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2026-08-21 - 07:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack7slot2.osadl.org (updated Fri Aug 21, 2026 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
462827999571,20cyclictest25650irq/23-42890000.ethernet19:10:010
462827997869,7cyclictest473011-21kworker/u4:10+events_unbound21:02:230
462828996757,7cyclictest514486-21kworker/u4:2+events_unbound22:25:211
462827996659,5cyclictest519120-21kworker/u4:0+events_unbound22:02:410
462827996555,8cyclictest600539-21systemd23:07:530
462828996441,16cyclictest585302-21ps22:50:371
462827996437,8cyclictest482797-21ntpq20:25:230
462828996349,11cyclictest0-21swapper/121:50:141
462827996339,19cyclictest656495-21ssh00:10:340
462827996335,9cyclictest558317-21ntpq22:20:290
462827996255,5cyclictest536916-21kworker/u4:12+events_unbound22:15:010
462827996244,13cyclictest544720-21ssh22:05:310
462827996235,9cyclictest607347-21ntpq23:15:270
462828996153,6cyclictest653808-21kworker/u4:8+events_unbound00:08:011
462827996137,17cyclictest503348-21ssh21:20:180
462827996053,5cyclictest519120-21kworker/u4:0+events_unbound21:37:320
462827996051,7cyclictest487161-21systemd20:42:210
462827996051,7cyclictest487161-21systemd20:42:210
462827996051,4cyclictest637860-21apt-get23:50:170
462827996049,8cyclictest462825-21cyclictest00:06:110
462827996040,13cyclictest534837-21apt21:55:100
462827996037,16cyclictest647442-21ssh00:00:250
462827996034,21cyclictest570829-21latency_hist22:35:020
462827995945,10cyclictest585299-21ssh22:50:370
462827995943,11cyclictest633421-21ssh23:45:130
462827995938,15cyclictest620991-21ssh23:30:380
462827995937,12cyclictest508368-21ld21:25:300
462827995936,19cyclictest673524-21ssh00:30:130
462827995933,9cyclictest521927-21ntpq21:40:260
462827995842,11cyclictest463548-21ntpq19:10:240
462827995841,12cyclictest678921-21ssh00:35:380
462827995840,15cyclictest553263-21ssh22:15:160
462827995838,16cyclictest611115-21apt-get23:20:140
462828995735,14cyclictest580739-21ntp_states22:45:331
462827995740,13cyclictest479675-21apt-get20:15:180
462827995739,13cyclictest624522-21ssh23:35:160
462827995739,12cyclictest580744-21ssh22:45:330
462827995738,16cyclictest471937-21apt-get19:45:110
462827995737,14cyclictest665210-21ssh00:20:270
462827995737,14cyclictest665210-21ssh00:20:270
462827995731,10cyclictest589432-21memory22:55:220
462828995650,4cyclictest536919-21kworker/u4:15+events_unbound22:12:451
462828995645,9cyclictest484595-21kworker/u4:15+events_unbound21:27:281
462828995637,14cyclictest534835-21ssh21:55:101
462828995636,13cyclictest678918-21ps00:35:381
462828995634,11cyclictest503349-21diskstats21:20:181
462827995643,5cyclictest499279-21ssh21:15:310
462827995639,14cyclictest660816-21ntpq00:15:270
462827995632,4cyclictest512990-21ntpq21:30:330
462827995629,9cyclictest493133-21ntpq21:05:270
462828995547,6cyclictest378-21dbus-daemon23:27:551
462828995546,6cyclictest666746-21kworker/u4:3+events_unbound00:25:011
462828995546,6cyclictest666746-21kworker/u4:3+events_unbound00:25:011
462828995542,9cyclictest530129-21grep21:50:011
462828995539,12cyclictest544718-21ntpq22:05:311
462828995538,9cyclictest512873-21ssh21:30:281
462828995537,13cyclictest567170-21memory22:30:271
462828995536,11cyclictest557879-21diskstats22:20:191
462828995532,18cyclictest603105-21ssh23:10:351
462828995532,14cyclictest647444-21ntpq00:00:251
462827995539,12cyclictest483525-21apt-get20:30:120
462827995538,12cyclictest478324-21apt-get20:10:110
462827995538,10cyclictest669780-21ntpq00:25:290
462827995531,10cyclictest562016-21apt-get22:25:190
462827995529,22cyclictest575804-21grep22:40:180
462827995527,24cyclictest632880-21sshd23:44:410
462828995447,3cyclictest637903-21ssh23:50:171
462828995446,5cyclictest483716-21sed20:30:171
