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2026-05-27 - 12:10
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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 Wed May 27, 2026 00:46:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
211993499114113,1cyclictest2266177-21df_inode23:35:144
21199349911314,99cyclictest0-21swapper/400:10:164
2119934999535,39cyclictest1086-21runrttasks23:45:504
2119934998729,39cyclictest2124296-21ld19:15:204
2119934998628,19cyclictest191rcu_preempt22:45:164
211993499857,59cyclictest2271134-21kworker/u32:5+events_unbound00:20:484
2119934997978,1cyclictest2228675-21ntpq22:25:204
211993499780,59cyclictest2264798-21grep23:30:224
2119934997557,18cyclictest2119929-21cyclictest00:07:364
2119934997536,39cyclictest2143333-21ntpq19:50:204
2119934997335,19cyclictest2247472-21if_err_enxbe3af23:00:164
2119934997153,18cyclictest0-21swapper/419:50:004
2119934996930,39cyclictest0-21swapper/419:25:404
2119934996829,19cyclictest0-21swapper/422:30:354
2119934996810,39cyclictest2125725-21kworker/u32:4+events_unbound19:35:124
2119934996728,19cyclictest0-21swapper/420:34:204
2119934996728,19cyclictest0-21swapper/420:34:204
2119934996648,18cyclictest0-21swapper/420:50:174
2119934996648,0cyclictest0-21swapper/419:11:284
2119934996628,38cyclictest0-21swapper/400:27:164
2119934996526,39cyclictest0-21swapper/419:21:524
211993499635,39cyclictest2246433-21munin-run23:00:024
2119934996244,18cyclictest2270735-21systemctl23:45:004
211993499613,39cyclictest2195267-21cat21:25:164
2119934995436,18cyclictest2193655-21sed21:20:234
2119934995435,19cyclictest601ktimers/423:59:064
2119934995419,35cyclictest0-21swapper/423:16:084
2119934995419,35cyclictest0-21swapper/422:13:004
2119934995419,35cyclictest0-21swapper/400:30:584
2119934995419,35cyclictest0-21swapper/400:30:584
2119934995419,15cyclictest0-21swapper/421:02:544
2119934995419,15cyclictest0-21swapper/420:58:364
2119934995419,15cyclictest0-21swapper/420:48:594
2119934995416,19cyclictest2222275-21/usr/sbin/munin22:15:124
2119934995414,39cyclictest0-21swapper/422:50:154
2119934995334,19cyclictest591rcuc/423:20:164
2119934995319,34cyclictest0-21swapper/421:40:124
2119934995319,34cyclictest0-21swapper/420:40:164
2119934995319,34cyclictest0-21swapper/420:40:164
2119934995319,34cyclictest0-21swapper/420:20:164
2119934995319,34cyclictest0-21swapper/420:20:164
2119934995319,34cyclictest0-21swapper/420:16:164
2119934995319,15cyclictest0-21swapper/422:05:244
2119934995314,39cyclictest0-21swapper/420:27:344
2119934995314,39cyclictest0-21swapper/420:27:334
2119934995314,39cyclictest0-21swapper/420:03:324
2119934995314,19cyclictest0-21swapper/423:06:224
2119934995314,19cyclictest0-21swapper/419:56:484
2119934995314,19cyclictest0-21swapper/419:56:484
2119934995314,19cyclictest0-21swapper/400:36:564
2119930995315,19cyclictest2119929-21cyclictest21:00:160
2119930995313,39cyclictest0-21swapper/019:30:140
2119934995233,19cyclictest0-21swapper/421:35:444
2119934995233,19cyclictest0-21swapper/419:34:124
2119934995233,0cyclictest0-21swapper/419:43:594
2119934995214,19cyclictest2227396-21munin-run22:25:024
2119934995213,39cyclictest0-21swapper/422:42:334
2119934995213,39cyclictest0-21swapper/421:46:574
2119934995134,17cyclictest0-21swapper/423:53:594
2119934995133,18cyclictest0-21swapper/423:10:324
2119934995133,18cyclictest0-21swapper/421:59:154
2119934995133,18cyclictest0-21swapper/421:06:124
2119934995133,18cyclictest0-21swapper/400:15:164
2119934995132,19cyclictest0-21swapper/421:53:404
2119934995132,19cyclictest0-21swapper/420:13:564
2119934995113,19cyclictest2185824-21cron21:10:024
2119934995112,39cyclictest2215343-21python322:00:244
2119930995112,39cyclictest0-21swapper/019:55:140
2119930995112,39cyclictest0-21swapper/019:55:130
2119934995032,18cyclictest0-21swapper/420:09:564
2119934995031,19cyclictest0-21swapper/422:36:004
2119934995031,19cyclictest0-21swapper/421:33:474
2119934995031,19cyclictest0-21swapper/421:17:564
2119934995031,0cyclictest0-21swapper/420:37:364
2119934995011,20cyclictest2280073-21expr00:00:144
2119930995012,19cyclictest0-21swapper/019:15:160
2119930994910,19cyclictest0-21swapper/019:45:140
2119934994830,18cyclictest0-21swapper/423:26:244
2119931994810,19cyclictest0-21swapper/122:10:161
2119930994810,19cyclictest0-21swapper/022:00:170
211993199457,19cyclictest0-21swapper/121:50:171
211993099446,19cyclictest0-21swapper/020:20:180
211993099446,19cyclictest0-21swapper/020:20:180
211993099401,38cyclictest0-21swapper/020:35:170
211993199390,38cyclictest0-21swapper/120:25:171
211993199390,38cyclictest0-21swapper/120:25:161
2119934993820,18cyclictest0-21swapper/419:10:024
2119931993837,1cyclictest331ktimers/120:10:161
2119931993812,19cyclictest0-21swapper/123:15:141
2119931993711,19cyclictest0-21swapper/123:05:161
2119930993718,0cyclictest0-21swapper/021:25:160
211993699360,36cyclictest0-21swapper/621:10:176
211993299360,17cyclictest0-21swapper/221:20:162
211993199360,17cyclictest0-21swapper/120:00:161
211993099360,17cyclictest0-21swapper/020:45:160
211993099360,16cyclictest0-21swapper/021:20:160
211993699350,15cyclictest0-21swapper/620:45:166
211993399350,35cyclictest0-21swapper/322:50:173
211993399350,35cyclictest0-21swapper/300:25:143
211993399350,34cyclictest0-21swapper/319:10:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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