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2025-10-29 - 20:54
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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 highest latencies:
System rack3slot6.osadl.org (updated Wed Oct 29, 2025 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24456991197,93cyclictest0-21swapper/111:25:121
244519910579,15cyclictest14-21ksoftirqd/008:45:140
244519910579,15cyclictest14-21ksoftirqd/008:45:140
244519910471,18cyclictest14-21ksoftirqd/010:10:140
244519910072,17cyclictest14-21ksoftirqd/012:05:170
24451999868,20cyclictest14-21ksoftirqd/011:35:160
24451999666,17cyclictest14-21ksoftirqd/010:20:140
24451999563,19cyclictest14-21ksoftirqd/009:30:160
24451999364,19cyclictest14-21ksoftirqd/008:55:140
24451999162,19cyclictest14-21ksoftirqd/012:15:140
24451999155,22cyclictest14-21ksoftirqd/009:00:160
24451999059,21cyclictest14-21ksoftirqd/012:10:150
24451999059,21cyclictest14-21ksoftirqd/012:10:140
24451998853,24cyclictest14-21ksoftirqd/008:25:150
24451998853,24cyclictest14-21ksoftirqd/008:25:140
24451998811,63cyclictest0-21swapper/007:55:140
24451998656,19cyclictest14-21ksoftirqd/007:30:130
24451998655,21cyclictest14-21ksoftirqd/012:20:160
24451998655,21cyclictest14-21ksoftirqd/010:25:140
24451998655,19cyclictest14-21ksoftirqd/012:30:150
24451998553,19cyclictest14-21ksoftirqd/009:15:180
24451998461,16cyclictest14-21ksoftirqd/011:10:130
24451998453,19cyclictest14-21ksoftirqd/009:50:140
24451998451,19cyclictest14-21ksoftirqd/010:30:150
24451998450,19cyclictest14-21ksoftirqd/007:50:170
24451998413,61cyclictest0-21swapper/008:15:170
24451998350,22cyclictest14-21ksoftirqd/010:45:140
24451998251,20cyclictest14-21ksoftirqd/008:10:170
24451998155,17cyclictest14-21ksoftirqd/012:00:130
2398028126,44sleep10-21swapper/107:07:051
2270628122,48sleep00-21swapper/007:05:150
24456998032,29cyclictest0-21swapper/109:30:151
24451998050,20cyclictest14-21ksoftirqd/012:25:140
2445199778,56cyclictest2536-21diskmemload09:10:150
24451997746,20cyclictest14-21ksoftirqd/011:25:140
24451997744,21cyclictest14-21ksoftirqd/008:00:160
24451997713,50cyclictest0-21swapper/007:20:170
2445699767,20cyclictest0-21swapper/107:55:141
24451997643,20cyclictest14-21ksoftirqd/009:35:190
24451997611,50cyclictest0-21swapper/010:15:170
24451997546,20cyclictest14-21ksoftirqd/008:30:130
24456997435,16cyclictest26-21ksoftirqd/111:45:391
24451997413,47cyclictest0-21swapper/008:40:160
24451997411,51cyclictest0-21swapper/011:40:150
24451997341,21cyclictest0-21swapper/010:40:270
24451997310,52cyclictest504-21snmpd07:25:140
24456997231,26cyclictest0-21swapper/109:45:131
24451997233,27cyclictest14-21ksoftirqd/010:05:150
24451997131,27cyclictest14-21ksoftirqd/010:00:160
258222700,6chrt0-21swapper/107:10:391
2445699706,48cyclictest0-21swapper/111:40:131
24451997031,28cyclictest14-21ksoftirqd/007:40:160
24451996928,29cyclictest14-21ksoftirqd/011:20:150
24451996923,12cyclictest14-21ksoftirqd/007:38:170
24451996911,48cyclictest0-21swapper/011:15:170
24451996829,27cyclictest14-21ksoftirqd/009:05:130
24451996823,33cyclictest14-21ksoftirqd/011:00:150
2445699667,45cyclictest0-21swapper/112:25:131
24451996637,18cyclictest0-21swapper/010:50:150
24451996636,20cyclictest0-21swapper/009:45:140
24451996632,25cyclictest14-21ksoftirqd/011:45:160
24451996619,41cyclictest480-21aten2.4-expect10:35:230
2445699654,20cyclictest151rcu_preempt10:50:131
2445199655,46cyclictest0-21swapper/007:45:170
24451996532,21cyclictest0-21swapper/011:30:120
24451996528,24cyclictest0-21swapper/011:55:170
24451996526,27cyclictest14-21ksoftirqd/010:55:120
24451996526,27cyclictest14-21ksoftirqd/010:55:110
24451996524,29cyclictest14-21ksoftirqd/009:40:170
