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2026-11-10 - 22:20
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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 rack3slot6.osadl.org (updated Tue Nov 10, 2026 12:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197729916,38sleep00-21swapper/007:07:500
2407999535,54cyclictest0-21swapper/111:45:111
2407998452,21cyclictest26-21ksoftirqd/109:20:111
2407998359,15cyclictest26-21ksoftirqd/111:35:131
2407998051,17cyclictest26-21ksoftirqd/111:00:121
2407997954,14cyclictest13250irq/23-ehci_hcd09:35:151
2407997952,18cyclictest26-21ksoftirqd/109:10:111
2402997920,43cyclictest0-21swapper/009:05:110
261152780,5chrt26113-21grep12:25:341
261152780,5chrt26113-21grep12:25:341
2407997849,18cyclictest26-21ksoftirqd/112:15:121
2402997732,27cyclictest14-21ksoftirqd/007:33:060
236122770,5chrt0-21swapper/009:15:250
2407997651,16cyclictest26-21ksoftirqd/110:55:211
74882750,6sleep10-21swapper/107:40:151
269552750,5sleep0171rcuc/009:25:220
117372750,4sleep0171rcuc/008:15:010
2407997343,17cyclictest0-21swapper/109:25:141
2407997242,17cyclictest0-21swapper/110:50:141
2407997222,14cyclictest26-21ksoftirqd/107:36:231
172072720,4sleep0171rcuc/010:30:170
2407997143,21cyclictest26-21ksoftirqd/110:40:121
19482717,52sleep10-21swapper/107:07:311
2407997042,15cyclictest0-21swapper/110:05:141
2407997040,17cyclictest0-21swapper/110:10:161
2407997040,17cyclictest0-21swapper/109:40:141
2407997039,17cyclictest0-21swapper/111:40:111
240799703,18cyclictest8538-21sh07:50:001
2402997044,20cyclictest14-21ksoftirqd/012:15:170
2402997019,13cyclictest14-21ksoftirqd/007:10:050
2402996947,15cyclictest25118-21apt-get12:25:110
2402996947,15cyclictest25118-21apt-get12:25:110
2402996913,43cyclictest0-21swapper/010:10:160
2407996839,16cyclictest0-21swapper/110:30:111
2407996838,17cyclictest0-21swapper/112:00:131
2407996837,18cyclictest0-21swapper/109:55:141
2407996743,16cyclictest0-21swapper/111:10:121
2407996741,16cyclictest0-21swapper/111:55:141
2407996740,18cyclictest0-21swapper/111:50:131
2407996739,16cyclictest0-21swapper/110:20:151
240299677,22cyclictest14-21ksoftirqd/011:45:000
2402996755,8cyclictest14-21ksoftirqd/008:51:140
2402996742,9cyclictest14-21ksoftirqd/010:15:150
2402996727,34cyclictest27579-21sendmail11:00:010
2407996636,16cyclictest0-21swapper/111:15:141
2402996628,12cyclictest14-21ksoftirqd/008:30:010
2407996531,24cyclictest457-21dbus-daemon10:40:011
2402996538,10cyclictest14-21ksoftirqd/012:10:140
2402996533,13cyclictest14-21ksoftirqd/008:40:000
2402996513,14cyclictest151rcu_preempt10:40:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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