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2026-08-31 - 22:37
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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 Aug 31, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
794937999052,38cyclictest171ktimers/012:25:160
794939997945,34cyclictest0-21swapper/211:25:002
794941997758,0cyclictest0-21swapper/408:45:264
794941997436,19cyclictest919811-21/usr/sbin/munin10:55:184
794941997333,39cyclictest0-21swapper/408:51:004
794941997233,39cyclictest0-21swapper/408:05:394
794941997214,39cyclictest799496-21python307:15:244
794939997253,19cyclictest411rcuc/208:00:152
794941997133,38cyclictest0-21swapper/411:27:284
794941997112,59cyclictest0-21swapper/410:30:594
794941996911,39cyclictest832245-21ntpq08:15:204
794941996849,19cyclictest0-21swapper/411:53:374
794942996666,0cyclictest0-21swapper/508:15:165
794941996527,19cyclictest908795-21if_eno510:35:164
79494399633,59cyclictest79-21ksoftirqd/609:25:146
794941996324,39cyclictest0-21swapper/410:16:184
794941996245,17cyclictest601ktimers/407:30:244
79494199591,39cyclictest883841-21/usr/sbin/munin09:50:144
794941995819,39cyclictest0-21swapper/412:00:044
794941995719,19cyclictest947801-21ntpq11:45:204
794941995519,36cyclictest0-21swapper/410:24:164
794941995519,35cyclictest0-21swapper/407:25:084
794941995517,19cyclictest972355-21ld12:30:204
794941995517,19cyclictest972355-21ld12:30:204
794941995517,19cyclictest817763-21perl07:50:164
794941995517,19cyclictest1-21systemd09:15:024
79494199550,55cyclictest0-21swapper/408:31:224
794941995435,19cyclictest821068-21ntpq07:55:204
794941995419,35cyclictest0-21swapper/411:40:284
794941995419,35cyclictest0-21swapper/408:10:324
794941995419,35cyclictest0-21swapper/407:41:524
794941995419,34cyclictest0-21swapper/411:30:084
794941995419,15cyclictest0-21swapper/412:35:444
794941995419,15cyclictest0-21swapper/412:06:484
794941995419,15cyclictest0-21swapper/411:35:324
794941995419,15cyclictest0-21swapper/411:03:044
794941995419,15cyclictest0-21swapper/410:53:284
794941995419,15cyclictest0-21swapper/410:46:364
794941995419,15cyclictest0-21swapper/410:00:244
794941995419,15cyclictest0-21swapper/409:19:144
794941995419,15cyclictest0-21swapper/408:56:364
794941995419,15cyclictest0-21swapper/408:40:364
794941995419,15cyclictest0-21swapper/408:37:194
794941995419,15cyclictest0-21swapper/408:25:564
794941995419,15cyclictest0-21swapper/408:24:404
794941995419,15cyclictest0-21swapper/408:24:404
794941995419,15cyclictest0-21swapper/407:48:384
794941995417,18cyclictest885590-21kworker/4:010:10:144
794941995416,19cyclictest970060-21cat12:25:234
794941995414,39cyclictest0-21swapper/412:17:044
794941995334,19cyclictest0-21swapper/409:09:324
794941995333,19cyclictest0-21swapper/411:06:084
794941995319,34cyclictest0-21swapper/411:55:104
794941995319,34cyclictest0-21swapper/409:43:524
794941995319,34cyclictest0-21swapper/409:36:444
794941995319,34cyclictest0-21swapper/407:11:404
794941995319,15cyclictest0-21swapper/412:11:084
794941995319,15cyclictest0-21swapper/410:27:004
794941995319,15cyclictest0-21swapper/409:56:354
794941995319,15cyclictest0-21swapper/409:27:084
794941995314,39cyclictest0-21swapper/411:19:144
794941995314,39cyclictest0-21swapper/411:13:044
794941995314,39cyclictest0-21swapper/410:05:254
794941995314,39cyclictest0-21swapper/409:47:484
794941995314,39cyclictest0-21swapper/409:31:164
794941995314,39cyclictest0-21swapper/409:22:194
794941995314,39cyclictest0-21swapper/409:02:124
794941995314,39cyclictest0-21swapper/408:01:524
794941995314,39cyclictest0-21swapper/407:22:364
794941995314,19cyclictest0-21swapper/411:20:524
79494199530,34cyclictest810940-21taskset07:36:324
794938995314,19cyclictest0-21swapper/108:20:161
794938995314,19cyclictest0-21swapper/108:20:161
794941995233,19cyclictest0-21swapper/412:21:004
794941995233,19cyclictest0-21swapper/410:41:244
794943995114,18cyclictest771rcuc/610:25:156
794939995113,19cyclictest0-21swapper/209:20:142
794938995112,38cyclictest0-21swapper/109:30:131
794943994930,1cyclictest191rcu_preempt07:50:176
794943994810,19cyclictest0-21swapper/609:55:166
79494399478,39cyclictest0-21swapper/611:55:156
794943994628,18cyclictest0-21swapper/612:15:166
794943994628,18cyclictest0-21swapper/609:15:156
79493899468,19cyclictest0-21swapper/108:35:151
79493899457,19cyclictest0-21swapper/109:25:141
79494399444,39cyclictest79-21ksoftirqd/611:50:176
794943994426,18cyclictest0-21swapper/607:10:146
79493899446,19cyclictest0-21swapper/109:45:171
79493799446,19cyclictest0-21swapper/010:45:160
794938994224,18cyclictest0-21swapper/108:50:161
79494399413,19cyclictest0-21swapper/612:25:166
79493799410,1cyclictest0-21swapper/008:50:210
79493899400,39cyclictest0-21swapper/108:15:151
794942993937,1cyclictest871-21mta-sts-daemon12:35:225
79493899390,20cyclictest0-21swapper/107:10:151
79493799390,20cyclictest0-21swapper/009:15:150
79494399380,19cyclictest0-21swapper/610:15:156
79493999380,19cyclictest0-21swapper/210:55:172
79493899380,19cyclictest0-21swapper/109:35:161
794942993718,0cyclictest0-21swapper/507:30:175
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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