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2026-07-24 - 10:36
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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 Fri Jul 24, 2026 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2865990998325,39cyclictest1086-21runrttasks00:04:460
2865990997838,20cyclictest2992863-21sed23:00:010
286599099780,59cyclictest2979247-21systemctl22:35:010
2865990997556,19cyclictest3046559-21strings00:35:190
2865994997414,59cyclictest0-21swapper/421:35:164
2865990997335,38cyclictest0-21swapper/021:25:220
2865990997214,19cyclictest2892684-21ntpq19:55:210
2865993997113,39cyclictest52-21ksoftirqd/322:35:153
2865990997012,39cyclictest2986154-21sed22:45:190
2865990996911,39cyclictest2878508-21ntpq19:30:180
2865990996830,38cyclictest0-21swapper/000:23:310
2865990996829,39cyclictest0-21swapper/023:30:310
2865990996829,20cyclictest3041056-21sed00:25:190
2865990996811,39cyclictest2884972-21kworker/u32:4+events_unbound20:38:140
2865990996749,18cyclictest0-21swapper/000:14:470
2865990996748,19cyclictest0-21swapper/021:36:300
2865990996730,18cyclictest875-21mta-sts-daemon00:15:190
2865990996729,38cyclictest0-21swapper/023:04:090
2865996996345,18cyclictest0-21swapper/621:25:166
2865990996325,38cyclictest0-21swapper/021:20:550
286599099624,39cyclictest2899447-21munin-run20:10:010
2865990996224,19cyclictest2938121-21munin-run21:20:010
2865990996121,20cyclictest578272-21kworker/u32:2+events_unbound19:10:030
2865990996021,39cyclictest0-21swapper/021:13:230
2865990995937,18cyclictest2983628-21ntpq22:40:200
2865990995820,19cyclictest3002739-21kworker/0:0+ice00:08:350
2865990995738,19cyclictest171ktimers/019:37:410
2865990995719,18cyclictest0-21swapper/022:15:290
2865990995519,36cyclictest0-21swapper/020:45:100
2865996995414,39cyclictest0-21swapper/619:25:186
2865990995415,39cyclictest0-21swapper/022:10:210
2865990995334,19cyclictest875-21mta-sts-daemon20:11:270
2865990995334,19cyclictest1086-21runrttasks22:05:420
2865990995319,15cyclictest0-21swapper/021:57:220
2865990995319,15cyclictest0-21swapper/019:12:450
2865990995319,14cyclictest0-21swapper/023:57:190
2865990995319,14cyclictest0-21swapper/022:23:350
2865990995319,14cyclictest0-21swapper/021:49:180
2865990995319,14cyclictest0-21swapper/021:00:590
2865990995314,39cyclictest0-21swapper/023:46:150
2865990995314,39cyclictest0-21swapper/023:10:000
2865990995314,39cyclictest0-21swapper/022:27:470
2865990995314,39cyclictest0-21swapper/019:45:110
2865990995314,39cyclictest0-21swapper/019:25:390
2865997995233,19cyclictest0-21swapper/722:40:167
2865994995233,0cyclictest0-21swapper/421:10:174
2865990995219,14cyclictest0-21swapper/020:18:180
2865990995218,34cyclictest0-21swapper/020:22:030
2865990995218,34cyclictest0-21swapper/019:18:230
2865990995213,39cyclictest0-21swapper/023:12:510
2865990995213,39cyclictest0-21swapper/019:24:390
2865997995113,19cyclictest0-21swapper/721:05:187
2865996995113,19cyclictest0-21swapper/619:15:176
2865994995113,19cyclictest0-21swapper/423:25:144
2865993995113,38cyclictest0-21swapper/319:30:153
2865990995133,18cyclictest0-21swapper/020:42:430
2865990995118,14cyclictest0-21swapper/020:34:350
2865990995113,20cyclictest3005285-21cat23:20:190
2865990995112,39cyclictest0-21swapper/023:43:430
2865990995112,39cyclictest0-21swapper/023:27:230
2865990995112,39cyclictest0-21swapper/022:02:350
2865990995112,39cyclictest0-21swapper/021:52:030
2865990995112,39cyclictest0-21swapper/021:42:430
2865990995112,39cyclictest0-21swapper/020:52:550
2865990995112,39cyclictest0-21swapper/020:52:550
2865990995112,39cyclictest0-21swapper/000:33:430
2865997995012,19cyclictest0-21swapper/700:25:167
2865990995011,39cyclictest0-21swapper/023:15:340
2865990995011,39cyclictest0-21swapper/022:51:100
2865990995011,39cyclictest0-21swapper/021:33:550
2865990995011,39cyclictest0-21swapper/019:50:510
2865996994911,19cyclictest0-21swapper/600:20:166
2865994994930,19cyclictest0-21swapper/422:10:164
2865992994911,19cyclictest0-21swapper/223:50:172
2865990994911,19cyclictest2980847-21ntpq22:35:190
2865990994910,39cyclictest0-21swapper/020:27:180
2865996994810,19cyclictest0-21swapper/621:55:176
2865994994810,19cyclictest0-21swapper/420:30:144
2865994994810,19cyclictest0-21swapper/419:25:184
286599099489,39cyclictest2896182-21kworker/0:0+ice20:04:390
286599099489,39cyclictest0-21swapper/023:36:110
286599099489,39cyclictest0-21swapper/019:41:300
286599499478,39cyclictest0-21swapper/423:50:174
286599499468,19cyclictest0-21swapper/423:10:174
286599499468,19cyclictest0-21swapper/421:20:184
286599399468,19cyclictest0-21swapper/321:40:183
286599099466,39cyclictest3021836-21lpstat23:50:180
286599499457,19cyclictest0-21swapper/420:20:144
2865994994522,18cyclictest0-21swapper/421:40:174
286599099457,19cyclictest0-21swapper/021:06:570
2865990994425,19cyclictest0-21swapper/020:59:110
286599699435,38cyclictest0-21swapper/621:15:176
286599499433,39cyclictest0-21swapper/421:30:164
2865994994325,18cyclictest0-21swapper/423:45:144
286599399435,38cyclictest0-21swapper/323:55:163
2865995994224,18cyclictest0-21swapper/519:30:155
286599499424,19cyclictest0-21swapper/420:55:174
286599799413,19cyclictest0-21swapper/722:55:177
286599799413,19cyclictest0-21swapper/720:10:167
286599499413,19cyclictest0-21swapper/420:35:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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