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2026-04-23 - 11:15
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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 Thu Apr 23, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
375734899900,2cyclictest0-21swapper/119:45:161
375735099634,39cyclictest3768198-21sed19:30:013
3757350996022,38cyclictest0-21swapper/323:06:093
3757350995820,19cyclictest3936078-21cat00:35:133
3757350995738,19cyclictest511ktimers/322:06:573
3757350995719,19cyclictest3928578-21irqstats00:20:173
3757350995715,39cyclictest3932219-21unixbench-2d00:25:233
3757350995618,19cyclictest3844166-21grep21:45:213
375735099560,55cyclictest0-21swapper/320:43:573
3757350995536,19cyclictest511ktimers/323:21:333
3757350995517,19cyclictest3879424-21collect222:50:193
3757350995516,20cyclictest3798590-21/usr/sbin/munin20:25:173
3757350995515,39cyclictest0-21swapper/321:39:213
3757350995515,39cyclictest0-21swapper/319:18:213
3757350995514,4cyclictest0-21swapper/319:32:113
3757350995514,40cyclictest3834475-21grep21:30:133
3757350995514,19cyclictest3758583-21irqstats19:10:153
3757350995513,40cyclictest3763147-21kworker/u32:4+flush-8:020:05:013
3757350995513,39cyclictest3832813-21ntpq21:25:193
3757350995419,35cyclictest0-21swapper/319:58:573
3757350995419,15cyclictest0-21swapper/322:44:213
3757350995419,15cyclictest0-21swapper/322:28:093
3757350995419,15cyclictest0-21swapper/321:53:053
3757350995419,15cyclictest0-21swapper/320:21:533
3757350995419,15cyclictest0-21swapper/320:19:053
3757350995418,36cyclictest0-21swapper/319:55:013
3757350995414,39cyclictest0-21swapper/321:16:293
3757350995414,39cyclictest0-21swapper/319:41:373
3757347995414,39cyclictest0-21swapper/022:45:150
3757353995313,39cyclictest0-21swapper/622:05:156
3757350995333,19cyclictest0-21swapper/323:31:453
3757350995333,19cyclictest0-21swapper/323:27:093
3757350995319,15cyclictest0-21swapper/322:55:453
3757350995319,15cyclictest0-21swapper/319:45:493
3757350995318,35cyclictest0-21swapper/321:10:013
3757350995315,19cyclictest0-21swapper/320:31:053
3757350995314,39cyclictest0-21swapper/323:13:013
3757350995314,39cyclictest0-21swapper/323:02:213
3757350995314,39cyclictest0-21swapper/319:36:473
3757350995314,39cyclictest0-21swapper/300:08:333
3757350995314,19cyclictest0-21swapper/320:56:093
3757350995313,39cyclictest0-21swapper/320:47:133
3757350995313,39cyclictest0-21swapper/300:12:593
3757347995313,39cyclictest0-21swapper/023:20:160
3757353995214,19cyclictest0-21swapper/623:45:156
3757350995233,19cyclictest874-21mta-sts-daemon20:54:213
3757350995233,19cyclictest0-21swapper/323:58:333
3757350995233,19cyclictest0-21swapper/323:49:173
3757350995233,19cyclictest0-21swapper/322:18:133
3757350995233,19cyclictest0-21swapper/321:56:413
3757350995233,19cyclictest0-21swapper/321:00:053
3757350995233,19cyclictest0-21swapper/320:36:493
3757350995233,19cyclictest0-21swapper/320:10:573
3757350995233,19cyclictest0-21swapper/300:04:133
3757350995232,19cyclictest0-21swapper/323:43:133
3757350995213,39cyclictest3868560-21ntpq22:30:213
3757350995213,39cyclictest0-21swapper/323:36:053
3757350995213,39cyclictest0-21swapper/322:11:013
3757350995213,39cyclictest0-21swapper/321:43:533
3757350995213,39cyclictest0-21swapper/300:30:233
3757350995213,19cyclictest0-21swapper/322:46:333
3757349995213,39cyclictest0-21swapper/219:50:162
3757348995212,39cyclictest0-21swapper/100:30:161
3757352995112,20cyclictest0-21swapper/519:25:165
3757350995133,18cyclictest0-21swapper/323:50:413
3757350995133,18cyclictest0-21swapper/322:21:213
3757350995133,18cyclictest0-21swapper/320:09:253
3757350995132,19cyclictest0-21swapper/321:22:573
3757350995132,19cyclictest0-21swapper/300:18:173
3757353995012,19cyclictest0-21swapper/619:55:176
3757350995031,19cyclictest0-21swapper/322:01:253
3757350995031,19cyclictest0-21swapper/322:01:253
3757350995031,19cyclictest0-21swapper/319:24:373
3757350995011,39cyclictest0-21swapper/323:17:133
3757350995011,39cyclictest0-21swapper/322:36:473
3757352994931,18cyclictest0-21swapper/523:05:165
3757353994810,19cyclictest0-21swapper/619:20:156
375735399478,39cyclictest0-21swapper/623:35:166
375735399468,19cyclictest0-21swapper/621:35:146
375735299467,39cyclictest0-21swapper/520:10:165
375735199468,19cyclictest591rcuc/420:50:154
375735199468,19cyclictest0-21swapper/400:25:164
375734999468,19cyclictest0-21swapper/221:55:152
375734899468,19cyclictest0-21swapper/123:15:151
375734799468,19cyclictest0-21swapper/022:10:160
375734799457,19cyclictest0-21swapper/021:35:140
375734799455,39cyclictest0-21swapper/020:40:160
375735599446,38cyclictest0-21swapper/700:15:157
375735599446,19cyclictest0-21swapper/722:00:167
375735599446,19cyclictest0-21swapper/722:00:167
375735299445,20cyclictest0-21swapper/521:15:175
375734899445,39cyclictest0-21swapper/123:05:161
375735599434,39cyclictest0-21swapper/722:25:167
3757349994222,19cyclictest0-21swapper/220:20:162
375734899424,19cyclictest0-21swapper/120:00:171
375734799411,39cyclictest0-21swapper/020:30:160
375735399402,19cyclictest0-21swapper/622:55:166
375735399402,19cyclictest0-21swapper/621:25:156
375735299402,19cyclictest0-21swapper/521:55:155
375735299402,19cyclictest0-21swapper/500:00:175
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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