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2026-05-23 - 06:51
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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 May 23, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
154812197182,11sleep10-21swapper/119:08:321
155772192176,12sleep00-21swapper/019:09:470
154302189171,13sleep30-21swapper/319:07:533
154192163145,13sleep20-21swapper/219:07:452
301922450,0sleep10-21swapper/100:26:461
136332440,0sleep30-21swapper/323:30:283
96732370,0sleep10-21swapper/123:29:161
21658290,0sleep10-21swapper/120:22:531
16137290,0sleep03-21ksoftirqd/020:10:190
157999992,1cyclictest30687-21systemctl19:35:163
157999990,5cyclictest0-21swapper/300:25:073
157829993,3cyclictest4208-21munin-run19:50:000
11828280,0sleep10-21swapper/123:45:311
157919977,0cyclictest22291-21kworker/2:120:22:572
157829960,3cyclictest20776-21grep22:00:010
157829960,3cyclictest1861-21perf21:35:010
157829960,0cyclictest0-21swapper/020:22:530
3867250,0sleep00-21swapper/021:20:100
21588250,1sleep021590-21cpuspeed_turbos22:00:130
157999950,5cyclictest28104-21latency22:50:153
157999950,5cyclictest15183-21diskmemload21:35:543
157999950,5cyclictest0-21swapper/323:22:593
157999950,5cyclictest0-21swapper/322:27:253
157999950,5cyclictest0-21swapper/319:48:393
157999950,5cyclictest0-21swapper/319:20:263
157999950,5cyclictest0-21swapper/300:01:243
157919950,5cyclictest0-21swapper/220:35:122
157919950,5cyclictest0-21swapper/200:20:112
157869951,2cyclictest0-21swapper/121:50:121
157869951,2cyclictest0-21swapper/100:00:111
157829955,0cyclictest0-21swapper/022:30:210
157829951,4cyclictest31268-21sendmail-msp23:39:590
157829950,5cyclictest3305-21ssh23:25:210
157829950,5cyclictest0-21swapper/022:05:120
157829950,0cyclictest0-21swapper/023:32:290
10820250,0sleep20-21swapper/200:01:052
157999944,0cyclictest26236-21gltestperf23:05:143
157999944,0cyclictest0-21swapper/323:46:253
157999944,0cyclictest0-21swapper/323:35:043
157999944,0cyclictest0-21swapper/323:10:543
157999944,0cyclictest0-21swapper/322:41:393
157999944,0cyclictest0-21swapper/320:05:063
157999943,1cyclictest68550irq/127-eth1-Tx00:15:113
157999942,1cyclictest17155-21ssh22:45:113
157999940,4cyclictest9095-21ssh23:28:573
157999940,4cyclictest18704-21chrt19:15:023
157999940,4cyclictest15183-21diskmemload21:56:103
157999940,4cyclictest0-21swapper/323:55:103
157999940,4cyclictest0-21swapper/323:50:133
157999940,4cyclictest0-21swapper/323:40:103
157999940,4cyclictest0-21swapper/323:15:113
157999940,4cyclictest0-21swapper/323:00:103
157999940,4cyclictest0-21swapper/322:56:203
157999940,4cyclictest0-21swapper/322:31:083
157999940,4cyclictest0-21swapper/322:05:323
157999940,4cyclictest0-21swapper/321:47:483
157999940,4cyclictest0-21swapper/321:31:013
157999940,4cyclictest0-21swapper/321:25:113
157999940,4cyclictest0-21swapper/321:18:343
157999940,4cyclictest0-21swapper/321:10:113
157999940,4cyclictest0-21swapper/300:20:113
157999940,3cyclictest29617-21ssh22:20:013
157999940,3cyclictest26087-21df20:25:123
157999940,3cyclictest2371-21sh22:37:473
157999940,3cyclictest22686-21ntp_states22:00:183
157999940,3cyclictest21454-21ssh00:06:233
157999940,3cyclictest0-21swapper/319:30:113
157999940,1cyclictest28697-21hddtemp_smartct00:10:143
157999940,0cyclictest0-21swapper/319:57:143
157919944,0cyclictest0-21swapper/223:50:462
157919944,0cyclictest0-21swapper/223:08:442
157919944,0cyclictest0-21swapper/222:30:022
157919944,0cyclictest0-21swapper/200:18:512
157919943,1cyclictest12078-21perl23:30:132
157919943,1cyclictest10739-21cpuspeed21:00:122
157919943,1cyclictest0-21swapper/219:27:342
157919941,1cyclictest0-21swapper/223:20:112
157919940,4cyclictest22075-21df23:35:112
157919940,4cyclictest1438-21ssh00:12:492
157919940,4cyclictest0-21swapper/223:43:002
157919940,4cyclictest0-21swapper/223:29:272
157919940,4cyclictest0-21swapper/223:15:442
157919940,4cyclictest0-21swapper/222:55:172
157919940,4cyclictest0-21swapper/222:50:502
157919940,4cyclictest0-21swapper/222:47:232
157919940,4cyclictest0-21swapper/222:40:112
157919940,4cyclictest0-21swapper/222:15:122
157919940,4cyclictest0-21swapper/222:06:322
157919940,4cyclictest0-21swapper/221:55:112
157919940,4cyclictest0-21swapper/221:22:012
157919940,4cyclictest0-21swapper/221:13:252
157919940,4cyclictest0-21swapper/220:15:162
157919940,4cyclictest0-21swapper/200:30:102
157919940,3cyclictest6066-21grep20:50:142
157919940,3cyclictest30605-21sh21:16:512
157919940,3cyclictest2922-21sh23:57:292
157919940,3cyclictest24549-21/usr/sbin/munin21:30:202
157919940,3cyclictest22556-21sh00:07:042
157919940,3cyclictest16388-21sh23:00:172
157919940,3cyclictest15835-21ssh00:35:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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