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2026-01-02 - 15:12
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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 rack3slot6.osadl.org (updated Fri Jan 02, 2026 12:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
204721130,6chrt2048-21/usr/sbin/munin08:30:340
4512998044,22cyclictest26582-21apt-get08:10:131
4508998027,14cyclictest14-21ksoftirqd/007:36:080
276327929,38sleep00-21swapper/007:05:130
4512997748,14cyclictest667-21apt-get11:30:141
4512997748,14cyclictest667-21apt-get11:30:141
4512997642,24cyclictest21295-21apt-get07:55:101
4512997546,15cyclictest4224-21apt-get11:40:131
4512997546,15cyclictest15618-21apt-get10:40:141
4512997546,13cyclictest11666-21apt-get09:00:131
4512997545,18cyclictest16939-21apt-get09:15:131
4512997545,15cyclictest15036-21apt-get12:10:131
322327530,32sleep10-21swapper/107:05:211
4512997446,15cyclictest16782-21apt-get12:15:141
4512997446,14cyclictest27470-21apt-get09:45:141
4512997443,16cyclictest5972-21apt-get11:45:151
4512997442,22cyclictest28329-21apt-get08:15:181
4512997436,25cyclictest12090-21apt-get07:30:151
4508997413,49cyclictest0-21swapper/011:05:140
4512997345,14cyclictest26121-21apt-get11:10:161
4512997344,15cyclictest25731-21apt-get09:40:121
4512997344,15cyclictest10263-21apt-get10:25:221
4512997344,14cyclictest24333-21apt-get11:05:131
4512997344,14cyclictest22182-21apt-get09:30:131
4512997244,14cyclictest30093-21apt-get08:20:181
4512997243,14cyclictest17823-21apt-get07:45:171
4512997243,14cyclictest15779-21apt-get07:40:121
4512997241,15cyclictest22022-21apt-get12:30:131
4512997240,21cyclictest10346-21apt-get07:25:131
450899728,12cyclictest14-21ksoftirqd/012:25:210
450899728,12cyclictest14-21ksoftirqd/012:25:210
4512997146,13cyclictest23055-21apt-get08:00:131
4512997144,14cyclictest4722-21apt-get10:10:231
4512997144,14cyclictest24795-21apt-get08:05:131
4512997142,16cyclictest19566-21apt-get07:50:201
4512997142,15cyclictest9752-21apt-get11:55:141
4512997142,15cyclictest23920-21apt-get09:35:121
4512997142,15cyclictest23920-21apt-get09:35:121
4512997136,25cyclictest4693-21apt-get08:40:141
4512997136,25cyclictest4693-21apt-get08:40:141
268702710,8chrt0-21swapper/009:40:380
4512997043,17cyclictest2415-21apt-get11:35:131
4512997043,15cyclictest4590-21apt-get07:10:141
4512997043,14cyclictest9908-21apt-get08:55:131
4512997043,14cyclictest29509-21apt-get09:50:241
4512997043,14cyclictest2627-21apt-get10:05:121
4512997042,14cyclictest19094-21apt-get10:50:131
4512997042,13cyclictest13801-21apt-get10:35:141
4512997039,20cyclictest8009-21apt-get11:50:231
4512997033,24cyclictest13402-21apt-get09:05:121
4512996945,13cyclictest13831-21apt-get07:35:171
4512996943,14cyclictest8608-21apt-get07:20:141
4512996942,15cyclictest18701-21apt-get09:20:131
4512996942,15cyclictest18701-21apt-get09:20:121
4512996934,24cyclictest13246-21apt-get12:05:111
4512996934,24cyclictest13246-21apt-get12:05:101
297642690,6chrt29763-21cut11:20:171
4512996841,14cyclictest20443-21apt-get09:25:151
4512996835,24cyclictest18542-21apt-get12:20:131
4512996745,10cyclictest26-21ksoftirqd/110:20:121
4512996741,13cyclictest877-21apt-get10:00:221
4512996740,14cyclictest31362-21apt-get11:25:121
4512996734,25cyclictest27861-21apt-get11:15:131
4512996733,21cyclictest23767-21taskset12:35:121
4512996645,13cyclictest26-21ksoftirqd/108:25:121
4512996641,13cyclictest548-21runrttasks08:35:101
4512996634,25cyclictest1134-21apt-get08:30:131
4508996612,16cyclictest14-21ksoftirqd/009:00:490
4512996540,13cyclictest12009-21apt-get10:30:141
4512996533,19cyclictest20833-21apt-get10:55:131
4508996531,14cyclictest14-21ksoftirqd/009:15:010
4512996439,13cyclictest11508-21apt-get12:00:141
4512996436,15cyclictest6848-21apt-get07:15:161
4508996422,14cyclictest14-21ksoftirqd/007:20:010
4512996336,21cyclictest0-21swapper/112:25:131
4512996336,21cyclictest0-21swapper/112:25:121
450899638,14cyclictest14-21ksoftirqd/009:30:220
4508996318,17cyclictest14-21ksoftirqd/012:05:010
4512996235,22cyclictest0-21swapper/109:55:121
450899626,23cyclictest14-21ksoftirqd/009:37:070
450899626,23cyclictest14-21ksoftirqd/009:37:060
4508996225,16cyclictest14-21ksoftirqd/007:35:010
4508996225,14cyclictest14-21ksoftirqd/012:20:000
4512996137,14cyclictest0-21swapper/111:00:101
4512996132,18cyclictest8171-21apt-get08:50:141
450899617,22cyclictest14-21ksoftirqd/011:44:240
4508996116,20cyclictest14-21ksoftirqd/010:26:390
198152615,10sleep00-21swapper/010:50:300
450899607,47cyclictest0-21swapper/009:05:120
450899606,13cyclictest14-21ksoftirqd/008:15:330
4508996025,15cyclictest14-21ksoftirqd/010:55:240
4508996025,14cyclictest14-21ksoftirqd/008:00:010
450899602,36cyclictest14-21ksoftirqd/012:05:210
450899602,36cyclictest14-21ksoftirqd/012:05:210
451299597,43cyclictest0-21swapper/108:45:221
4508995927,13cyclictest14-21ksoftirqd/007:30:010
4508995924,30cyclictest14-21ksoftirqd/011:45:290
4508995922,14cyclictest14-21ksoftirqd/011:15:010
4508995915,38cyclictest171rcuc/009:45:120
4508995914,40cyclictest0-21swapper/008:50:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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