2445699646,13cyclictest0-21swapper/111:30:121
24456996424,23cyclictest0-21swapper/109:20:121
2445199647,45cyclictest0-21swapper/011:05:170
24451996416,14cyclictest14-21ksoftirqd/011:50:050
24451996415,8cyclictest151rcu_preempt07:15:030
24456996333,21cyclictest10567-21apt-get08:00:141
24451996331,21cyclictest0-21swapper/008:35:150
24451996320,18cyclictest12462-21aten2.4-expect08:05:180
24456996233,17cyclictest26-21ksoftirqd/110:13:351
2445699622,18cyclictest28347-21grep11:50:411
24456996213,42cyclictest0-21swapper/111:55:281
24451996227,14cyclictest14-21ksoftirqd/009:30:010
24451996223,28cyclictest0-21swapper/012:35:150
24451996220,29cyclictest14-21ksoftirqd/008:50:140
24451996131,19cyclictest0-21swapper/009:20:130
24456996030,18cyclictest26-21ksoftirqd/107:24:501
2445199602,41cyclictest14-21ksoftirqd/007:10:360
24456995942,10cyclictest26-21ksoftirqd/109:05:001
24456995937,15cyclictest26-21ksoftirqd/107:45:281
24456995935,18cyclictest26-21ksoftirqd/108:15:181
24456995913,11cyclictest0-21swapper/107:38:581
24451995927,19cyclictest0-21swapper/008:20:150
2445699589,13cyclictest151rcu_preempt09:10:001
24456995841,10cyclictest26-21ksoftirqd/107:55:001
24456995839,11cyclictest26-21ksoftirqd/107:15:031
24456995838,12cyclictest26-21ksoftirqd/111:10:001
24456995835,9cyclictest26-21ksoftirqd/110:05:201
24456995834,9cyclictest26-21ksoftirqd/108:25:361
24456995834,9cyclictest26-21ksoftirqd/108:25:361
24456995829,17cyclictest26-21ksoftirqd/110:42:021
24456995741,10cyclictest26-21ksoftirqd/112:05:191
24456995740,11cyclictest504-21snmpd12:14:221
24456995740,11cyclictest504-21snmpd12:14:211
24456995739,11cyclictest26-21ksoftirqd/112:25:011
24456995739,10cyclictest26-21ksoftirqd/111:20:201
24456995735,9cyclictest26-21ksoftirqd/109:10:361
24456995735,16cyclictest26-21ksoftirqd/110:30:181
24456995733,9cyclictest26-21ksoftirqd/110:39:011
24456995731,21cyclictest26-21ksoftirqd/108:40:161
24456995731,18cyclictest26-21ksoftirqd/108:30:141
24456995641,9cyclictest26-21ksoftirqd/110:25:011
24456995639,9cyclictest26-21ksoftirqd/110:30:011
24456995639,10cyclictest26-21ksoftirqd/112:05:011
24456995639,10cyclictest26-21ksoftirqd/110:50:001
24456995639,10cyclictest26-21ksoftirqd/109:15:051
24456995639,10cyclictest26-21ksoftirqd/107:35:011
24456995639,10cyclictest26-21ksoftirqd/107:25:231
24456995638,11cyclictest26-21ksoftirqd/110:15:251
24456995638,10cyclictest26-21ksoftirqd/111:36:151
24456995638,10cyclictest26-21ksoftirqd/111:15:301
24456995633,9cyclictest26-21ksoftirqd/109:55:291
24456995633,8cyclictest26-21ksoftirqd/107:40:261
24456995633,17cyclictest26-21ksoftirqd/112:15:371
24456995632,18cyclictest26-21ksoftirqd/111:10:131
24456995613,38cyclictest0-21swapper/110:55:381
24456995613,38cyclictest0-21swapper/110:55:371
24451995616,31cyclictest0-21swapper/009:55:120
267252553,15sleep126357-21/usr/sbin/munin08:45:351
267252553,15sleep126357-21/usr/sbin/munin08:45:341
24456995539,9cyclictest26-21ksoftirqd/111:01:351
24456995538,10cyclictest26-21ksoftirqd/112:30:311
24456995538,10cyclictest26-21ksoftirqd/108:15:011
24456995537,10cyclictest26-21ksoftirqd/112:35:331
24456995537,10cyclictest26-21ksoftirqd/110:00:351
24456995537,10cyclictest26-21ksoftirqd/108:35:341
24456995536,10cyclictest26-21ksoftirqd/109:40:211
24456995533,17cyclictest26-21ksoftirqd/108:55:361
24456995532,17cyclictest26-21ksoftirqd/108:20:131
24456995530,18cyclictest26-21ksoftirqd/109:25:341
24456995437,10cyclictest26-21ksoftirqd/108:55:011
24456995437,10cyclictest26-21ksoftirqd/108:05:351
24456995431,18cyclictest26-21ksoftirqd/109:50:371
24456995336,10cyclictest26-21ksoftirqd/109:35:231
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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