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2026-04-07 - 08:03
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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 rackeslot3.osadl.org (updated Tue Apr 07, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1952579996738,28cyclictest2044194-21kworker/1:122:15:131
195257999651,62cyclictest0-21swapper/100:17:401
1952579996461,2cyclictest0-21swapper/120:37:531
1952579996434,29cyclictest2105573-21kworker/1:223:35:141
1952579996360,2cyclictest0-21swapper/121:52:531
1952579996339,23cyclictest2002087-21kworker/1:221:40:151
1952579996334,28cyclictest2133943-21kworker/1:300:05:171
1952579996230,30cyclictest2111155-21kworker/1:123:40:131
1952579996129,31cyclictest2101237-21kworker/1:000:10:161
1952579996045,14cyclictest2091600-21kworker/1:223:15:011
1952579996040,19cyclictest1952415-21kworker/1:119:20:141
1952579996032,27cyclictest1966159-21kworker/1:319:55:121
1952579995939,18cyclictest2124670-21kworker/1:223:55:161
1952579995856,1cyclictest0-21swapper/121:08:481
1952579995842,15cyclictest1979439-21kworker/1:120:45:151
1952579995842,15cyclictest1979439-21kworker/1:120:45:141
1952579995841,16cyclictest2038101-21kworker/1:022:10:151
1952579995841,15cyclictest2053873-21kworker/1:222:35:001
1952579995829,28cyclictest2029462-21kworker/1:222:05:151
1952579995748,8cyclictest0-21swapper/123:00:011
1952579995742,14cyclictest3116789-1kworker/1:1H21:55:141
1952579995742,14cyclictest2016476-21kworker/1:021:45:001
1952579995742,14cyclictest1966159-21kworker/1:320:00:141
1952579995741,15cyclictest2156932-21kworker/1:000:35:131
1952579995741,15cyclictest2074445-21kworker/1:022:53:591
1952579995738,18cyclictest3116789-1kworker/1:1H23:50:131
1952579995738,18cyclictest3116789-1kworker/1:1H23:50:131
1952579995738,17cyclictest3116789-1kworker/1:1H23:02:511
1952579995735,19cyclictest3116789-1kworker/1:1H21:25:001
195257999570,56cyclictest0-21swapper/122:20:391
1952579995641,14cyclictest2116451-21kworker/1:323:46:291
1952579995641,14cyclictest2101237-21kworker/1:023:30:111
1952579995641,14cyclictest2069778-21kworker/1:222:47:281
1952579995641,14cyclictest2007444-21kworker/1:321:32:231
1952579995641,14cyclictest2002087-21kworker/1:221:35:061
1952579995641,14cyclictest1979439-21kworker/1:120:54:551
1952579995641,14cyclictest1960680-21kworker/1:019:40:131
1952579995640,15cyclictest1965609-21kworker/1:219:50:141
1952579995637,18cyclictest1979439-21kworker/1:120:55:131
195257999563,51cyclictest0-21swapper/100:31:401
195257999560,54cyclictest0-21swapper/123:27:291
195257999560,54cyclictest0-21swapper/121:00:061
195257999560,54cyclictest0-21swapper/120:15:271
1952579995552,2cyclictest0-21swapper/120:42:481
1952579995540,14cyclictest1993459-21kworker/1:021:15:011
1952579995540,14cyclictest1977663-21kworker/1:020:31:231
1952579995538,16cyclictest2033753-21kworker/1:122:04:291
1952579995538,16cyclictest1952415-21kworker/1:119:15:121
1952579995537,17cyclictest1988968-21kworker/1:221:10:141
1952579995537,17cyclictest1952415-21kworker/1:119:30:131
1952579995536,18cyclictest3116789-1kworker/1:1H22:40:001
1952579995527,27cyclictest3116789-1kworker/1:1H22:40:121
195257999551,2cyclictest2151154-21fschecks_count00:25:131
195257999550,54cyclictest0-21swapper/123:23:281
195257999550,54cyclictest0-21swapper/123:23:281
1952577995549,3cyclictest4110129-1kworker/0:2H23:20:000
1952582995447,4cyclictest3168092-1kworker/2:2H00:00:012
1952579995439,14cyclictest1960680-21kworker/1:019:47:181
1952579995439,14cyclictest1952415-21kworker/1:119:10:211
1952579995436,17cyclictest2082971-21kworker/1:023:10:131
1952579995434,19cyclictest2048317-21kworker/1:022:25:141
1952582995348,3cyclictest3168092-1kworker/2:2H19:33:182
1952582995348,3cyclictest2018964-21kworker/2:121:58:552
1952579995339,13cyclictest1952415-21kworker/1:119:25:141
1952579995338,14cyclictest3116789-1kworker/1:1H23:05:141
1952579995338,14cyclictest2101237-21kworker/1:000:00:141
1952579995338,14cyclictest2002087-21kworker/1:221:29:541
1952579995338,14cyclictest1966159-21kworker/1:320:20:051
1952579995336,16cyclictest2144008-21kworker/1:200:20:141
1952577995350,2cyclictest1998836-21kworker/0:121:39:290
1952579995237,14cyclictest1975450-21kworker/1:220:25:141
1952579995237,14cyclictest1960680-21kworker/1:019:38:481
1952579995236,15cyclictest1966159-21kworker/1:320:10:131
1952577995247,3cyclictest4110129-1kworker/0:2H21:43:220
1952583995145,4cyclictest2540909-1kworker/3:0H23:18:283
1952582995144,4cyclictest3168092-1kworker/2:2H19:25:142
1952582995132,16cyclictest3168092-1kworker/2:2H22:45:142
1952577995146,3cyclictest4110129-1kworker/0:2H19:56:170
1952583995047,2cyclictest2064411-21kworker/3:223:30:573
1952583995047,2cyclictest2052115-21kworker/3:122:27:343
1952583995046,2cyclictest2064411-21kworker/3:222:58:283
1952583995045,3cyclictest2540909-1kworker/3:0H00:29:553
1952583995044,4cyclictest1938471-21kworker/3:019:52:163
1952582995046,2cyclictest2046667-21kworker/2:222:19:522
1952582995045,3cyclictest3168092-1kworker/2:2H22:21:292
1952582995045,3cyclictest3168092-1kworker/2:2H21:49:492
1952582995045,3cyclictest3168092-1kworker/2:2H20:47:532
1952582995045,3cyclictest3168092-1kworker/2:2H20:47:532
1952582995040,7cyclictest3168092-1kworker/2:2H22:52:512
1952577995045,3cyclictest4110129-1kworker/0:2H20:45:140
1952577995045,3cyclictest4110129-1kworker/0:2H20:45:130
1952583994946,2cyclictest2064411-21kworker/3:200:01:133
1952583994945,2cyclictest2540909-1kworker/3:0H20:30:043
1952582994945,2cyclictest2087013-21kworker/2:023:15:142
1952582994944,3cyclictest3168092-1kworker/2:2H21:39:232
1952582994944,3cyclictest2046667-21kworker/2:222:30:142
1952582994935,11cyclictest3168092-1kworker/2:2H23:20:122
1952582994935,11cyclictest3168092-1kworker/2:2H23:20:122
1952577994946,2cyclictest2029676-21kworker/0:222:01:550
1952583994845,2cyclictest1971779-21kworker/3:221:05:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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