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2025-12-18 - 15:36
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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 Thu Dec 18, 2025 12:45:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30771210336,50sleep00-21swapper/007:05:230
3122229023,16sleep10-21swapper/107:05:491
31797997730,32cyclictest14-21ksoftirqd/008:05:340
31797997350,9cyclictest14-21ksoftirqd/012:03:490
31797997314,51cyclictest0-21swapper/010:00:130
31797997314,51cyclictest0-21swapper/010:00:120
31797997134,22cyclictest14-21ksoftirqd/011:00:180
31797996915,46cyclictest0-21swapper/009:50:130
31797996913,15cyclictest0-21swapper/011:35:160
31797996832,21cyclictest14-21ksoftirqd/011:43:430
31797996832,20cyclictest14-21ksoftirqd/008:50:240
31797996811,49cyclictest21288-21apt-get11:10:170
31797996744,9cyclictest14-21ksoftirqd/010:35:370
31797996731,21cyclictest14-21ksoftirqd/011:28:400
31797996637,9cyclictest14-21ksoftirqd/010:55:100
31797996633,17cyclictest14-21ksoftirqd/010:23:040
31797996615,45cyclictest0-21swapper/011:05:140
31797996543,12cyclictest0-21swapper/007:55:120
31797996540,10cyclictest14-21ksoftirqd/008:47:180
31797996540,10cyclictest14-21ksoftirqd/008:47:170
31797996531,21cyclictest14-21ksoftirqd/012:35:460
31797996448,8cyclictest14-21ksoftirqd/008:55:130
31797996440,9cyclictest14-21ksoftirqd/009:15:010
31797996440,10cyclictest14-21ksoftirqd/012:20:390
31797996439,9cyclictest14-21ksoftirqd/008:24:590
31797996439,11cyclictest14-21ksoftirqd/007:35:010
31797996439,10cyclictest14-21ksoftirqd/012:25:120
31797996439,10cyclictest14-21ksoftirqd/010:10:230
31797996439,10cyclictest14-21ksoftirqd/009:45:300
31797996430,20cyclictest14-21ksoftirqd/010:50:400
31797996413,46cyclictest0-21swapper/008:35:160
31799996339,18cyclictest26-21ksoftirqd/107:30:341
31799996334,23cyclictest26-21ksoftirqd/111:15:351
31797996340,9cyclictest14-21ksoftirqd/008:14:210
31797996339,9cyclictest14-21ksoftirqd/012:20:000
31797996339,9cyclictest14-21ksoftirqd/011:20:140
31797996339,9cyclictest14-21ksoftirqd/009:55:310
31797996339,9cyclictest14-21ksoftirqd/007:40:090
31797996339,10cyclictest14-21ksoftirqd/010:40:310
31797996339,10cyclictest14-21ksoftirqd/009:40:000
31797996338,11cyclictest14-21ksoftirqd/010:17:350
31797996338,10cyclictest14-21ksoftirqd/009:20:120
31797996338,10cyclictest14-21ksoftirqd/008:30:160
31797996338,10cyclictest14-21ksoftirqd/007:45:360
31797996337,11cyclictest14-21ksoftirqd/009:07:490
31797996335,15cyclictest0-21swapper/011:50:150
31797996330,20cyclictest14-21ksoftirqd/007:10:320
31799996238,18cyclictest26-21ksoftirqd/111:45:001
31799996237,18cyclictest26-21ksoftirqd/110:35:251
31797996241,13cyclictest0-21swapper/010:05:130
31797996239,9cyclictest14-21ksoftirqd/009:00:170
31797996239,9cyclictest14-21ksoftirqd/007:15:030
31797996238,9cyclictest14-21ksoftirqd/009:30:160
31797996238,9cyclictest14-21ksoftirqd/009:17:110
31797996238,9cyclictest14-21ksoftirqd/008:18:420
31797996238,9cyclictest14-21ksoftirqd/007:50:320
31797996238,9cyclictest14-21ksoftirqd/007:35:170
31797996238,10cyclictest14-21ksoftirqd/011:55:250
31797996238,10cyclictest14-21ksoftirqd/011:45:290
31799996146,10cyclictest26-21ksoftirqd/112:35:401
31799996138,18cyclictest26-21ksoftirqd/107:25:001
31799996137,18cyclictest26-21ksoftirqd/107:55:001
31797996138,9cyclictest14-21ksoftirqd/012:05:120
31797996138,9cyclictest14-21ksoftirqd/011:15:200
31797996138,9cyclictest14-21ksoftirqd/010:45:190
31797996138,9cyclictest14-21ksoftirqd/009:40:300
31797996138,9cyclictest14-21ksoftirqd/008:00:110
31797996137,9cyclictest14-21ksoftirqd/009:29:140
31797996136,10cyclictest14-21ksoftirqd/007:25:110
31797996130,18cyclictest0-21swapper/008:25:160
31797996130,18cyclictest0-21swapper/008:25:160
31797996112,43cyclictest0-21swapper/007:20:130
31799996046,9cyclictest26-21ksoftirqd/108:05:011
31799996037,18cyclictest26-21ksoftirqd/111:55:291
31799996037,18cyclictest26-21ksoftirqd/111:35:311
31799996037,18cyclictest26-21ksoftirqd/110:45:361
31799996036,19cyclictest26-21ksoftirqd/111:30:221
31799996036,19cyclictest26-21ksoftirqd/111:25:011
31799996036,18cyclictest26-21ksoftirqd/109:10:271
31799996036,18cyclictest26-21ksoftirqd/108:40:301
31799996035,20cyclictest26-21ksoftirqd/109:30:011
31799996035,20cyclictest26-21ksoftirqd/107:39:121
31799996035,19cyclictest26-21ksoftirqd/112:00:221
31799996035,19cyclictest26-21ksoftirqd/111:25:251
3179799607,49cyclictest0-21swapper/010:32:330
31799995945,9cyclictest26-21ksoftirqd/109:15:251
31799995945,9cyclictest26-21ksoftirqd/108:55:151
31799995944,10cyclictest26-21ksoftirqd/112:30:311
31799995937,17cyclictest26-21ksoftirqd/108:55:001
31799995936,18cyclictest26-21ksoftirqd/112:15:001
31799995936,18cyclictest26-21ksoftirqd/108:10:271
31799995936,18cyclictest26-21ksoftirqd/107:15:091
31799995936,17cyclictest26-21ksoftirqd/110:15:421
31799995935,19cyclictest26-21ksoftirqd/111:50:231
31799995935,18cyclictest26-21ksoftirqd/111:45:311
31799995934,19cyclictest26-21ksoftirqd/110:42:291
31799995843,10cyclictest26-21ksoftirqd/107:12:101
31799995842,11cyclictest26-21ksoftirqd/110:50:361
31799995836,17cyclictest26-21ksoftirqd/110:10:331
31799995835,18cyclictest26-21ksoftirqd/110:30:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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