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2026-07-14 - 09:43
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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 rack1slot8.osadl.org (updated Tue Jul 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
119962977954,16sleep10-21swapper/119:05:431
122822698675,16sleep00-21swapper/019:08:330
1245699519444,68cyclictest0-21swapper/019:13:040
1245799443396,15cyclictest28-21ksoftirqd/119:13:041
1245799439405,18cyclictest27022-21strings21:15:231
1245699318265,15cyclictest27028-21ssh21:15:240
124579910113,68cyclictest0-21swapper/120:14:591
228699830,4rtkit-daemon2285-21rtkit-daemon19:48:340
12457998219,44cyclictest0-21swapper/120:36:001
228699810,4rtkit-daemon2285-21rtkit-daemon21:50:110
12457997913,48cyclictest0-21swapper/121:56:581
89512770,8sleep013-21rcu_preempt20:29:230
228699770,12rtkit-daemon0-21swapper/019:23:590
228699750,4rtkit-daemon2285-21rtkit-daemon00:19:130
12457997519,36cyclictest0-21swapper/100:39:591
12456997556,15cyclictest0-21swapper/023:10:590
12456997512,58cyclictest0-21swapper/019:40:590
228699740,4rtkit-daemon2285-21rtkit-daemon23:18:170
228699740,4rtkit-daemon2285-21rtkit-daemon21:24:011
12457997427,30cyclictest0-21swapper/123:59:591
12457997418,34cyclictest0-21swapper/121:15:001
12457997418,34cyclictest0-21swapper/121:14:591
228699730,5rtkit-daemon2285-21rtkit-daemon20:05:151
228699720,31rtkit-daemon2285-21rtkit-daemon22:42:121
228699720,3rtkit-daemon23110-21runrttasks21:06:311
12457997218,35cyclictest0-21swapper/100:19:001
228699710,4rtkit-daemon2285-21rtkit-daemon23:47:430
228699710,4rtkit-daemon2285-21rtkit-daemon21:31:450
228699710,4rtkit-daemon2285-21rtkit-daemon19:34:450
228699710,4rtkit-daemon2285-21rtkit-daemon00:38:240
228699710,4rtkit-daemon2285-21rtkit-daemon00:27:240
228699710,4rtkit-daemon2285-21rtkit-daemon00:11:440
12457997120,34cyclictest0-21swapper/120:59:001
12457997117,35cyclictest0-21swapper/123:35:591
228699700,4rtkit-daemon2285-21rtkit-daemon22:35:571
228699700,4rtkit-daemon2285-21rtkit-daemon22:03:310
228699700,3rtkit-daemon2285-21rtkit-daemon23:44:190
228699700,3rtkit-daemon2285-21rtkit-daemon00:33:141
12457997019,36cyclictest0-21swapper/122:24:581
12457997018,35cyclictest0-21swapper/123:46:591
12457997016,36cyclictest0-21swapper/119:56:591
12457997016,34cyclictest0-21swapper/123:33:581
12457997010,53cyclictest0-21swapper/122:32:591
228699690,5rtkit-daemon15329-21iostat22:50:180
228699690,4rtkit-daemon2285-21rtkit-daemon22:58:031
228699690,4rtkit-daemon2285-21rtkit-daemon22:32:420
228699690,4rtkit-daemon2285-21rtkit-daemon21:33:361
228699690,4rtkit-daemon2285-21rtkit-daemon21:02:260
12457996917,32cyclictest0-21swapper/121:50:591
12457996916,35cyclictest0-21swapper/119:26:591
12457996915,38cyclictest0-21swapper/119:18:591
12457996914,35cyclictest0-21swapper/120:18:591
228699680,3rtkit-daemon2285-21rtkit-daemon20:40:551
12457996815,40cyclictest0-21swapper/123:50:581
228699670,4rtkit-daemon2285-21rtkit-daemon22:21:220
228699670,4rtkit-daemon2285-21rtkit-daemon20:34:551
228699670,4rtkit-daemon2285-21rtkit-daemon19:38:151
228699670,3rtkit-daemon2285-21rtkit-daemon23:13:321
228699670,3rtkit-daemon2285-21rtkit-daemon19:31:041
12457996713,39cyclictest0-21swapper/121:03:581
12457996713,37cyclictest0-21swapper/100:00:581
1245699675,57cyclictest0-21swapper/022:00:000
228699650,4rtkit-daemon2285-21rtkit-daemon23:33:540
228699650,4rtkit-daemon2285-21rtkit-daemon22:47:481
228699650,4rtkit-daemon2285-21rtkit-daemon00:13:381
12457996518,34cyclictest0-21swapper/119:41:591
12457996517,34cyclictest0-21swapper/121:42:591
12457996516,31cyclictest0-21swapper/100:06:001
228699640,4rtkit-daemon2285-21rtkit-daemon21:49:520
228699640,4rtkit-daemon2285-21rtkit-daemon21:27:501
228699640,3rtkit-daemon2285-21rtkit-daemon22:05:321
228699640,3rtkit-daemon2285-21rtkit-daemon22:05:311
12457996417,34cyclictest0-21swapper/120:25:581
12457996415,35cyclictest0-21swapper/123:26:591
12457996415,31cyclictest0-21swapper/119:51:591
12457996414,35cyclictest0-21swapper/123:15:591
12457996414,31cyclictest0-21swapper/100:21:581
12457996413,35cyclictest0-21swapper/119:23:591
1245699648,47cyclictest0-21swapper/023:50:190
1245699645,52cyclictest0-21swapper/022:49:590
12456996432,25cyclictest0-21swapper/022:17:210
12456996418,41cyclictest0-21swapper/020:46:580
12456996412,44cyclictest0-21swapper/022:15:010
12457996314,35cyclictest0-21swapper/121:35:581
12457996314,35cyclictest0-21swapper/120:04:591
12456996310,48cyclictest0-21swapper/023:37:580
12457996218,30cyclictest0-21swapper/120:51:591
12457996216,31cyclictest0-21swapper/119:46:591
12457996216,30cyclictest0-21swapper/123:03:591
12457996216,29cyclictest0-21swapper/123:21:591
12456996212,43cyclictest0-21swapper/023:29:200
55242610,5sleep05527-21latency_hist20:20:010
228699610,3rtkit-daemon3-21ksoftirqd/020:02:050
228699610,3rtkit-daemon2285-21rtkit-daemon20:21:301
228699610,10rtkit-daemon0-21swapper/020:31:250
12457996118,28cyclictest0-21swapper/123:41:581
12457996114,33cyclictest0-21swapper/121:46:591
12456996124,29cyclictest0-21swapper/022:55:290
12456996110,43cyclictest0-21swapper/023:00:090
228699600,10rtkit-daemon0-21swapper/000:24:490
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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