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2026-04-25 - 02:22
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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 Sat Apr 25, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248252198182,11sleep10-21swapper/119:08:511
246692188171,12sleep00-21swapper/019:06:510
246472184167,12sleep30-21swapper/319:06:333
245692179162,13sleep20-21swapper/219:05:312
84422510,0sleep10-21swapper/122:06:141
247052470,0sleep20-21swapper/223:01:432
135532470,0sleep20-21swapper/219:50:122
286262420,0sleep00-21swapper/023:51:230
219532420,0sleep10-21swapper/121:10:131
153222110,0sleep00-21swapper/023:45:140
270692100,0sleep20-21swapper/222:47:022
2509699102,2cyclictest0-21swapper/321:10:123
104242100,0sleep00-21swapper/023:10:220
100572100,0sleep10-21swapper/123:26:131
3008290,0sleep10-21swapper/122:20:001
25236290,0sleep10-21swapper/123:02:021
250969982,1cyclictest0-21swapper/321:40:123
250969982,1cyclictest0-21swapper/321:25:123
250829980,7cyclictest0-21swapper/000:25:110
250969971,1cyclictest0-21swapper/320:00:153
250829971,3cyclictest4160-21awk23:40:000
250829970,3cyclictest6093-21munin-run21:50:010
250969965,1cyclictest5891-21apt-get20:40:113
250969963,2cyclictest28848-21apt-get23:20:133
250969963,1cyclictest30935-21apt-get19:20:113
250969962,3cyclictest0-21swapper/300:15:123
250969961,1cyclictest40-21ksoftirqd/322:52:303
250969961,1cyclictest40-21ksoftirqd/321:20:273
250969961,1cyclictest0-21swapper/323:40:163
250969961,1cyclictest0-21swapper/323:35:013
250969961,1cyclictest0-21swapper/323:04:083
250969961,1cyclictest0-21swapper/322:47:213
250969961,1cyclictest0-21swapper/322:36:203
250969961,1cyclictest0-21swapper/322:10:173
250969961,1cyclictest0-21swapper/322:07:003
250969961,1cyclictest0-21swapper/321:53:493
250969961,1cyclictest0-21swapper/321:45:213
250969961,1cyclictest0-21swapper/320:45:193
250969961,1cyclictest0-21swapper/320:20:183
250969961,1cyclictest0-21swapper/300:25:123
250969961,1cyclictest0-21swapper/300:13:353
250969961,1cyclictest0-21swapper/300:00:103
250969961,0cyclictest0-21swapper/323:55:163
250969960,5cyclictest24716-21ntp_states20:10:183
250969960,3cyclictest13665-21mailstats22:40:183
250969960,2cyclictest20712-21diskmemload00:35:483
250969960,2cyclictest20712-21diskmemload00:30:523
250969960,2cyclictest12024-21irqstats20:50:153
250969960,1cyclictest40-21ksoftirqd/323:48:283
250969960,1cyclictest40-21ksoftirqd/323:27:323
250969960,1cyclictest40-21ksoftirqd/300:09:353
250969960,1cyclictest0-21swapper/323:05:103
250969960,1cyclictest0-21swapper/322:28:343
250969960,1cyclictest0-21swapper/322:20:123
250969960,1cyclictest0-21swapper/321:30:023
250969960,1cyclictest0-21swapper/321:16:193
5463250,0sleep10-21swapper/100:12:051
250969954,1cyclictest3401-21apt-get20:35:103
250969952,2cyclictest802-21snmpd19:41:463
250969952,2cyclictest15761-21munin-run21:00:003
250969951,3cyclictest0-21swapper/319:55:153
250969951,2cyclictest0-21swapper/322:55:173
250969951,1cyclictest802-21snmpd21:56:083
250969951,1cyclictest40-21ksoftirqd/321:00:023
250969951,1cyclictest40-21ksoftirqd/319:30:113
250969951,1cyclictest40-21ksoftirqd/319:10:113
250969951,1cyclictest40-21ksoftirqd/300:20:363
250969951,1cyclictest0-21swapper/323:10:443
250969951,1cyclictest0-21swapper/320:05:143
250969951,1cyclictest0-21swapper/319:50:173
250969950,4cyclictest25925-21apt-get20:15:133
250969950,4cyclictest0-21swapper/322:00:133
250969950,3cyclictest2206-21ntp_states20:30:173
250969950,3cyclictest0-21swapper/321:05:123
250969950,2cyclictest27060-21sshd23:50:243
250969950,2cyclictest0-21swapper/323:30:133
250969950,1cyclictest391ktimersoftd/321:39:233
250969950,1cyclictest0-21swapper/323:15:143
250969950,1cyclictest0-21swapper/322:30:133
250969950,1cyclictest0-21swapper/322:15:013
250969950,1cyclictest0-21swapper/319:15:143
250969950,1cyclictest0-21swapper/319:15:133
250919953,2cyclictest0-21swapper/223:48:552
250919952,3cyclictest6840-21ssh21:34:362
250919951,2cyclictest0-21swapper/221:50:122
250919950,5cyclictest0-21swapper/200:30:162
250919950,4cyclictest0-21swapper/220:45:132
250919950,0cyclictest0-21swapper/200:15:152
250879951,3cyclictest0-21swapper/123:15:121
250879950,5cyclictest0-21swapper/121:23:381
250829955,0cyclictest3-21ksoftirqd/023:00:110
250829952,3cyclictest802-21snmpd23:06:440
250829950,5cyclictest0-21swapper/000:02:570
250829950,4cyclictest5076-21rm23:55:340
250829950,4cyclictest28559-21apt-get23:20:020
250829950,4cyclictest19284-21ssh22:59:410
250829950,4cyclictest0-21swapper/021:10:110
250829950,4cyclictest0-21swapper/000:20:120
250829950,0cyclictest81rcu_preempt21:35:130
250969942,1cyclictest30890-21apt-get20:25:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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