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2025-12-16 - 18:23
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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 Tue Dec 16, 2025 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
882921999011,60cyclictest1036954-21/usr/sbin/munin11:40:224
88292199823,59cyclictest899956-21munin-run07:40:014
882921997335,19cyclictest912518-21cat08:00:174
882921997335,19cyclictest1019042-21users11:05:264
882921997133,38cyclictest0-21swapper/411:29:134
882921997132,39cyclictest0-21swapper/410:14:574
882921997031,39cyclictest0-21swapper/412:05:064
882921996930,39cyclictest0-21swapper/410:26:334
882921996930,39cyclictest0-21swapper/409:02:334
882921996830,19cyclictest1016919-21sed11:05:014
882921996829,39cyclictest0-21swapper/409:24:134
882921996828,39cyclictest1014116-21sed11:00:024
882921996828,39cyclictest0-21swapper/411:13:294
882921996728,39cyclictest0-21swapper/410:47:064
882921996728,39cyclictest0-21swapper/410:41:014
882921996728,39cyclictest0-21swapper/409:46:294
882921996728,39cyclictest0-21swapper/408:43:384
882921996628,19cyclictest0-21swapper/410:05:174
88292199634,0cyclictest0-21swapper/409:57:074
88292199601,19cyclictest0-21swapper/411:54:554
88292199600,59cyclictest0-21swapper/407:33:524
88292199580,58cyclictest0-21swapper/410:02:484
882922995717,39cyclictest927036-21chrt08:25:185
88292199570,18cyclictest0-21swapper/410:37:554
88292199570,17cyclictest0-21swapper/409:05:484
88292199560,17cyclictest0-21swapper/411:32:084
882921995517,19cyclictest876-21mta-sts-daemon07:57:344
882921995517,19cyclictest601ktimers/408:10:214
882921995517,19cyclictest1040481-21hddtemp_smartct11:45:154
882921995516,39cyclictest0-21swapper/407:20:184
88292199550,55cyclictest0-21swapper/411:59:164
88292199550,55cyclictest0-21swapper/410:19:164
88292199550,55cyclictest0-21swapper/410:19:154
88292199550,55cyclictest0-21swapper/407:54:364
88292199550,55cyclictest0-21swapper/407:49:034
882921995419,35cyclictest0-21swapper/412:20:304
882921995415,39cyclictest878683-21kworker/u32:1+flush-8:007:19:294
882922995315,19cyclictest0-21swapper/509:25:185
882921995319,34cyclictest0-21swapper/412:25:254
882921995319,34cyclictest0-21swapper/409:15:544
882921995313,39cyclictest975194-21/usr/sbin/munin09:50:144
882921995233,19cyclictest0-21swapper/412:15:334
882921995233,19cyclictest0-21swapper/412:10:254
882921995233,19cyclictest0-21swapper/410:20:104
882921995233,19cyclictest0-21swapper/409:25:184
882921995233,19cyclictest0-21swapper/408:34:264
882921995233,19cyclictest0-21swapper/408:28:574
882921995233,19cyclictest0-21swapper/408:06:344
882917995213,19cyclictest0-21swapper/009:10:170
882922995113,19cyclictest0-21swapper/512:35:135
882921995132,19cyclictest0-21swapper/410:50:094
882921995132,19cyclictest0-21swapper/409:31:534
882921995132,19cyclictest0-21swapper/409:13:494
882921995132,19cyclictest0-21swapper/408:24:144
882921995132,19cyclictest0-21swapper/407:40:254
882921995132,0cyclictest0-21swapper/411:20:414
882921995111,1cyclictest0-21swapper/407:10:034
882918995113,19cyclictest0-21swapper/108:55:171
882921995032,18cyclictest0-21swapper/407:26:014
882921995031,19cyclictest0-21swapper/411:17:184
882921995031,19cyclictest0-21swapper/410:33:104
882917995012,19cyclictest0-21swapper/011:15:170
882917995012,19cyclictest0-21swapper/009:25:170
882921994930,19cyclictest0-21swapper/412:36:254
882921994930,19cyclictest0-21swapper/412:33:544
882921994930,19cyclictest0-21swapper/408:58:224
882919994949,0cyclictest0-21swapper/209:05:172
882921994829,19cyclictest0-21swapper/412:03:054
882921994829,19cyclictest0-21swapper/411:35:094
882921994829,19cyclictest0-21swapper/408:48:014
882921994829,0cyclictest0-21swapper/409:38:594
88291799489,38cyclictest0-21swapper/007:55:170
882921994728,19cyclictest0-21swapper/408:52:334
882921994728,19cyclictest0-21swapper/408:39:054
882921994728,19cyclictest0-21swapper/408:18:504
882922994645,1cyclictest0-21swapper/509:55:165
882921994526,19cyclictest0-21swapper/409:41:464
88291799457,19cyclictest0-21swapper/011:00:150
882918994122,19cyclictest321rcuc/112:00:161
882922993920,19cyclictest0-21swapper/510:50:175
88292299391,38cyclictest0-21swapper/510:55:175
88292199390,19cyclictest0-21swapper/407:10:024
88292199390,19cyclictest0-21swapper/407:10:014
88291799390,38cyclictest0-21swapper/009:20:240
88291799390,20cyclictest0-21swapper/010:55:180
88291799380,37cyclictest0-21swapper/012:25:160
88291799380,19cyclictest0-21swapper/008:50:160
88291799380,19cyclictest0-21swapper/007:35:180
882922993719,18cyclictest0-21swapper/508:30:165
882922993718,19cyclictest691ktimers/511:35:185
882917993717,19cyclictest171ktimers/010:05:180
88292399350,15cyclictest0-21swapper/612:25:176
88292399350,15cyclictest0-21swapper/612:10:176
88292299350,15cyclictest0-21swapper/512:30:165
88291899350,15cyclictest0-21swapper/112:20:141
882917993514,20cyclictest0-21swapper/011:40:190
88291799350,16cyclictest0-21swapper/008:10:160
88291799350,15cyclictest0-21swapper/008:55:180
88291799350,15cyclictest0-21swapper/007:25:160
88292499340,34cyclictest0-21swapper/709:50:177
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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