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2025-11-14 - 23:07
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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 rack0slot4.osadl.org (updated Fri Nov 14, 2025 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4646892358349,6sleep80-21swapper/819:08:0814
4646962353310,15sleep150-21swapper/1519:08:167
4645962349326,15sleep120-21swapper/1219:06:514
4648022347335,8sleep40-21swapper/419:09:4110
4647632346322,15sleep60-21swapper/619:09:1112
4646922346324,14sleep110-21swapper/1119:08:113
4646662346323,15sleep20-21swapper/219:07:478
4645522346323,15sleep100-21swapper/1019:06:182
4645322345323,14sleep70-21swapper/719:05:5913
4648132342319,15sleep130-21swapper/1319:09:505
4645702342320,14sleep50-21swapper/519:06:2911
4647412341319,14sleep10-21swapper/119:08:501
4648222340316,15sleep30-21swapper/319:09:569
4646542340317,14sleep90-21swapper/919:07:3715
4648142339316,15sleep140-21swapper/1419:09:526
4645062339317,14sleep00-21swapper/019:05:350
46528499312311,1cyclictest507239-21nodev-device-ev19:55:187
46527799295293,1cyclictest690852-21nodev-device-ev23:30:205
46525899293293,0cyclictest0-21swapper/719:55:1813
46526899279278,1cyclictest537129-21nodev-device-ev20:30:222
46524799271270,1cyclictest729284-21nodev-device-ev00:15:179
46525599241240,1cyclictest0-21swapper/523:30:2111
46524599184184,0cyclictest0-21swapper/220:30:228
46527199167167,0cyclictest0-21swapper/1100:15:163
46528199158158,0cyclictest0-21swapper/1400:00:186
46525699126125,1cyclictest716468-21nodev-device-ev00:00:1812
46528199102100,1cyclictest524336-21nodev-device-ev20:15:206
465256999695,1cyclictest554202-21nodev-device-ev20:50:2112
465255999695,1cyclictest0-21swapper/520:25:1711
465266999391,1cyclictest0-21swapper/900:05:2215
465238999392,1cyclictest0-21swapper/022:25:170
465256999089,1cyclictest0-21swapper/619:10:1912
465256998079,1cyclictest0-21swapper/600:10:2112
465266997877,1cyclictest669519-21nodev-device-ev23:05:1915
465284997675,1cyclictest618270-21nodev-device-ev22:05:197
465281997574,1cyclictest737833-21nodev-device-ev00:25:226
465284997472,1cyclictest0-21swapper/1523:40:217
465261997170,1cyclictest481628-21nodev-device-ev19:25:1814
465256996968,1cyclictest0-21swapper/620:15:2112
465266996867,1cyclictest0-21swapper/922:35:2015
465266996360,3cyclictest0-21swapper/922:50:2015
465266996360,3cyclictest0-21swapper/922:50:2015
465277996261,1cyclictest515799-21nodev-device-ev20:05:215
465268995958,1cyclictest470059-21nodev-device-ev19:15:002
465258995857,1cyclictest851rcuc/722:05:1813
465258995654,1cyclictest699391-21nodev-device-ev23:40:2113
465238995453,1cyclictest0-21swapper/019:25:170
465261995150,1cyclictest596919-21nodev-device-ev21:40:2114
465268994847,1cyclictest648139-21nodev-device-ev22:40:182
465266994240,2cyclictest660958-21nodev-device-ev22:55:1915
465266994240,2cyclictest660958-21nodev-device-ev22:55:1815
465256994242,0cyclictest0-21swapper/600:25:2112
465261993837,1cyclictest0-21swapper/819:20:2014
465281993635,1cyclictest1055-1kworker/u33:1+i915_flip20:14:596
465245993433,1cyclictest0-21swapper/220:40:218
465238993433,1cyclictest0-21swapper/021:40:220
465250993231,1cyclictest682310-21nodev-device-ev23:20:1810
465245993126,4cyclictest2045-21snmpd22:03:288
465277993029,1cyclictest0-21swapper/1320:10:235
46527399300,30cyclictest0-21swapper/1200:05:194
46526699300,29cyclictest0-21swapper/923:25:1815
465245993026,4cyclictest2045-21snmpd00:25:148
465245992924,4cyclictest2045-21snmpd00:24:328
46524599290,26cyclictest0-21swapper/220:51:328
46524599290,26cyclictest0-21swapper/219:25:208
46524599290,0cyclictest0-21swapper/221:37:108
465284992827,1cyclictest2045-21snmpd21:30:317
465284992827,1cyclictest2045-21snmpd19:35:557
465284992827,1cyclictest2045-21snmpd19:35:557
46528199280,1cyclictest0-21swapper/1423:37:556
46527799280,27cyclictest0-21swapper/1322:18:585
46527799280,27cyclictest0-21swapper/1321:56:275
46527799280,27cyclictest0-21swapper/1320:48:445
46527399280,27cyclictest0-21swapper/1200:32:394
465271992827,1cyclictest2045-21snmpd22:57:453
465271992827,1cyclictest2045-21snmpd22:57:453
46527199280,27cyclictest0-21swapper/1121:25:153
46526899283,14cyclictest0-21swapper/1023:42:312
465268992826,1cyclictest2045-21snmpd21:36:272
46526899280,27cyclictest0-21swapper/1022:01:162
46526899280,26cyclictest0-21swapper/1000:20:192
46526699280,27cyclictest0-21swapper/919:47:3015
465261992826,1cyclictest0-21swapper/822:53:3314
465261992826,1cyclictest0-21swapper/822:53:3314
46526199280,27cyclictest0-21swapper/821:14:5714
465258992827,1cyclictest2045-21snmpd19:11:1513
46525899280,27cyclictest0-21swapper/722:25:1313
46525899280,27cyclictest0-21swapper/700:08:2513
46525699280,27cyclictest0-21swapper/620:25:0812
465250992827,1cyclictest0-21swapper/419:55:5110
46525099280,27cyclictest0-21swapper/421:55:1410
465245992827,1cyclictest2045-21snmpd23:27:468
465245992827,1cyclictest0-21swapper/223:58:168
465245992823,2cyclictest0-21swapper/222:58:448
465245992823,2cyclictest0-21swapper/222:58:448
465245992821,2cyclictest0-21swapper/223:53:188
46524599280,27cyclictest0-21swapper/223:32:128
46524599280,27cyclictest0-21swapper/221:42:508
46524599280,27cyclictest0-21swapper/221:31:358
46524599280,27cyclictest0-21swapper/221:08:228
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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