462828995444,6cyclictest0-21swapper/100:15:421
462828995435,15cyclictest656498-21ntpq00:10:341
462827995440,4cyclictest494802-21ntpq21:10:320
462827995440,10cyclictest487948-21ntpq20:45:280
462827995439,10cyclictest475090-21ntpq19:55:290
462827995439,10cyclictest475090-21ntpq19:55:290
462827995438,11cyclictest488630-21apt-get20:50:110
462827995438,10cyclictest530600-21ssh21:50:180
462827995437,13cyclictest464249-21apt-get19:15:120
462827995435,11cyclictest615555-21apt-get23:25:100
462827995434,13cyclictest525921-21ssh21:45:180
462827995426,24cyclictest603505-21grep23:10:390
462828995337,12cyclictest37-21kcompactd022:01:451
462828995333,16cyclictest494669-21ssh21:10:261
462828995333,16cyclictest468710-21ntpq19:30:281
462828995332,16cyclictest606664-21ssh23:15:121
462828995332,16cyclictest593302-21apt-get23:00:121
462828995331,18cyclictest589762-21ps22:55:371
462827995337,13cyclictest571858-21ssh22:35:360
462827995336,12cyclictest481560-21ntpq20:20:260
462827995331,4cyclictest471136-21irqstats19:40:200
462827995331,13cyclictest467927-21sh19:30:010
462827995330,13cyclictest642309-21ssh23:55:130
462828995235,12cyclictest521257-21apt-get21:40:131
462828995234,14cyclictest490559-21ntpq20:55:361
462827995238,10cyclictest469371-21apt-get19:35:090
462827995238,10cyclictest469371-21apt-get19:35:090
462827995236,11cyclictest593467-21ssh23:00:170
462827995234,11cyclictest473775-21ntpq19:50:250
462827995232,17cyclictest489983-21apt-get20:55:180
462828995144,5cyclictest612455-21head23:20:391
462828995144,5cyclictest478637-21fschecks_time20:10:181
462828995137,9cyclictest475126-21ntpq19:55:311
462828995137,9cyclictest475126-21ntpq19:55:311
462828995134,12cyclictest673539-21ssh00:30:141
462828995133,14cyclictest557310-21ssh22:20:011
462827995138,9cyclictest477051-21apt-get20:05:120
462827995134,13cyclictest468726-21ntpq19:30:290
462828995044,4cyclictest598593-21gcc23:05:321
462828995039,6cyclictest499274-21ntpq21:15:311
462828995033,11cyclictest620887-21ntpq23:30:341
462828995032,15cyclictest624497-21apt-get23:35:161
462828995032,15cyclictest469371-21apt-get19:35:121
462828995032,15cyclictest469371-21apt-get19:35:121
462828995032,14cyclictest571711-21ntpq22:35:291
462827995037,9cyclictest475781-21apt-get20:00:120
462827995034,12cyclictest466611-21users19:20:370
462827995031,14cyclictest484797-21apt-get20:35:140
462828994942,5cyclictest481720-21sendmail_mailqu20:20:351
462828994941,5cyclictest489543-21timerwakeupswit20:50:371
462828994940,7cyclictest471821-21latency_hist19:45:011
462828994939,5cyclictest633416-21apt-get23:45:131
462828994935,11cyclictest491287-21apt-get21:00:171
462828994934,12cyclictest669783-21ssh00:25:291
462828994933,11cyclictest482847-21ntpq20:25:271
462828994930,14cyclictest466213-21ntpq19:20:321
462828994929,18cyclictest575470-21ssh22:40:141
462828994835,9cyclictest517675-21ps21:35:391
462828994834,11cyclictest486091-21apt-get20:40:151
462828994834,11cyclictest486091-21apt-get20:40:151
462828994828,17cyclictest629832-21ssh23:40:341
462828994828,15cyclictest488091-21ps20:45:361
462828994740,4cyclictest472325-21gltestperf19:45:191
462828994732,11cyclictest643162-21ntpq23:55:341
462828994727,14cyclictest467928-21sh19:30:011
462828994726,17cyclictest485495-21ps20:35:351
462828994631,11cyclictest476383-21ntpq20:00:291
462828994627,14cyclictest473839-21ntp_offset19:50:301
462828994534,9cyclictest465402-21grep19:20:001
462828994435,7cyclictest493727-21latency_hist21:10:011
462828994431,11cyclictest1073-21snmpd20:15:181
462828994334,6cyclictest0-21swapper/120:05:201
462828994125,11cyclictest463345-21gltestperf19:10:181
462828993724,10cyclictest462875-21latency_hist19:10:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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