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2025-11-21 - 07:10
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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 21, 2025 00:46:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13132272374367,4sleep80-21swapper/819:05:4314
13133952369327,34sleep60-21swapper/619:07:3312
13132692364345,12sleep20-21swapper/219:06:098
13132552358314,16sleep90-21swapper/919:06:0015
13134542356314,33sleep50-21swapper/519:08:2011
13133362352329,15sleep70-21swapper/719:06:4613
13134762350340,6sleep100-21swapper/1019:08:422
13132672348308,14sleep00-21swapper/019:06:060
13134132345323,15sleep10-21swapper/119:07:441
13135412343318,16sleep150-21swapper/1519:09:357
13134602342320,14sleep110-21swapper/1119:08:273
13135402339316,15sleep140-21swapper/1419:09:346
13135392339316,14sleep130-21swapper/1319:09:335
13133472339316,15sleep120-21swapper/1219:06:514
13134342338314,15sleep30-21swapper/319:08:039
13132232338316,15sleep40-21swapper/419:05:3810
131396699318317,1cyclictest1407327-21nodev-device-ev20:55:2410
131399399294294,0cyclictest0-21swapper/1220:55:244
131397699272271,1cyclictest0-21swapper/720:45:2113
131398699214214,0cyclictest0-21swapper/1019:55:192
131398699214214,0cyclictest0-21swapper/1019:55:192
131395999164163,1cyclictest1356036-21nodev-device-ev19:55:198
131395999164163,1cyclictest1356036-21nodev-device-ev19:55:198
131400199127125,1cyclictest1398801-21nodev-device-ev20:45:217
1313999999695,1cyclictest1518493-21nodev-device-ev23:05:216
1313999999695,1cyclictest1518493-21nodev-device-ev23:05:216
1313974999593,1cyclictest1394514-21nodev-device-ev20:40:2112
1313974999493,1cyclictest0-21swapper/622:10:2412
1313989999291,1cyclictest0-21swapper/1120:30:243
1313974999291,1cyclictest1548423-21nodev-device-ev23:40:1812
1313966999291,1cyclictest1351766-21nodev-device-ev19:50:1710
1313999999089,1cyclictest1509917-21nodev-device-ev22:55:196
1313974997877,1cyclictest1334679-21nodev-device-ev19:30:1812
1313974997574,1cyclictest0-21swapper/621:15:1812
1313993996867,1cyclictest0-21swapper/1219:50:174
1314001996766,1cyclictest1364608-21nodev-device-ev20:05:187
1314001996766,1cyclictest1364608-21nodev-device-ev20:05:187
1313996996766,1cyclictest0-21swapper/1322:45:185
1313986995554,1cyclictest1569807-21nodev-device-ev00:05:172
1313956995352,1cyclictest1488560-21nodev-device-ev22:30:191
1313999995250,1cyclictest0-21swapper/1420:15:206
1313966994948,1cyclictest1539874-21nodev-device-ev23:30:1810
1313986994847,1cyclictest1330392-21nodev-device-ev19:25:182
1313966994241,1cyclictest1420187-21nodev-device-ev21:10:1810
1313996993635,1cyclictest1360298-21nodev-device-ev20:00:205
1313996993635,1cyclictest1360298-21nodev-device-ev20:00:205
1313974993535,0cyclictest0-21swapper/619:45:1612
1313964993433,1cyclictest0-21swapper/319:10:199
1313964993332,1cyclictest0-21swapper/321:20:209
1313959993230,0cyclictest0-21swapper/220:55:008
1313959993227,3cyclictest1400921-21sed20:50:008
1313959993226,3cyclictest1528435-21kworker/2:2-events00:00:008
131395999320,30cyclictest1317943-21kworker/2:2+mm_percpu_wq20:30:248
1313956993231,1cyclictest0-21swapper/119:40:141
1313976993126,1cyclictest1539570-21mii-tool23:30:1513
1313964993129,2cyclictest0-21swapper/321:00:199
1313959993129,2cyclictest0-21swapper/221:05:128
1313959993125,3cyclictest401rcuc/222:35:228
131398699307,10cyclictest0-21swapper/1021:00:282
131398699306,11cyclictest0-21swapper/1020:38:302
131398699306,11cyclictest0-21swapper/1020:27:312
1313986993026,1cyclictest2045-21snmpd19:48:082
1313959993028,2cyclictest0-21swapper/221:55:208
1313959993028,0cyclictest0-21swapper/222:40:188
1313959993027,3cyclictest1447107-21kworker/2:2-events22:50:208
1313959993022,3cyclictest1447107-21kworker/2:2-events22:00:268
131395999300,30cyclictest1317943-21kworker/2:2+mm_percpu_wq19:45:168
131400199290,26cyclictest0-21swapper/1523:55:177
1313976992927,2cyclictest0-21swapper/722:22:0413
1313974992926,3cyclictest0-21swapper/600:25:1612
131395999293,26cyclictest0-21swapper/221:25:148
1313959992928,1cyclictest1553894-21pgrep23:45:508
1313959992927,2cyclictest0-21swapper/221:35:148
1313959992927,0cyclictest0-21swapper/223:34:028
1313959992927,0cyclictest0-21swapper/219:15:228
1313959992926,3cyclictest0-21swapper/222:34:508
1313959992926,3cyclictest0-21swapper/219:35:228
1313959992926,3cyclictest0-21swapper/200:15:248
1313959992926,0cyclictest0-21swapper/219:30:208
131395999290,29cyclictest0-21swapper/200:00:148
131395999290,27cyclictest401rcuc/200:25:188
131400199280,27cyclictest0-21swapper/1519:20:267
131400199280,27cyclictest0-21swapper/1500:31:027
1313996992827,1cyclictest0-21swapper/1319:43:445
131399699280,27cyclictest0-21swapper/1320:10:445
131399699280,27cyclictest0-21swapper/1300:24:355
131399399280,1cyclictest0-21swapper/1222:46:384
131398699280,27cyclictest0-21swapper/1022:55:412
131398699280,27cyclictest0-21swapper/1021:41:512
1313984992827,1cyclictest2045-21snmpd00:11:0515
131397999280,27cyclictest0-21swapper/823:47:5814
131397999280,27cyclictest0-21swapper/821:37:4814
131397999280,27cyclictest0-21swapper/819:30:0214
1313976992824,1cyclictest2045-21snmpd22:04:5813
1313976992824,1cyclictest2045-21snmpd00:10:1713
131397699280,27cyclictest0-21swapper/723:18:1813
131397699280,27cyclictest0-21swapper/722:52:0213
1313969992827,1cyclictest0-21swapper/521:22:4711
131396999280,27cyclictest0-21swapper/521:56:2811
1313966992827,1cyclictest2045-21snmpd22:36:3210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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