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2026-01-04 - 05:37
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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 Sun Jan 04, 2026 00:44:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197302240225,10sleep10-21swapper/119:06:261
199892203186,12sleep00-21swapper/019:09:460
177842196178,13sleep30-21swapper/319:05:083
198372189171,13sleep20-21swapper/219:07:482
17662450,0sleep31768-21fschecks_time22:50:153
2016899102,4cyclictest20714-21apt-get22:25:000
201789971,5cyclictest0-21swapper/320:05:143
201749960,3cyclictest7446-21ntp_states19:45:192
201689960,5cyclictest0-21swapper/020:15:110
201789955,0cyclictest6572-21kworker/3:023:40:073
201789955,0cyclictest6572-21kworker/3:023:17:423
201789955,0cyclictest6572-21kworker/3:022:21:453
201789955,0cyclictest6572-21kworker/3:021:03:233
201789955,0cyclictest6572-21kworker/3:019:33:473
201789955,0cyclictest6572-21kworker/3:019:11:263
201789955,0cyclictest6572-21kworker/3:000:13:423
201749951,2cyclictest0-21swapper/222:50:132
201749950,5cyclictest0-21swapper/219:50:122
201749950,0cyclictest0-21swapper/220:30:182
201699951,2cyclictest0-21swapper/123:55:131
201699951,2cyclictest0-21swapper/120:45:121
201699951,2cyclictest0-21swapper/100:05:111
201699950,5cyclictest0-21swapper/119:25:231
201689950,5cyclictest0-21swapper/023:40:130
201789944,0cyclictest6572-21kworker/3:020:52:103
201789944,0cyclictest6572-21kworker/3:000:24:543
201789943,1cyclictest8016-21users19:45:223
201789943,1cyclictest21531-21df20:15:133
201789943,1cyclictest21265-21expr00:35:133
201789941,1cyclictest0-21swapper/321:15:133
201789941,1cyclictest0-21swapper/300:00:123
201789940,4cyclictest17012-21cat23:20:173
201789940,4cyclictest0-21swapper/323:35:093
201789940,4cyclictest0-21swapper/321:40:023
201789940,4cyclictest0-21swapper/321:28:433
201789940,4cyclictest0-21swapper/320:40:153
201789940,4cyclictest0-21swapper/320:30:113
201789940,4cyclictest0-21swapper/320:10:123
201789940,4cyclictest0-21swapper/319:27:373
201789940,4cyclictest0-21swapper/300:25:123
201789940,3cyclictest774-21snmpd21:50:013
201789940,3cyclictest712-21cut23:55:003
201789940,3cyclictest6768-21perl23:00:163
201789940,3cyclictest29589-21ntp_states23:45:193
201789940,3cyclictest10782-21latency_hist23:10:003
201789940,3cyclictest0-21swapper/322:45:123
201789940,1cyclictest28390-21cat22:40:003
201789940,1cyclictest21146-21apt-get22:25:123
201789940,1cyclictest0-21swapper/321:10:133
201749944,0cyclictest0-21swapper/220:05:252
201749943,1cyclictest28932-21cpuspeed19:25:132
201749941,2cyclictest0-21swapper/222:40:132
201749941,2cyclictest0-21swapper/221:25:132
201749941,1cyclictest0-21swapper/220:00:122
201749941,1cyclictest0-21swapper/219:30:122
201749941,1cyclictest0-21swapper/200:20:132
201749940,4cyclictest15973-21/usr/sbin/munin22:15:152
201749940,4cyclictest0-21swapper/220:55:122
201749940,3cyclictest8311-21latency_hist22:00:012
201749940,3cyclictest6316-21diskstats00:05:132
201749940,3cyclictest4587-21ntp_states00:00:182
201749940,3cyclictest15825-21apt21:10:132
201749940,3cyclictest13180-21cat00:20:002
201749940,3cyclictest0-21swapper/222:25:132
201749940,1cyclictest980-21/usr/sbin/munin20:40:192
201749940,1cyclictest8568-21/usr/sbin/munin22:00:182
201749940,1cyclictest5918-21/usr/sbin/munin20:50:132
201749940,1cyclictest3552-21/usr/sbin/munin22:55:172
201749940,1cyclictest3451-21/usr/sbin/munin20:45:182
201749940,1cyclictest28403-21/usr/sbin/munin21:35:242
201749940,1cyclictest28403-21/usr/sbin/munin21:35:242
201749940,1cyclictest26225-21/usr/sbin/munin19:20:202
201749940,1cyclictest18356-21/usr/sbin/munin00:30:132
201749940,1cyclictest1206-21/usr/sbin/munin19:35:162
201749940,1cyclictest1134-21/usr/sbin/munin21:45:192
201699944,0cyclictest0-21swapper/121:41:521
201699944,0cyclictest0-21swapper/120:20:141
201699942,1cyclictest0-21swapper/121:55:101
201699942,1cyclictest0-21swapper/121:10:131
201699942,1cyclictest0-21swapper/121:05:111
201699941,2cyclictest0-21swapper/123:50:131
201699941,2cyclictest0-21swapper/121:35:151
201699941,2cyclictest0-21swapper/121:35:151
201699941,2cyclictest0-21swapper/121:30:131
201699941,2cyclictest0-21swapper/120:50:101
201699941,2cyclictest0-21swapper/120:25:101
201699941,2cyclictest0-21swapper/120:10:121
201699941,2cyclictest0-21swapper/119:15:131
201699941,2cyclictest0-21swapper/100:15:121
201699940,4cyclictest0-21swapper/123:18:031
201699940,4cyclictest0-21swapper/122:50:241
201699940,4cyclictest0-21swapper/122:23:031
201699940,4cyclictest0-21swapper/122:05:091
201699940,4cyclictest0-21swapper/121:01:261
201699940,4cyclictest0-21swapper/120:44:491
201699940,4cyclictest0-21swapper/119:45:361
201699940,0cyclictest0-21swapper/119:55:211
201689944,0cyclictest0-21swapper/021:16:450
201689942,2cyclictest774-21snmpd20:11:180
201689942,1cyclictest4138-21diskstats21:50:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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