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2026-03-14 - 10:39
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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 rackfslot7.osadl.org (updated Sat Mar 14, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
897630991160,17cyclictest0-21swapper/219:15:152
8976359910424,39cyclictest1086-21runrttasks00:15:407
897635999392,0cyclictest1029545-21users23:05:257
897635999011,39cyclictest1069171-21kworker/u32:1+events_unbound00:30:127
897635999011,39cyclictest1069171-21kworker/u32:1+events_unbound00:30:127
89763599813,59cyclictest941022-21ntp_states20:25:207
897635997739,19cyclictest101550irq/39-eno2-TxRx-023:10:127
897635997214,19cyclictest0-21swapper/719:22:067
897635997132,19cyclictest101550irq/39-eno2-TxRx-021:00:147
897635997113,39cyclictest968609-21pmu-power21:15:207
897635997113,20cyclictest0-21swapper/723:22:307
897635997113,19cyclictest0-21swapper/721:51:467
897631996911,19cyclictest0-21swapper/300:20:183
897635996728,19cyclictest0-21swapper/723:25:027
89763599665,59cyclictest894743-21kworker/u32:1+events_unbound19:15:127
89763599645,58cyclictest920090-21kworker/u32:4+events_unbound20:05:367
897635996426,38cyclictest0-21swapper/721:05:127
897635996425,39cyclictest0-21swapper/721:29:567
897635996425,21cyclictest0-21swapper/720:57:387
89763599635,39cyclictest993184-21ntp_states22:00:207
89763599635,39cyclictest914644-21kworker/u32:0+events_unbound19:40:247
897635996345,18cyclictest861rcuc/722:54:207
897635996324,39cyclictest0-21swapper/722:37:087
897635996323,39cyclictest0-21swapper/723:46:247
897635996323,39cyclictest0-21swapper/722:22:407
897635996323,39cyclictest0-21swapper/719:57:207
897635996323,39cyclictest0-21swapper/719:28:167
897635996223,39cyclictest0-21swapper/722:11:287
897635996223,39cyclictest0-21swapper/720:31:527
897635996223,39cyclictest0-21swapper/720:15:107
897635996223,39cyclictest0-21swapper/719:30:567
897635996223,39cyclictest0-21swapper/700:26:247
897635996222,39cyclictest0-21swapper/723:19:137
897635996142,19cyclictest894743-21kworker/u32:1+events_unbound19:35:167
89763599612,39cyclictest0-21swapper/700:09:327
897635996122,39cyclictest0-21swapper/723:42:487
897635996122,39cyclictest0-21swapper/721:42:327
897635996122,39cyclictest0-21swapper/721:11:567
897635996122,39cyclictest0-21swapper/700:37:207
897635996122,39cyclictest0-21swapper/700:11:297
897635996022,19cyclictest917374-21/usr/sbin/munin19:45:207
897635996021,39cyclictest0-21swapper/720:10:407
897635996020,39cyclictest0-21swapper/723:00:447
897635995920,39cyclictest0-21swapper/722:32:127
897635995920,39cyclictest0-21swapper/721:39:367
897635995719,20cyclictest0-21swapper/720:44:067
897635995619,37cyclictest0-21swapper/720:50:427
897635995617,19cyclictest101550irq/39-eno2-TxRx-023:38:347
897635995519,35cyclictest0-21swapper/722:26:307
897635995519,16cyclictest0-21swapper/721:48:187
897635995514,40cyclictest0-21swapper/721:30:067
897635995418,18cyclictest101550irq/39-eno2-TxRx-019:10:027
897635995416,19cyclictest0-21swapper/722:07:187
897635995415,39cyclictest1023435-21ntpq22:55:207
897635995414,40cyclictest0-21swapper/720:46:547
897635995414,39cyclictest0-21swapper/722:15:127
897635995414,19cyclictest0-21swapper/721:20:507
897635995414,19cyclictest0-21swapper/719:13:187
897635995414,0cyclictest0-21swapper/720:23:467
897635995414,0cyclictest0-21swapper/720:23:467
897635995414,0cyclictest0-21swapper/720:04:067
89763599540,15cyclictest0-21swapper/722:00:027
897635995314,21cyclictest0-21swapper/722:40:547
897635995314,21cyclictest0-21swapper/700:01:307
897635995314,19cyclictest0-21swapper/723:56:387
897635995314,19cyclictest0-21swapper/723:56:387
897635995314,19cyclictest0-21swapper/723:51:157
897635995314,19cyclictest0-21swapper/723:31:267
897635995314,19cyclictest0-21swapper/720:37:307
897635995314,19cyclictest0-21swapper/719:50:507
897635995314,19cyclictest0-21swapper/700:24:267
897635995313,21cyclictest0-21swapper/722:46:387
897631995315,19cyclictest0-21swapper/323:10:143
897630995214,19cyclictest0-21swapper/223:00:152
897630995214,19cyclictest0-21swapper/200:25:152
897634995113,19cyclictest0-21swapper/622:05:146
897631995113,19cyclictest0-21swapper/323:25:163
897631995112,39cyclictest0-21swapper/323:35:153
89763499479,19cyclictest0-21swapper/619:50:176
89763099446,19cyclictest0-21swapper/219:25:172
89763499435,19cyclictest0-21swapper/622:20:156
89763499423,39cyclictest771rcuc/619:35:156
89763299424,19cyclictest0-21swapper/421:00:154
89763099423,39cyclictest0-21swapper/222:55:152
89763499401,39cyclictest0-21swapper/620:20:156
89763499401,39cyclictest0-21swapper/620:20:146
897631994021,19cyclictest0-21swapper/300:25:153
89763099401,39cyclictest0-21swapper/220:00:142
89763099401,39cyclictest0-21swapper/200:20:182
89762899401,19cyclictest0-21swapper/023:45:150
89763099390,38cyclictest0-21swapper/220:05:152
89763499380,19cyclictest0-21swapper/600:15:136
89763299380,37cyclictest0-21swapper/419:30:154
89763099380,19cyclictest0-21swapper/221:20:152
89763499370,18cyclictest0-21swapper/619:25:166
89763299370,18cyclictest0-21swapper/400:30:144
89763299370,18cyclictest0-21swapper/400:30:144
897631993719,18cyclictest0-21swapper/322:45:193
897634993618,18cyclictest0-21swapper/623:50:156
89763499360,17cyclictest0-21swapper/621:25:156
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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