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2026-09-01 - 12:47
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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 Sep 01, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51112195179,12sleep00-21swapper/019:07:420
52092194179,11sleep10-21swapper/119:09:001
52172187169,13sleep30-21swapper/319:09:053
49552175158,13sleep20-21swapper/219:05:442
154692490,0sleep20-21swapper/221:32:482
234572470,0sleep00-21swapper/023:46:540
52642420,0sleep10-21swapper/123:21:121
163872340,1sleep1548599cyclictest20:35:021
148872110,0sleep30-21swapper/321:48:553
203602100,0sleep20-21swapper/223:12:492
123052100,0sleep10-21swapper/122:03:421
54929980,7cyclictest0-21swapper/300:30:123
54929960,5cyclictest0-21swapper/321:55:133
54849962,4cyclictest6088-21perf20:15:000
54929955,0cyclictest26341-21kworker/3:223:39:433
54929955,0cyclictest0-21swapper/321:53:133
54929954,1cyclictest0-21swapper/300:26:593
54929953,1cyclictest31872-21munin-run22:30:013
54929950,5cyclictest0-21swapper/323:25:103
54929950,5cyclictest0-21swapper/322:14:533
54929950,5cyclictest0-21swapper/300:20:453
54929950,4cyclictest31780-21ssh21:25:073
54899955,0cyclictest1074-21diskmemload23:58:262
54899950,5cyclictest0-21swapper/222:04:392
54899950,5cyclictest0-21swapper/221:29:172
54899950,5cyclictest0-21swapper/200:17:122
54899950,5cyclictest0-21swapper/200:10:562
54899950,1cyclictest0-21swapper/223:54:122
54899950,0cyclictest0-21swapper/223:29:202
54859950,5cyclictest0-21swapper/123:08:391
54859950,5cyclictest0-21swapper/122:10:181
54859950,5cyclictest0-21swapper/100:34:561
54849955,0cyclictest3-21ksoftirqd/020:09:590
54849953,2cyclictest0-21swapper/000:06:150
54849951,2cyclictest0-21swapper/021:30:130
54849950,5cyclictest0-21swapper/022:55:320
54849950,5cyclictest0-21swapper/020:30:120
54849950,5cyclictest0-21swapper/000:22:590
54849950,5cyclictest0-21swapper/000:00:000
54849950,4cyclictest31263-21apt-get21:05:120
54849950,4cyclictest0-21swapper/020:35:020
24019250,0sleep224048-21ssh22:09:482
54929944,0cyclictest26341-21kworker/3:223:50:543
54929944,0cyclictest26341-21kworker/3:221:02:583
54929944,0cyclictest26341-21kworker/3:220:06:583
54929944,0cyclictest26341-21kworker/3:219:55:483
54929944,0cyclictest26341-21kworker/3:219:33:253
54929944,0cyclictest26341-21kworker/3:219:11:013
54929944,0cyclictest0-21swapper/323:17:183
54929944,0cyclictest0-21swapper/322:16:213
54929944,0cyclictest0-21swapper/322:16:213
54929944,0cyclictest0-21swapper/321:11:013
54929941,2cyclictest0-21swapper/321:35:113
54929940,4cyclictest0-21swapper/323:55:123
54929940,4cyclictest0-21swapper/323:45:013
54929940,4cyclictest0-21swapper/323:40:113
54929940,4cyclictest0-21swapper/323:21:393
54929940,4cyclictest0-21swapper/323:11:433
54929940,4cyclictest0-21swapper/323:04:013
54929940,4cyclictest0-21swapper/322:51:243
54929940,4cyclictest0-21swapper/322:20:353
54929940,4cyclictest0-21swapper/322:05:043
54929940,4cyclictest0-21swapper/321:20:123
54929940,4cyclictest0-21swapper/321:15:133
54929940,4cyclictest0-21swapper/320:14:293
54929940,4cyclictest0-21swapper/320:00:123
54929940,4cyclictest0-21swapper/319:20:113
54929940,4cyclictest0-21swapper/300:35:123
54929940,4cyclictest0-21swapper/300:15:453
54929940,4cyclictest0-21swapper/300:06:493
54929940,3cyclictest9794-21ssh22:35:083
54929940,3cyclictest8653-21ssh22:01:233
54929940,3cyclictest7292-21irqstats20:15:163
54929940,3cyclictest6466-21latency_hist21:45:013
54929940,3cyclictest5608-21/usr/sbin/munin23:05:163
54929940,3cyclictest29427-21ssh22:45:023
54929940,3cyclictest26520-21sh23:32:043
54929940,3cyclictest24336-21ssh22:41:543
54929940,3cyclictest2041-21df00:10:103
54929940,3cyclictest19561-21perl20:40:143
54929940,3cyclictest16846-21ls20:35:123
54929940,2cyclictest0-21swapper/300:00:053
54929940,0cyclictest0-21swapper/322:31:373
54899942,2cyclictest19790-21kworker/2:222:45:292
54899942,2cyclictest19790-21kworker/2:200:05:572
54899942,2cyclictest0-21swapper/221:22:002
54899941,3cyclictest802-21snmpd19:25:152
54899941,3cyclictest0-21swapper/222:25:132
54899941,2cyclictest0-21swapper/221:10:102
54899941,2cyclictest0-21swapper/220:35:112
54899940,4cyclictest7199-21apt-get22:50:112
54899940,4cyclictest19519-21df_inode23:45:132
54899940,4cyclictest1793-21apt23:20:102
54899940,4cyclictest1074-21diskmemload22:31:232
54899940,4cyclictest10326-21swap00:30:202
54899940,4cyclictest0-21swapper/223:37:082
54899940,4cyclictest0-21swapper/223:16:432
54899940,4cyclictest0-21swapper/222:55:362
54899940,4cyclictest0-21swapper/222:40:112
54899940,4cyclictest0-21swapper/222:22:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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