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2026-05-30 - 18:21
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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 rack3slot6.osadl.org (updated Sat May 30, 2026 12:45:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2250429631,53sleep10-21swapper/107:07:041
22967998249,16cyclictest503-21snmpd12:23:381
2296399773,35cyclictest36-21kcompactd008:40:210
22967997551,17cyclictest503-21snmpd09:20:041
22967997438,30cyclictest26-21ksoftirqd/107:37:281
22963997355,11cyclictest0-21swapper/011:30:120
22963997349,15cyclictest0-21swapper/012:00:130
22963997348,13cyclictest0-21swapper/010:20:140
22963997246,14cyclictest0-21swapper/010:15:160
22967997124,12cyclictest26-21ksoftirqd/109:05:001
22967997114,36cyclictest6396-21sed10:55:011
22963997113,16cyclictest0-21swapper/007:20:140
2247526921,37sleep00-21swapper/007:06:450
22967996848,8cyclictest26-21ksoftirqd/107:21:421
22967996632,15cyclictest26-21ksoftirqd/111:25:001
22967996630,22cyclictest26-21ksoftirqd/108:45:011
22967996623,38cyclictest26-21ksoftirqd/109:50:261
22967996542,9cyclictest14144-21telnet08:15:161
22963996537,14cyclictest14-21ksoftirqd/011:00:140
22963996521,38cyclictest503-21snmpd07:10:330
22967996441,9cyclictest503-21snmpd09:10:391
22967996439,9cyclictest31398-21sshd10:31:321
22967996432,14cyclictest26-21ksoftirqd/112:19:591
22967996431,14cyclictest26-21ksoftirqd/111:20:001
22967996428,14cyclictest26-21ksoftirqd/110:39:001
22967996413,9cyclictest17387-21idleruntime-cro08:25:001
22967996413,9cyclictest17387-21idleruntime-cro08:24:591
22963996413,46cyclictest0-21swapper/011:45:100
22967996346,11cyclictest8465-21ntpq12:30:301
22967996332,14cyclictest26-21ksoftirqd/110:19:591
22967996326,14cyclictest26-21ksoftirqd/108:04:591
22967996324,21cyclictest26-21ksoftirqd/111:15:011
22967996323,21cyclictest26-21ksoftirqd/109:48:081
22967996323,20cyclictest26-21ksoftirqd/108:10:001
22967996320,20cyclictest23004-21sh10:10:001
22963996335,14cyclictest0-21swapper/010:45:130
22967996228,14cyclictest26-21ksoftirqd/109:00:001
22967996227,14cyclictest26-21ksoftirqd/112:15:011
22967996225,15cyclictest26-21ksoftirqd/112:05:001
2296799622,14cyclictest25641-21df_inode07:15:201
22963996227,27cyclictest14-21ksoftirqd/012:20:140
22963996220,17cyclictest30001-21cat09:00:010
22967996137,17cyclictest26-21ksoftirqd/108:35:131
22967996135,11cyclictest26-21ksoftirqd/110:20:361
22967996133,16cyclictest26-21ksoftirqd/108:52:271
22967996128,13cyclictest26-21ksoftirqd/108:35:001
22963996134,15cyclictest0-21swapper/011:20:110
22963996133,15cyclictest0-21swapper/009:40:110
22963996132,18cyclictest0-21swapper/011:35:140
22963996121,34cyclictest21481-21aten2.4-expect10:05:160
22967996037,17cyclictest26-21ksoftirqd/107:57:441
22967996036,9cyclictest26-21ksoftirqd/111:30:181
22967996036,9cyclictest26-21ksoftirqd/109:19:401
22967996036,8cyclictest26-21ksoftirqd/111:40:311
22967996033,8cyclictest26-21ksoftirqd/110:40:351
22967996028,14cyclictest26-21ksoftirqd/111:30:011
22967996027,14cyclictest26-21ksoftirqd/111:10:011
22967996025,23cyclictest28785-21sort10:25:221
22967996025,15cyclictest26-21ksoftirqd/111:38:401
22967996025,14cyclictest26-21ksoftirqd/111:05:001
22967996022,14cyclictest26-21ksoftirqd/112:09:001
22967996016,39cyclictest26-21ksoftirqd/112:35:331
2296399606,47cyclictest31901-21apt-get10:35:130
22963996032,16cyclictest0-21swapper/011:15:120
22963996031,18cyclictest0-21swapper/011:05:150
22963996030,19cyclictest14-21ksoftirqd/007:55:150
22963996024,31cyclictest243-21systemd-journal08:52:550
22963996023,32cyclictest3364-21aten2.4-expect09:15:180
22963996019,35cyclictest0-21swapper/007:15:140
22967995937,8cyclictest26-21ksoftirqd/109:40:301
22967995936,8cyclictest26-21ksoftirqd/110:00:351
22967995936,17cyclictest26-21ksoftirqd/107:40:171
22967995930,12cyclictest26-21ksoftirqd/107:10:201
22967995922,11cyclictest26-21ksoftirqd/108:48:081
22967995916,38cyclictest26-21ksoftirqd/107:50:391
2296399593,20cyclictest562-21runrttasks07:45:230
2296399593,20cyclictest562-21runrttasks07:45:230
22963995931,16cyclictest0-21swapper/008:00:140
22967995837,8cyclictest26-21ksoftirqd/109:25:261
22967995836,8cyclictest26-21ksoftirqd/109:30:191
22967995836,8cyclictest26-21ksoftirqd/109:30:191
22967995836,8cyclictest26-21ksoftirqd/109:05:291
22967995835,8cyclictest26-21ksoftirqd/107:25:121
22967995824,14cyclictest26-21ksoftirqd/112:00:001
22967995824,13cyclictest26-21ksoftirqd/107:50:001
22967995824,13cyclictest26-21ksoftirqd/107:50:001
22967995821,20cyclictest26-21ksoftirqd/108:30:011
22967995820,14cyclictest26-21ksoftirqd/111:50:051
22967995812,41cyclictest26-21ksoftirqd/110:55:311
2296399586,12cyclictest14-21ksoftirqd/008:30:010
2296399585,23cyclictest14-21ksoftirqd/008:15:020
2296399583,50cyclictest32009-21awk09:05:010
22963995831,15cyclictest0-21swapper/012:25:120
22963995830,16cyclictest0-21swapper/012:35:110
22963995829,16cyclictest0-21swapper/007:25:150
22963995828,18cyclictest0-21swapper/007:40:120
22963995813,18cyclictest0-21swapper/010:10:140
22963995813,17cyclictest0-21swapper/009:25:120
22963995812,15cyclictest0-21swapper/011:40:120
22963995811,7cyclictest151rcu_preempt08:15:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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