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2026-04-03 - 15:57
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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 Fri Apr 03, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2161607997264,5cyclictest2189382-21fschecks_count08:35:131
2161607996359,2cyclictest0-21swapper/108:00:481
2161607996344,17cyclictest2299281-21kworker/1:011:20:001
216160799630,62cyclictest0-21swapper/112:17:211
216160799630,62cyclictest0-21swapper/110:50:281
2161607996259,1cyclictest2345088-21ssh12:05:151
2161607996158,2cyclictest0-21swapper/110:11:531
216160799601,55cyclictest151rcu_preempt12:30:571
2161607995942,16cyclictest2293113-21kworker/1:211:04:201
2161607995942,16cyclictest2270359-21kworker/1:010:35:151
2161607995941,17cyclictest2317397-21kworker/1:011:45:121
2161607995941,17cyclictest2230812-21kworker/1:009:50:151
2161607995941,17cyclictest2230812-21kworker/1:009:50:151
2161607995941,17cyclictest2172816-21kworker/1:107:45:131
2161607995940,18cyclictest2250579-21kworker/1:110:20:141
2161607995843,14cyclictest2239725-21kworker/1:210:00:481
2161607995843,14cyclictest2204550-21kworker/1:309:20:371
2161607995842,15cyclictest2330704-21kworker/1:111:55:011
2161607995842,15cyclictest1617581-1kworker/1:1H09:39:191
2161607995842,15cyclictest1617581-1kworker/1:1H09:39:191
2161607995842,15cyclictest1617581-1kworker/1:1H08:50:161
2161607995841,16cyclictest2212868-21kworker/1:109:34:571
2161607995839,18cyclictest2264673-21kworker/1:110:30:121
2161607995742,14cyclictest2356673-21kworker/1:312:20:151
2161607995742,14cyclictest2330704-21kworker/1:112:00:071
2161607995742,14cyclictest2308974-21kworker/1:211:30:151
2161607995742,14cyclictest2295068-21kworker/1:311:14:271
2161607995742,14cyclictest2187219-21kworker/1:108:30:161
2161607995742,14cyclictest2180787-21kworker/1:108:10:141
2161607995742,14cyclictest2172816-21kworker/1:107:50:001
2161607995742,14cyclictest2166622-21kworker/1:207:40:141
2161607995742,14cyclictest1617581-1kworker/1:1H12:35:131
2161607995742,14cyclictest1617581-1kworker/1:1H08:15:331
2161607995742,14cyclictest1617581-1kworker/1:1H07:55:131
2161607995741,15cyclictest2260538-21kworker/1:310:40:011
2161607995741,15cyclictest2191220-21kworker/1:308:43:501
2161607995739,17cyclictest2163013-21kworker/1:107:15:131
2161607995642,14cyclictest2356673-21kworker/1:312:25:141
2161607995641,14cyclictest2347996-21kworker/1:212:10:131
2161607995641,14cyclictest2330704-21kworker/1:111:50:131
2161607995641,14cyclictest2299281-21kworker/1:011:15:161
2161607995641,14cyclictest2239725-21kworker/1:210:05:161
2161607995641,14cyclictest2194933-21kworker/1:009:05:141
2161607995641,14cyclictest2166622-21kworker/1:207:30:121
2161607995637,18cyclictest2184797-21kworker/1:008:25:121
2161615995550,3cyclictest2216052-21kworker/3:010:10:483
2161607995550,3cyclictest0-21swapper/110:19:221
2161607995540,14cyclictest2317397-21kworker/1:011:35:161
2161607995540,14cyclictest2317397-21kworker/1:011:35:161
2161607995540,14cyclictest2295068-21kworker/1:311:05:141
2161607995540,14cyclictest2182931-21kworker/1:308:24:111
2161607995540,14cyclictest2182931-21kworker/1:308:24:111
2161607995540,14cyclictest2165058-21kworker/1:007:20:131
2161607995539,15cyclictest2226483-21kworker/1:109:45:131
2161607995539,15cyclictest2217843-21kworker/1:209:42:481
2161607995539,15cyclictest2155879-21kworker/1:207:10:131
2161607995539,15cyclictest1617581-1kworker/1:1H09:55:141
2161607995537,17cyclictest2191220-21kworker/1:308:45:121
2161607995449,3cyclictest2312007-21fschecks_count11:25:141
2161607995440,14cyclictest2201442-21kworker/1:209:19:491
2161607995439,14cyclictest2208788-21kworker/1:009:25:311
2161607995437,16cyclictest2194933-21kworker/1:009:12:481
2161604995450,2cyclictest2171232-21kworker/0:008:19:180
2161604995450,2cyclictest2163010-21kworker/0:107:31:140
2161615995348,3cyclictest2721984-1kworker/3:2H11:33:443
2161615995348,3cyclictest2216052-21kworker/3:011:09:553
2161615995348,3cyclictest2216052-21kworker/3:010:19:583
2161614995349,2cyclictest2185428-21kworker/2:008:46:482
2161614995347,3cyclictest3168092-1kworker/2:2H10:44:252
2161604995350,2cyclictest2349316-21kworker/0:212:29:520
2161615995248,3cyclictest2368969-21kworker/3:112:37:223
2161615995247,3cyclictest2721984-1kworker/3:2H08:10:143
2161615995247,3cyclictest2721984-1kworker/3:2H07:47:473
2161615995246,4cyclictest2721984-1kworker/3:2H10:05:003
2161615995236,3cyclictest2721984-1kworker/3:2H10:20:163
2161614995249,2cyclictest2359746-21kworker/2:112:33:182
2161614995248,2cyclictest2196490-21kworker/2:109:00:062
2161614995248,2cyclictest2185428-21kworker/2:008:25:482
2161614995247,3cyclictest3168092-1kworker/2:2H10:24:152
2161607995237,14cyclictest2280152-21kworker/1:010:47:201
2161607995236,15cyclictest2179247-21kworker/1:008:05:131
2161607995235,16cyclictest2194933-21kworker/1:009:00:141
2161607995234,17cyclictest2275797-21kworker/1:110:55:131
2161615995147,3cyclictest2216052-21kworker/3:011:19:563
2161615995146,3cyclictest2721984-1kworker/3:2H08:35:213
2161615995146,3cyclictest2216052-21kworker/3:012:09:553
2161614995147,2cyclictest2323241-21kworker/2:111:39:492
2161614995147,2cyclictest2323241-21kworker/2:111:39:492
2161614995146,3cyclictest3168092-1kworker/2:2H10:12:492
2161607995136,14cyclictest2166622-21kworker/1:207:35:221
216160799510,1cyclictest0-21swapper/110:25:071
2161604995146,3cyclictest3115968-1kworker/0:0H09:35:480
2161604995146,3cyclictest3115968-1kworker/0:0H09:35:480
2161604995146,3cyclictest3115968-1kworker/0:0H09:24:490
2161615995047,2cyclictest2721984-1kworker/3:2H08:54:493
2161615995046,2cyclictest2721984-1kworker/3:2H07:19:013
2161615995046,2cyclictest2216052-21kworker/3:009:49:553
2161615995045,3cyclictest2721984-1kworker/3:2H11:41:173
2161615995045,3cyclictest2721984-1kworker/3:2H07:21:083
2161615995044,4cyclictest2721984-1kworker/3:2H11:25:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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