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2026-03-20 - 09:18
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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 Mar 20, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15209999315,59cyclictest104019-21cut21:50:143
15206997961,0cyclictest0-21swapper/020:35:150
15209997535,19cyclictest127861-21sshd22:32:523
15212997214,19cyclictest0-21swapper/621:35:166
15206996911,38cyclictest0-21swapper/020:10:150
15209996830,19cyclictest71590-21ntpq20:50:203
1520999679,19cyclictest0-21swapper/320:05:013
1520999646,39cyclictest98489-21cut21:40:133
15209996142,0cyclictest876-21mta-sts-daemon00:12:363
15209996022,19cyclictest68789-21cat20:45:173
1520999601,19cyclictest0-21swapper/320:31:263
1520999601,19cyclictest0-21swapper/300:31:383
15209995719,19cyclictest57932-21ntpq20:25:193
15209995618,19cyclictest145504-21hddtemp_smartct23:05:143
1521299550,54cyclictest0-21swapper/619:20:156
15209995517,19cyclictest64830-21cat20:40:013
15209995517,19cyclictest24980-21ntpq19:25:193
15209995516,39cyclictest194255-21/usr/sbin/munin00:35:173
15206995536,19cyclictest0-21swapper/020:25:170
15209995436,18cyclictest0-21swapper/322:48:203
15209995435,19cyclictest74727-21cat20:55:243
15209995415,39cyclictest175337-21telnet00:00:133
15209995415,20cyclictest78423-21munin-run21:05:023
15209995414,20cyclictest0-21swapper/323:48:163
15209995414,20cyclictest0-21swapper/322:50:163
15209995413,40cyclictest0-21swapper/323:30:403
15209995413,40cyclictest0-21swapper/322:43:003
15209995413,40cyclictest0-21swapper/319:31:203
1520999540,54cyclictest0-21swapper/323:18:083
1520999540,15cyclictest0-21swapper/319:38:393
1520999540,15cyclictest0-21swapper/319:14:303
15209995315,38cyclictest140647-21ntpq22:55:203
15209995315,19cyclictest112830-21ntpq22:05:193
15209995314,39cyclictest0-21swapper/323:50:253
15209995314,39cyclictest0-21swapper/323:10:323
15209995314,39cyclictest0-21swapper/322:15:333
15209995314,39cyclictest0-21swapper/322:04:463
15209995314,39cyclictest0-21swapper/321:46:503
15209995314,39cyclictest0-21swapper/321:36:003
15209995314,39cyclictest0-21swapper/321:34:353
15209995314,39cyclictest0-21swapper/321:21:293
15209995314,39cyclictest0-21swapper/320:05:363
15209995314,39cyclictest0-21swapper/319:56:183
15209995314,39cyclictest0-21swapper/319:41:223
15209995314,19cyclictest0-21swapper/322:21:003
15209995313,39cyclictest0-21swapper/320:15:323
15209995313,20cyclictest0-21swapper/322:26:163
15209995313,20cyclictest0-21swapper/322:12:003
15209995313,20cyclictest0-21swapper/321:59:083
15209995313,20cyclictest0-21swapper/320:43:523
15209995313,20cyclictest0-21swapper/320:13:403
15209995313,20cyclictest0-21swapper/319:22:483
15209995313,20cyclictest0-21swapper/300:28:353
1520999530,14cyclictest0-21swapper/300:19:163
15206995314,39cyclictest0-21swapper/019:15:150
15209995214,19cyclictest0-21swapper/323:21:103
15209995213,39cyclictest0-21swapper/323:57:063
15209995213,39cyclictest0-21swapper/323:38:543
15209995213,39cyclictest0-21swapper/322:37:243
15209995213,39cyclictest0-21swapper/321:14:393
15209995213,39cyclictest0-21swapper/321:05:063
15209995213,39cyclictest0-21swapper/319:53:503
15209995213,39cyclictest0-21swapper/300:20:523
15209995213,39cyclictest0-21swapper/300:07:103
15209995213,19cyclictest0-21swapper/321:27:323
15209995213,19cyclictest0-21swapper/321:17:563
15209995212,20cyclictest0-21swapper/323:02:283
15207995214,19cyclictest0-21swapper/100:20:141
15206995213,38cyclictest0-21swapper/022:45:150
15212995112,39cyclictest0-21swapper/622:30:146
15209995133,18cyclictest0-21swapper/323:43:563
15209995112,39cyclictest0-21swapper/320:20:323
15207995112,39cyclictest0-21swapper/120:35:151
15210995012,19cyclictest0-21swapper/420:15:174
15212994911,19cyclictest0-21swapper/622:05:156
15212994911,19cyclictest0-21swapper/620:45:156
15209994931,18cyclictest0-21swapper/319:45:543
1521299478,20cyclictest0-21swapper/623:20:156
15212994710,18cyclictest0-21swapper/600:35:166
1521099478,39cyclictest0-21swapper/420:10:174
1521299457,19cyclictest0-21swapper/623:10:156
1520999445,39cyclictest0-21swapper/319:15:513
1520699446,19cyclictest0-21swapper/021:50:150
1520999434,39cyclictest0-21swapper/323:28:423
1520899431,19cyclictest0-21swapper/222:20:152
1520699430,43cyclictest0-21swapper/019:40:210
15213994242,0cyclictest0-21swapper/723:50:167
1521099413,19cyclictest0-21swapper/423:40:154
1520699413,19cyclictest0-21swapper/022:15:140
1520699413,19cyclictest0-21swapper/019:50:140
1520899403,37cyclictest0-21swapper/219:53:202
15213993921,18cyclictest0-21swapper/720:05:157
15213993820,18cyclictest0-21swapper/723:15:147
1521399380,37cyclictest0-21swapper/723:40:157
15210993838,0cyclictest0-21swapper/420:40:024
15208993814,19cyclictest0-21swapper/220:25:172
1521099370,18cyclictest0-21swapper/421:50:144
1521099370,18cyclictest0-21swapper/400:25:164
15212993636,0cyclictest0-21swapper/623:51:536
1521299360,17cyclictest0-21swapper/620:25:166
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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