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2026-08-25 - 04:44
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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 rack5slot2.osadl.org (updated Tue Aug 25, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
250392206189,12sleep30-21swapper/319:08:213
251552196181,11sleep10-21swapper/119:09:521
250042196179,12sleep00-21swapper/019:07:530
25028211799,13sleep20-21swapper/219:08:122
190172460,0sleep30-21swapper/323:19:103
190172460,0sleep30-21swapper/323:19:103
115522450,0sleep30-21swapper/322:42:273
94012440,0sleep00-21swapper/023:47:450
109092440,0sleep20-21swapper/222:42:012
136742420,0sleep20-21swapper/221:22:032
253549971,6cyclictest3001-21cat00:35:193
253549970,6cyclictest18836-21ssh21:40:283
253549963,3cyclictest22310-21hddtemp_smartct22:15:163
253549960,6cyclictest29411-21ntp_states23:40:193
253549960,6cyclictest21514-21ssh00:10:553
253549960,6cyclictest20864-21apt-get23:20:103
253549960,6cyclictest0-21swapper/323:48:073
253549960,6cyclictest0-21swapper/322:58:023
253549960,6cyclictest0-21swapper/322:14:283
253549960,6cyclictest0-21swapper/319:40:133
253549960,5cyclictest0-21swapper/300:20:073
253509960,6cyclictest0-21swapper/221:33:142
253479960,3cyclictest27711-21perf19:15:000
253549955,0cyclictest7482-21kworker/3:022:36:243
253549952,3cyclictest0-21swapper/323:55:333
253549952,3cyclictest0-21swapper/323:05:473
253549952,3cyclictest0-21swapper/322:25:353
253549952,3cyclictest0-21swapper/322:05:323
253549952,3cyclictest0-21swapper/321:56:083
253549952,3cyclictest0-21swapper/321:35:153
253549952,3cyclictest0-21swapper/321:30:083
253549952,3cyclictest0-21swapper/321:25:143
253549952,3cyclictest0-21swapper/300:15:383
253549952,3cyclictest0-21swapper/300:05:033
253549951,4cyclictest0-21swapper/320:00:123
253549950,5cyclictest29768-21ssh21:46:043
253549950,5cyclictest0-21swapper/323:50:463
253549950,5cyclictest0-21swapper/323:36:313
253549950,5cyclictest0-21swapper/323:30:433
253549950,5cyclictest0-21swapper/323:10:593
253549950,5cyclictest0-21swapper/323:00:463
253549950,5cyclictest0-21swapper/322:31:223
253549950,5cyclictest0-21swapper/322:21:513
253549950,5cyclictest0-21swapper/322:00:113
253549950,5cyclictest0-21swapper/321:50:163
253549950,5cyclictest0-21swapper/321:22:123
253549950,5cyclictest0-21swapper/319:10:153
253549950,5cyclictest0-21swapper/300:33:513
253549950,5cyclictest0-21swapper/300:25:553
253549950,0cyclictest0-21swapper/321:16:083
253549950,0cyclictest0-21swapper/300:00:153
253509955,0cyclictest0-21swapper/223:40:242
253509953,2cyclictest20216-21kworker/2:000:02:332
253509950,5cyclictest1908-21ssh23:26:182
253509950,5cyclictest0-21swapper/221:16:212
253509950,5cyclictest0-21swapper/200:36:082
253509950,5cyclictest0-21swapper/200:22:002
253489955,0cyclictest0-21swapper/123:39:571
253489951,2cyclictest0-21swapper/122:05:141
253489951,2cyclictest0-21swapper/121:40:131
253489951,2cyclictest0-21swapper/119:50:121
253489951,2cyclictest0-21swapper/119:45:121
253489950,5cyclictest0-21swapper/123:34:171
253489950,5cyclictest0-21swapper/121:26:581
253479955,0cyclictest0-21swapper/023:29:160
253479952,3cyclictest27920-21kworker/0:221:02:110
253479952,3cyclictest27920-21kworker/0:220:51:110
253479952,3cyclictest27920-21kworker/0:219:26:110
253479950,5cyclictest0-21swapper/022:00:030
253479950,4cyclictest24840-21ssh21:44:160
22808250,0sleep30-21swapper/322:48:193
253549944,0cyclictest7482-21kworker/3:020:55:373
253549944,0cyclictest7482-21kworker/3:020:33:133
253549944,0cyclictest7482-21kworker/3:019:26:043
253549943,1cyclictest7482-21kworker/3:019:59:403
253549943,1cyclictest6242-21grep19:35:013
253549942,1cyclictest17084-21hddtemp_smartct21:00:153
253549941,3cyclictest0-21swapper/323:25:143
253549940,4cyclictest26162-21apt-get22:50:113
253549940,3cyclictest5370-21/usr/sbin/munin20:35:193
253549940,3cyclictest32460-21ntp_states19:20:173
253549940,3cyclictest31427-21wget20:25:133
253549940,3cyclictest19972-21grep21:05:163
253549940,3cyclictest11736-21cat20:50:133
253549940,3cyclictest0-21swapper/320:10:013
253549940,3cyclictest0-21swapper/320:10:013
253549940,1cyclictest15071-21sed19:50:153
253509944,0cyclictest0-21swapper/223:51:022
253509944,0cyclictest0-21swapper/223:30:302
253509944,0cyclictest0-21swapper/222:49:552
253509944,0cyclictest0-21swapper/222:26:122
253509944,0cyclictest0-21swapper/200:31:112
253509944,0cyclictest0-21swapper/200:08:382
253509943,1cyclictest9900-21sh19:40:162
253509942,2cyclictest20216-21kworker/2:021:49:092
253509942,1cyclictest28468-21ssh23:58:312
253509942,1cyclictest11456-21ssh22:10:092
253509941,3cyclictest31-21ksoftirqd/219:45:132
253509940,4cyclictest0-21swapper/223:23:092
253509940,4cyclictest0-21swapper/223:18:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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