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2026-01-02 - 18:39
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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 rack0slot5.osadl.org (updated Fri Jan 02, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
354759699468410,28cyclictest0-21swapper/323:34:059
3547620994597,58cyclictest0-21swapper/1000:31:222
35476109944823,30cyclictest3597169-21cat20:04:4713
35476209944525,30cyclictest0-21swapper/1000:22:012
35476109944521,30cyclictest0-21swapper/719:46:2213
35476109944521,30cyclictest0-21swapper/719:46:2213
35476409942323,399cyclictest0-21swapper/1420:43:216
3547640994210,28cyclictest0-21swapper/1400:27:226
35476069941923,395cyclictest0-21swapper/621:50:2212
3547625994188,409cyclictest2879527-21iostat22:16:453
35476179941616,396cyclictest0-21swapper/923:39:4515
35476209941415,398cyclictest0-21swapper/1023:45:442
35476259941215,396cyclictest0-21swapper/1120:57:523
35476069941218,393cyclictest0-21swapper/621:01:0612
354760099411410,1cyclictest0-21swapper/423:53:2210
35476319941010,399cyclictest0-21swapper/1220:45:084
35476179940915,0cyclictest0-21swapper/900:10:5615
3547631994089,398cyclictest0-21swapper/1200:05:124
35476159940815,392cyclictest0-21swapper/820:18:1514
3547631994078,398cyclictest0-21swapper/1220:35:474
3547617994036,394cyclictest0-21swapper/919:11:0415
3547617994034,397cyclictest0-21swapper/922:54:5715
3547596994039,394cyclictest0-21swapper/323:38:479
3547625994026,393cyclictest0-21swapper/1119:11:223
3547635994014,396cyclictest0-21swapper/1300:33:105
3547635993980,397cyclictest0-21swapper/1323:53:225
354761799397393,3cyclictest3603331-21InputThread23:54:1715
35475879939712,385cyclictest0-21swapper/123:00:391
354759699396392,4cyclictest3603366-21gnome-shell19:11:229
3547635993950,394cyclictest0-21swapper/1321:05:045
354760099394391,2cyclictest3618935-21kworker/4:1+events20:45:0810
3547600993940,393cyclictest0-21swapper/422:14:5810
3547587993943,391cyclictest0-21swapper/121:24:441
35475879939314,378cyclictest0-21swapper/122:17:041
354760099392390,2cyclictest3630925-21kworker/4:0+events00:05:1210
354760099392389,2cyclictest3534812-21kworker/4:2+events20:35:4710
3547583993924,387cyclictest0-21swapper/020:05:030
3547600993910,0cyclictest0-21swapper/423:46:5510
354761599388386,2cyclictest3603331-21InputThread20:05:0314
354759699388388,0cyclictest0-21swapper/319:23:209
354761799382379,2cyclictest3603331-21InputThread21:27:4515
354761799381378,3cyclictest3603322-21Xorg23:14:3715
354759699381378,2cyclictest3639368-21kworker/3:1+events22:16:459
354763199380379,1cyclictest0-21swapper/1223:04:474
354759699379377,2cyclictest3705335-21kworker/3:0+events23:59:509
354759699378377,1cyclictest0-21swapper/300:22:559
354759699374372,2cyclictest3471452-21kworker/3:3+events20:57:529
354759699373373,0cyclictest0-21swapper/323:57:419
354758799373373,0cyclictest0-21swapper/123:11:111
354764399372367,5cyclictest3603366-21gnome-shell23:45:227
354758399369365,3cyclictest0-21swapper/020:17:540
354764099368363,4cyclictest3603366-21gnome-shell21:50:226
354758399368366,2cyclictest0-21swapper/000:21:450
354760099366363,3cyclictest3603322-21Xorg23:04:4710
354764399362359,2cyclictest3603322-21Xorg21:48:587
354758399362361,1cyclictest0-21swapper/020:43:000
354764099360357,2cyclictest3603322-21Xorg21:01:066
354760699360359,1cyclictest0-21swapper/622:19:1712
35470302360335,15sleep20-21swapper/219:05:488
354760699359359,0cyclictest0-21swapper/622:19:3712
354762599358357,1cyclictest0-21swapper/1123:48:013
354758799358354,3cyclictest3737408-21kworker/1:0+events23:39:451
35472332358306,15sleep130-21swapper/1319:08:245
35438472356300,15sleep80-21swapper/819:04:3314
354761099355354,1cyclictest0-21swapper/723:45:2213
354758799354352,2cyclictest3603331-21InputThread00:10:561
35471252354304,39sleep60-21swapper/619:06:5612
354758399353352,1cyclictest0-21swapper/021:23:130
354759199352347,5cyclictest3603366-21gnome-shell23:43:228
354758799352350,2cyclictest0-21swapper/121:09:451
35471392352343,5sleep10-21swapper/119:07:071
35471732351324,16sleep150-21swapper/1519:07:387
35471052351303,15sleep90-21swapper/919:06:4315
35471432350302,37sleep30-21swapper/319:07:099
354762599349347,2cyclictest3603331-21InputThread00:26:133
35476029934926,30cyclictest0-21swapper/523:21:0311
35476029934926,30cyclictest0-21swapper/521:50:4611
354758799349347,2cyclictest0-21swapper/120:39:451
354760699348346,2cyclictest3485086-21kworker/6:1+events19:52:1712
354758799347345,2cyclictest0-21swapper/119:51:561
35472682347322,15sleep110-21swapper/1119:08:543
35472122347321,15sleep140-21swapper/1419:08:096
35469762347321,15sleep70-21swapper/719:05:0513
354761099346346,0cyclictest0-21swapper/721:48:5813
354758799346345,1cyclictest0-21swapper/119:34:561
354758799346343,3cyclictest3530631-21kworker/1:6+events19:11:041
354758799345344,1cyclictest0-21swapper/123:08:481
354758799345343,2cyclictest3575885-21kworker/1:1+events22:54:571
354758799345343,2cyclictest0-21swapper/119:23:201
35469732345294,15sleep40-21swapper/419:05:0210
354758799343342,1cyclictest0-21swapper/121:54:161
354758799342341,1cyclictest0-21swapper/123:52:501
35471872342316,15sleep100-21swapper/1019:07:492
35470842342325,10sleep120-21swapper/1219:06:304
354760699341340,1cyclictest0-21swapper/620:05:5712
354761799340340,0cyclictest0-21swapper/900:23:3715
354760699340338,2cyclictest0-21swapper/623:53:1112
35475879933716,30cyclictest0-21swapper/123:14:371
35472602337312,15sleep50-21swapper/519:08:4811
354760699336335,1cyclictest0-21swapper/600:30:4612
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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