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2026-04-01 - 04:14
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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 Wed Apr 01, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265152205189,11sleep10-21swapper/119:08:441
243942190172,13sleep30-21swapper/319:05:093
264522180164,12sleep00-21swapper/019:07:550
265162167149,13sleep20-21swapper/219:08:452
87052490,0sleep10-21swapper/120:40:151
304862450,0sleep00-21swapper/022:47:290
272172450,0sleep00-21swapper/021:59:090
41172440,0sleep30-21swapper/321:31:463
260222430,0sleep30-21swapper/322:45:163
46762420,0sleep00-21swapper/023:22:120
309642110,0sleep10-21swapper/100:07:451
40042100,0sleep10-21swapper/123:53:561
2686799100,7cyclictest0-21swapper/322:20:123
268379982,3cyclictest29919-21munin-run20:20:000
268379980,4cyclictest750-21munin-run00:25:010
268679961,2cyclictest0-21swapper/322:50:123
268679960,6cyclictest0-21swapper/323:25:123
26487260,0sleep10-21swapper/100:37:031
8539250,0sleep10-21swapper/123:40:141
3390250,0sleep20-21swapper/223:53:332
30755250,0sleep10-21swapper/121:45:131
268679954,1cyclictest0-21swapper/300:25:363
268679953,1cyclictest0-21swapper/320:25:123
268679950,5cyclictest0-21swapper/322:40:333
268679950,5cyclictest0-21swapper/322:35:113
268679950,5cyclictest0-21swapper/321:39:353
268679950,5cyclictest0-21swapper/321:28:493
268679950,5cyclictest0-21swapper/300:14:153
268679950,4cyclictest0-21swapper/323:30:103
268679950,1cyclictest7413-21sendmail-msp20:40:003
268679950,0cyclictest0-21swapper/322:25:163
268599955,0cyclictest31-21ksoftirqd/200:20:002
268599952,2cyclictest0-21swapper/219:50:112
268599950,5cyclictest27088-21apt-get19:10:012
268599950,5cyclictest0-21swapper/223:31:232
268599950,0cyclictest0-21swapper/222:44:492
268589951,2cyclictest0-21swapper/120:25:131
268589951,2cyclictest0-21swapper/100:25:131
268589951,1cyclictest0-21swapper/120:55:111
268589951,1cyclictest0-21swapper/100:30:111
268589950,5cyclictest0-21swapper/123:18:281
268589950,5cyclictest0-21swapper/119:40:121
268589950,5cyclictest0-21swapper/100:03:261
268379950,5cyclictest17292-21munin-run21:00:000
268379950,5cyclictest0-21swapper/022:26:140
268379950,5cyclictest0-21swapper/021:34:000
268379950,5cyclictest0-21swapper/000:10:010
268379950,1cyclictest18292-21diskstats19:55:150
268379950,0cyclictest7513-21sendmail-msp23:40:000
268379950,0cyclictest0-21swapper/000:02:340
6756240,0sleep10-21swapper/123:23:301
27197240,0sleep30-21swapper/300:05:273
268679944,0cyclictest8921-21kworker/3:223:50:043
268679943,1cyclictest19723-21head22:10:213
268679942,2cyclictest0-21swapper/319:15:123
268679941,3cyclictest25913-21ssh21:58:213
268679941,3cyclictest22234-21diskmemload22:06:343
268679941,3cyclictest15825-21ssh23:11:433
268679941,2cyclictest0-21swapper/323:45:103
268679941,2cyclictest0-21swapper/323:00:133
268679941,2cyclictest0-21swapper/322:00:113
268679941,2cyclictest0-21swapper/321:45:123
268679941,2cyclictest0-21swapper/320:45:113
268679941,2cyclictest0-21swapper/319:25:123
268679941,2cyclictest0-21swapper/300:00:113
268679940,4cyclictest0-21swapper/323:55:243
268679940,4cyclictest0-21swapper/323:55:243
268679940,4cyclictest0-21swapper/323:35:113
268679940,4cyclictest0-21swapper/323:15:093
268679940,4cyclictest0-21swapper/322:55:133
268679940,4cyclictest0-21swapper/322:30:103
268679940,4cyclictest0-21swapper/321:40:103
268679940,4cyclictest0-21swapper/321:16:293
268679940,4cyclictest0-21swapper/321:10:003
268679940,4cyclictest0-21swapper/320:30:113
268679940,4cyclictest0-21swapper/319:45:163
268679940,4cyclictest0-21swapper/319:35:123
268679940,4cyclictest0-21swapper/300:32:033
268679940,4cyclictest0-21swapper/300:24:453
268679940,3cyclictest6707-21ssh23:23:263
268679940,3cyclictest17477-21ssh00:16:413
268679940,3cyclictest15290-21/usr/sbin/munin19:50:183
268679940,3cyclictest14793-21cron20:55:003
268679940,3cyclictest1328-21ssh22:17:343
268679940,3cyclictest12569-21apt-get20:50:113
268679940,3cyclictest1232-21/usr/sbin/munin23:05:173
268599944,0cyclictest31-21ksoftirqd/221:00:012
268599944,0cyclictest0-21swapper/223:15:062
268599944,0cyclictest0-21swapper/219:45:162
268599944,0cyclictest0-21swapper/200:20:072
268599943,1cyclictest3166-21tr00:10:082
268599943,1cyclictest31-21ksoftirqd/219:20:002
268599943,1cyclictest2716-21ntp_states00:25:182
268599943,1cyclictest22589-21cut21:25:142
268599943,1cyclictest12365-21grep20:50:002
268599942,0cyclictest0-21swapper/222:45:112
268599941,3cyclictest29028-21cat22:15:132
268599941,2cyclictest0-21swapper/222:30:102
268599941,2cyclictest0-21swapper/219:20:132
268599940,4cyclictest21514-21ntp_states20:00:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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