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2025-09-04 - 07:01
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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 50 highest latencies:
System rack0slot4.osadl.org (updated Thu Sep 04, 2025 00:46:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41308192355311,15sleep70-21swapper/719:08:3913
41307002355310,15sleep40-21swapper/419:07:0010
41308502354312,14sleep140-21swapper/1419:09:026
41306372349308,14sleep10-21swapper/119:06:081
41306382346336,6sleep20-21swapper/219:06:098
41308252343320,15sleep120-21swapper/1219:08:434
41308492342319,15sleep130-21swapper/1319:09:015
41308282342319,15sleep150-21swapper/1519:08:477
41306732342320,14sleep00-21swapper/019:06:390
41307812341316,16sleep50-21swapper/519:08:0511
41305982340318,14sleep60-21swapper/619:05:4112
41306612339317,14sleep80-21swapper/819:06:3114
41306222339314,16sleep30-21swapper/319:05:539
41306472338316,14sleep110-21swapper/1119:06:183
41306452335313,15sleep90-21swapper/919:06:1515
41308462334312,15sleep100-21swapper/1019:08:582
413129599293292,1cyclictest22380-21nodev-device-ev20:45:160
413131599285284,1cyclictest4160588-21nodev-device-ev19:40:1912
413132199275274,1cyclictest0-21swapper/820:45:1614
4131325992550,254cyclictest52299-21daemon-init21:20:1715
4131305992500,249cyclictest22347-21daemon-init20:45:169
413130599246246,0cyclictest0-21swapper/321:55:179
413130599246246,0cyclictest0-21swapper/321:55:179
413133199237236,1cyclictest82245-21nodev-device-ev21:55:173
413133199237236,1cyclictest82245-21nodev-device-ev21:55:173
413134199199199,0cyclictest0-21swapper/1419:40:196
413134599180180,0cyclictest0-21swapper/1521:20:177
413131799164163,1cyclictest52330-21nodev-device-ev21:20:1613
413130599134134,0cyclictest0-21swapper/322:40:179
413133199125124,1cyclictest120735-21nodev-device-ev22:40:173
41313179910099,1cyclictest0-21swapper/700:15:1613
413134199950,94cyclictest0-21swapper/1400:20:166
4131312999594,1cyclictest0-21swapper/523:10:1811
4131295999392,1cyclictest56620-21nodev-device-ev21:25:190
4131345999290,1cyclictest866-21nodev-device-ev20:20:207
4131312998988,1cyclictest0-21swapper/521:40:1711
4131317998786,1cyclictest4181981-21nodev-device-ev20:05:1813
4131295998786,1cyclictest0-21swapper/020:40:180
4131341998685,1cyclictest0-21swapper/1422:45:196
4131335998382,1cyclictest35194-21nodev-device-ev21:00:184
4131337998180,1cyclictest0-21swapper/1320:25:215
4131315998079,1cyclictest137842-21nodev-device-ev23:00:1812
4131321997574,1cyclictest0-21swapper/821:25:1914
4131317997473,1cyclictest0-21swapper/720:20:2013
4131312997473,1cyclictest0-21swapper/519:55:1511
4131325997170,1cyclictest4147770-21nodev-device-ev19:25:1815
4131327997069,1cyclictest0-21swapper/1022:00:152
4131327997069,1cyclictest0-21swapper/1022:00:152
4131321996968,1cyclictest18099-21nodev-device-ev20:40:1814
4131345996463,1cyclictest99375-21nodev-device-ev22:15:217
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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