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2025-12-15 - 12:13
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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 rack3slot6.osadl.org (updated Mon Dec 15, 2025 00:44:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
239521130,7sleep1251rcuc/120:35:421
785210728,67sleep00-21swapper/019:05:140
22599910760,26cyclictest26-21ksoftirqd/123:10:131
2255999776,12cyclictest14-21ksoftirqd/019:20:150
2255999563,19cyclictest0-21swapper/020:10:140
2259999252,22cyclictest26-21ksoftirqd/123:25:151
2255999066,12cyclictest0-21swapper/000:15:140
2255998970,10cyclictest14-21ksoftirqd/021:45:220
2255998863,14cyclictest14-21ksoftirqd/019:55:220
2255998757,17cyclictest0-21swapper/019:10:200
2255998654,17cyclictest14-21ksoftirqd/020:40:160
2255998559,15cyclictest14-21ksoftirqd/023:45:160
2255998556,16cyclictest14-21ksoftirqd/020:30:120
2255998555,19cyclictest14-21ksoftirqd/022:35:170
2255998555,18cyclictest14-21ksoftirqd/021:05:140
2259998421,31cyclictest26-21ksoftirqd/123:45:151
2255998456,18cyclictest14-21ksoftirqd/023:20:120
2255998155,16cyclictest14-21ksoftirqd/022:55:160
2255998155,15cyclictest14-21ksoftirqd/023:10:160
2255998055,16cyclictest14-21ksoftirqd/000:25:140
2255997951,18cyclictest14-21ksoftirqd/000:30:140
2255997849,22cyclictest14-21ksoftirqd/021:00:140
2255997748,17cyclictest14-21ksoftirqd/020:05:150
2255997651,17cyclictest14-21ksoftirqd/023:50:150
2255997648,22cyclictest14-21ksoftirqd/023:05:140
2255997648,17cyclictest14-21ksoftirqd/023:00:160
2255997545,20cyclictest14-21ksoftirqd/021:35:480
192927532,30sleep10-21swapper/119:09:001
2255997445,17cyclictest14-21ksoftirqd/020:20:180
139332740,5chrt13934-21/usr/sbin/munin21:10:180
2255997243,18cyclictest14-21ksoftirqd/023:30:160
2255997042,19cyclictest14-21ksoftirqd/022:20:150
2255997041,17cyclictest0-21swapper/020:15:130
2255997034,22cyclictest14-21ksoftirqd/021:30:150
2255996943,21cyclictest14-21ksoftirqd/023:15:130
2255996942,22cyclictest14-21ksoftirqd/021:50:160
2255996940,23cyclictest14-21ksoftirqd/000:00:150
2255996841,23cyclictest14-21ksoftirqd/019:35:150
2255996841,23cyclictest14-21ksoftirqd/019:35:150
2255996840,18cyclictest0-21swapper/020:50:150
2255996839,22cyclictest14-21ksoftirqd/022:05:270
2255996832,22cyclictest0-21swapper/023:55:150
2255996827,35cyclictest0-21swapper/019:50:350
2255996739,17cyclictest15979-21apt-get19:45:130
2255996725,36cyclictest14399-21aten2.4-expect19:40:180
2259996627,15cyclictest26-21ksoftirqd/100:35:191
2255996639,19cyclictest14-21ksoftirqd/021:15:380
2255996638,17cyclictest0-21swapper/000:35:160
2255996636,18cyclictest0-21swapper/022:30:140
2255996632,22cyclictest0-21swapper/022:50:160
2255996623,34cyclictest30402-21aten2.4-expect20:25:180
2255996621,36cyclictest29835-21aten2.4-expect21:55:170
2255996620,41cyclictest10783-21aten2.4-expect19:30:170
2255996540,19cyclictest14-21ksoftirqd/022:40:120
2255996521,35cyclictest17297-21aten2.4-expect00:20:180
2255996437,16cyclictest0-21swapper/000:10:120
2255996433,18cyclictest0-21swapper/019:15:110
2255996413,19cyclictest3385-21aten2.4-expect23:40:270
2259996332,18cyclictest26-21ksoftirqd/123:40:251
2255996331,8cyclictest14-21ksoftirqd/000:05:180
2255996237,19cyclictest14-21ksoftirqd/022:45:140
2255996231,24cyclictest14-21ksoftirqd/019:25:260
2255996220,34cyclictest3374-21aten2.4-expect22:10:200
2255996219,20cyclictest24385-21aten2.4-expect21:40:180
2255996218,36cyclictest5028-21aten2.4-expect20:45:160
2255996213,18cyclictest0-21swapper/023:25:160
225599616,17cyclictest1335-21apt-get20:35:190
2255996129,24cyclictest14-21ksoftirqd/021:25:140
2255996116,38cyclictest8541-21aten2.4-expect22:25:150
2255996115,19cyclictest250-21systemd-journal20:01:410
225999607,13cyclictest0-21swapper/123:55:151
2255996013,34cyclictest0-21swapper/022:15:160
74252590,6chrt7427-21ntpq23:50:311
2259995924,22cyclictest26-21ksoftirqd/120:00:121
2255995943,9cyclictest14-21ksoftirqd/021:00:000
2255995917,35cyclictest1219-21aten2.4-expect23:35:170
2255995817,35cyclictest31949-21aten2.4-expect22:00:280
225999576,35cyclictest0-21swapper/121:05:151
2259995635,15cyclictest26-21ksoftirqd/121:40:011
2255995613,36cyclictest17234-21aten2.4-expect21:20:160
2255995613,36cyclictest17234-21aten2.4-expect21:20:160
225999556,34cyclictest0-21swapper/119:40:141
2259995532,17cyclictest448-21dbus-daemon23:40:001
2259995425,17cyclictest26-21ksoftirqd/121:30:341
2259995337,10cyclictest26-21ksoftirqd/121:45:371
2259995336,10cyclictest26-21ksoftirqd/122:30:181
2259995329,19cyclictest17652-21basename22:50:011
2259995322,26cyclictest0-21swapper/122:35:391
225999528,38cyclictest0-21swapper/122:55:311
2259995237,9cyclictest26-21ksoftirqd/120:25:281
2259995236,9cyclictest26-21ksoftirqd/121:00:001
2259995236,10cyclictest26-21ksoftirqd/121:50:311
2259995236,10cyclictest26-21ksoftirqd/121:12:081
2259995236,10cyclictest26-21ksoftirqd/120:20:281
2259995236,10cyclictest26-21ksoftirqd/119:35:221
2259995236,10cyclictest26-21ksoftirqd/119:35:221
2259995235,10cyclictest26-21ksoftirqd/100:23:451
2259995229,18cyclictest15322-21cron00:15:001
2259995227,18cyclictest16999-21cron21:20:001
225999519,10cyclictest0-21swapper/100:25:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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