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2026-05-28 - 12:39
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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 rack5slot3.osadl.org (updated Thu May 28, 2026 00:55:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12734999310,41cyclictest0-21swapper/122:40:281
127349979575,84cyclictest0-21swapper/122:39:521
127349979575,84cyclictest0-21swapper/122:39:521
1273999738142,381cyclictest121rcu_preempt23:21:086
1273699723262,292cyclictest13319-21nscd23:56:323
1273799712118,128cyclictest0-21swapper/422:45:264
127349971029,550cyclictest0-21swapper/123:23:381
1273899695100,338cyclictest12731-21cyclictest00:17:255
127379969515,677cyclictest0-21swapper/422:44:054
12734996770,42cyclictest0-21swapper/123:03:211
1273399671119,295cyclictest0-21swapper/000:18:380
127339967079,211cyclictest0-21swapper/023:22:090
1273699668159,126cyclictest698-21ptp4l23:47:593
127369966023,127cyclictest0-21swapper/300:06:253
127359965418,127cyclictest0-21swapper/200:10:052
127379964491,380cyclictest0-21swapper/400:36:174
12736996423,381cyclictest0-21swapper/300:37:103
12734996381,84cyclictest0-21swapper/123:16:261
12734996360,84cyclictest1479-21ssh00:19:131
1273699635124,380cyclictest30796-21ssh22:40:363
1273399628333,210cyclictest101ktimersoftd/023:39:430
1274099627113,381cyclictest0-21swapper/700:09:557
127399962731,296cyclictest0-21swapper/600:09:296
1274099624113,296cyclictest20552-21diskmemload00:16:577
127369962269,381cyclictest0-21swapper/323:39:523
1273599618108,508cyclictest0-21swapper/223:47:032
127399961461,422cyclictest0-21swapper/622:23:356
1273599608309,126cyclictest0-21swapper/200:37:012
127359960411,84cyclictest0-21swapper/222:41:392
12734996007,126cyclictest0-21swapper/100:36:181
12739995964,2cyclictest0-21swapper/600:18:536
12734995950,42cyclictest0-21swapper/123:39:131
12734995940,42cyclictest0-21swapper/123:47:491
127399959283,168cyclictest121rcu_preempt22:45:366
127399959179,338cyclictest0-21swapper/622:36:536
127399959179,338cyclictest0-21swapper/622:36:536
127369959179,381cyclictest0-21swapper/322:38:363
127369959179,381cyclictest0-21swapper/322:38:353
127349959143,126cyclictest0-21swapper/100:06:241
127349958981,126cyclictest0-21swapper/123:59:151
1273399589249,338cyclictest5801-21cut23:05:150
127399958835,295cyclictest0-21swapper/623:16:476
1273899588117,296cyclictest0-21swapper/522:42:085
127379958838,126cyclictest0-21swapper/422:22:014
1273599586247,127cyclictest0-21swapper/200:07:032
1273599585115,296cyclictest0-21swapper/200:19:382
127399958377,291cyclictest0-21swapper/623:05:176
1273599580238,126cyclictest0-21swapper/222:23:462
127339957728,84cyclictest0-21swapper/000:26:030
127339957728,338cyclictest0-21swapper/022:24:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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