictest0-21swapper/208:05:082
2572464995315,19cyclictest0-21swapper/008:15:160
2572464995313,38cyclictest0-21swapper/008:40:160
2572469995214,19cyclictest0-21swapper/508:35:145
2572466995233,19cyclictest0-21swapper/210:42:402
2572466995233,19cyclictest0-21swapper/210:30:002
2572466995233,19cyclictest0-21swapper/210:08:012
2572466995233,19cyclictest0-21swapper/209:06:362
2572466995233,19cyclictest0-21swapper/208:58:242
2572466995233,19cyclictest0-21swapper/208:41:522
2572466995233,19cyclictest0-21swapper/208:10:402
2572466995218,34cyclictest0-21swapper/209:45:202
2572466995214,19cyclictest0-21swapper/212:40:022
2572466995214,19cyclictest0-21swapper/210:33:562
2572466995213,39cyclictest0-21swapper/211:21:322
2572466995213,39cyclictest0-21swapper/210:45:202
2572466995213,39cyclictest0-21swapper/208:30:182
2572466995210,6cyclictest2706387-21awk11:10:222
2572464995214,19cyclictest0-21swapper/009:05:170
2572466995133,18cyclictest0-21swapper/211:42:442
2572466995133,18cyclictest0-21swapper/210:04:562
2572466995133,18cyclictest0-21swapper/209:02:322
2572466995132,19cyclictest0-21swapper/207:20:442
2572466995112,39cyclictest0-21swapper/211:55:262
2572466995112,39cyclictest0-21swapper/208:45:102
2572464995113,38cyclictest0-21swapper/009:15:150
2572466995032,18cyclictest0-21swapper/212:26:522
2572466995032,18cyclictest0-21swapper/210:20:362
2572466995032,18cyclictest0-21swapper/207:20:032
2572466995031,19cyclictest0-21swapper/209:21:562
2572466995031,19cyclictest0-21swapper/208:21:162
2572466995012,19cyclictest0-21swapper/212:30:122
2572466995011,39cyclictest0-21swapper/212:12:342
2572466995011,39cyclictest0-21swapper/211:02:302
2572466995011,39cyclictest0-21swapper/210:37:082
2572466995011,39cyclictest0-21swapper/207:53:542
2572468994931,18cyclictest0-21swapper/410:55:164
2572468994911,19cyclictest0-21swapper/407:15:154
2572466994931,18cyclictest0-21swapper/208:01:522
257246799489,39cyclictest0-21swapper/308:20:153
2572467994848,0cyclictest0-21swapper/311:05:163
257247199479,38cyclictest0-21swapper/707:55:157
257246999479,38cyclictest0-21swapper/508:00:165
257246799479,18cyclictest0-21swapper/309:25:173
257246499478,39cyclictest0-21swapper/009:40:130
257246499478,39cyclictest0-21swapper/009:40:130
257246999467,39cyclictest0-21swapper/509:25:175
257246899467,39cyclictest0-21swapper/408:55:174
257247199457,19cyclictest0-21swapper/710:35:177
257247199446,19cyclictest0-21swapper/711:20:157
257246799446,19cyclictest0-21swapper/309:20:153
2572467994425,0cyclictest0-21swapper/310:35:163
257246599446,19cyclictest0-21swapper/111:05:151
257247099435,19cyclictest0-21swapper/608:05:166
257246499435,19cyclictest0-21swapper/010:30:150
257247199424,19cyclictest0-21swapper/708:30:157
257247099422,40cyclictest0-21swapper/610:00:166
257246799424,38cyclictest0-21swapper/312:15:173
257246499424,19cyclictest0-21swapper/008:20:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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