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2026-05-18 - 21:08
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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 rack1slot8.osadl.org (updated Mon May 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53929917781701,39cyclictest364-21ntp_states10:35:220
539399834779,39cyclictest0-21swapper/107:11:061
539299789737,43cyclictest0-21swapper/007:11:060
539399763710,24cyclictest0-21swapper/111:16:591
539399398356,28cyclictest0-21swapper/110:35:221
51812397371,19sleep00-21swapper/007:08:110
37012127105,15sleep10-21swapper/107:05:041
669321130,4sleep16692-21sshd10:45:571
5392991125,12cyclictest23950-21ssh11:17:580
2286991100,6rtkit-daemon0-21swapper/109:52:581
5392991029,87cyclictest0-21swapper/011:29:590
5392991029,87cyclictest0-21swapper/011:29:580
228699950,10rtkit-daemon0-21swapper/112:30:461
5392999114,60cyclictest0-21swapper/008:05:000
5392999112,61cyclictest0-21swapper/009:31:590
5392999018,56cyclictest0-21swapper/009:01:590
5392999011,73cyclictest0-21swapper/012:09:590
5392998914,57cyclictest0-21swapper/007:48:590
5392998914,56cyclictest0-21swapper/009:51:000
5392998814,54cyclictest0-21swapper/011:06:590
5392998411,57cyclictest0-21swapper/011:54:580
5393998112,23cyclictest0-21swapper/111:12:191
5393998010,17cyclictest26330-21crond10:25:011
539399795,30cyclictest0-21swapper/109:26:581
539399776,37cyclictest0-21swapper/108:05:261
539399776,33cyclictest0-21swapper/112:19:131
539399776,29cyclictest0-21swapper/109:59:071
539399775,36cyclictest0-21swapper/111:57:201
539399766,31cyclictest0-21swapper/107:55:061
539299769,61cyclictest0-21swapper/010:26:580
539299763,66cyclictest11183-21ssh10:55:180
539399758,28cyclictest0-21swapper/108:23:371
539399757,30cyclictest0-21swapper/107:20:151
539399757,28cyclictest0-21swapper/110:09:361
539399756,29cyclictest0-21swapper/108:14:111
539399756,18cyclictest0-21swapper/111:00:001
539399748,30cyclictest0-21swapper/111:40:141
539399748,30cyclictest0-21swapper/111:40:131
539399747,27cyclictest0-21swapper/110:40:111
5393997417,17cyclictest0-21swapper/109:10:031
5393997413,23cyclictest0-21swapper/109:00:121
5393997413,18cyclictest0-21swapper/111:20:121
5393997412,27cyclictest0-21swapper/107:36:591
539299742,57cyclictest9832-21ssh09:55:070
539399738,29cyclictest0-21swapper/107:42:591
539399736,29cyclictest0-21swapper/107:25:221
539399736,28cyclictest0-21swapper/111:25:131
539399736,28cyclictest0-21swapper/111:25:121
539399736,18cyclictest0-21swapper/110:04:351
539399735,34cyclictest0-21swapper/110:32:441
539399735,30cyclictest0-21swapper/111:01:181
5393997321,17cyclictest0-21swapper/111:45:131
5393997321,16cyclictest0-21swapper/111:35:381
5393997321,16cyclictest0-21swapper/111:35:371
5393997319,15cyclictest0-21swapper/110:25:261
5393997319,15cyclictest0-21swapper/109:05:261
5393997313,24cyclictest0-21swapper/108:50:011
5393997310,26cyclictest0-21swapper/107:50:141
539299735,60cyclictest0-21swapper/012:15:190
5392997324,32cyclictest0-21swapper/012:26:590
316652730,4sleep1251rcuc/109:35:201
539399728,30cyclictest0-21swapper/109:45:201
539399728,29cyclictest0-21swapper/110:15:331
539399726,30cyclictest0-21swapper/112:20:481
539399726,29cyclictest0-21swapper/110:51:051
539399726,28cyclictest0-21swapper/109:15:181
539399726,27cyclictest0-21swapper/112:38:291
539399726,17cyclictest0-21swapper/107:45:181
5393997218,18cyclictest0-21swapper/112:27:251
5393997212,22cyclictest0-21swapper/107:15:251
539399719,24cyclictest0-21swapper/111:50:161
539399717,30cyclictest0-21swapper/108:05:011
539399717,29cyclictest0-21swapper/112:00:131
539399717,29cyclictest0-21swapper/111:30:131
539399717,28cyclictest0-21swapper/107:35:001
5393997113,20cyclictest0-21swapper/109:20:111
5393997111,26cyclictest0-21swapper/108:56:091
5392997119,35cyclictest0-21swapper/010:45:580
539399708,26cyclictest0-21swapper/109:43:401
539399707,32cyclictest0-21swapper/108:30:191
539399707,28cyclictest0-21swapper/109:30:281
539399706,33cyclictest0-21swapper/111:07:551
539399706,29cyclictest0-21swapper/108:35:291
539399705,18cyclictest0-21swapper/108:42:571
5393997016,8cyclictest8250irq/14-pata_sch12:10:011
228699700,3rtkit-daemon2285-21rtkit-daemon12:34:400
539399698,28cyclictest0-21swapper/108:15:111
539399695,30cyclictest0-21swapper/108:25:231
539299693,40cyclictest9176-21munin-run08:50:000
539299693,39cyclictest19328-21latency_hist09:15:020
539299693,39cyclictest16239-21munin-run11:05:010
539299692,60cyclictest5367-21timerwakeupswit09:45:280
539399686,30cyclictest0-21swapper/112:10:181
5393996811,27cyclictest0-21swapper/108:52:591
5392996816,46cyclictest763-13audispd11:34:590
5392996814,38cyclictest0-21swapper/010:52:000
539399676,31cyclictest0-21swapper/110:14:511
539299675,56cyclictest0-21swapper/011:12:340
539299675,48cyclictest0-21swapper/008:15:160
539299673,57cyclictest20969-21munin-node10:15:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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