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2026-08-03 - 06:02
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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 rack1slot8.osadl.org (updated Mon Aug 03, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2037799904834,44cyclictest0-21swapper/020:27:440
2037899816745,41cyclictest0-21swapper/120:27:431
2037899490419,50cyclictest0-21swapper/119:10:161
202402457434,16sleep00-21swapper/019:08:590
2037799394325,53cyclictest41ktimersoftd/019:10:160
203779911018,87cyclictest0-21swapper/023:23:590
203779910718,84cyclictest0-21swapper/022:05:590
228699900,5rtkit-daemon2285-21rtkit-daemon23:31:270
20377999014,69cyclictest0-21swapper/000:15:590
228699860,5rtkit-daemon2285-21rtkit-daemon22:40:011
20378998521,46cyclictest0-21swapper/123:32:591
228699810,4rtkit-daemon2285-21rtkit-daemon23:21:331
228699810,4rtkit-daemon2285-21rtkit-daemon21:23:501
228699810,4rtkit-daemon2285-21rtkit-daemon19:37:531
228699790,4rtkit-daemon2285-21rtkit-daemon23:13:231
228699780,4rtkit-daemon2285-21rtkit-daemon22:57:230
228699780,4rtkit-daemon2285-21rtkit-daemon20:45:191
20377997819,45cyclictest0-21swapper/000:00:000
228699770,5rtkit-daemon2285-21rtkit-daemon19:58:231
228699770,4rtkit-daemon2285-21rtkit-daemon23:16:221
228699770,4rtkit-daemon2285-21rtkit-daemon21:46:301
228699770,4rtkit-daemon2285-21rtkit-daemon19:40:231
20378997719,37cyclictest0-21swapper/120:44:001
20378997718,36cyclictest0-21swapper/119:25:591
2037799773,55cyclictest5320-21munin-node21:20:190
228699760,4rtkit-daemon2285-21rtkit-daemon22:35:220
228699760,4rtkit-daemon2285-21rtkit-daemon21:37:260
228699760,3rtkit-daemon2285-21rtkit-daemon23:45:040
228699750,4rtkit-daemon2285-21rtkit-daemon21:02:540
228699750,4rtkit-daemon2285-21rtkit-daemon19:36:390
2037799755,54cyclictest0-21swapper/000:20:310
2037799754,57cyclictest0-21swapper/020:35:410
228699740,5rtkit-daemon19543-21munin-node23:45:231
228699740,4rtkit-daemon2285-21rtkit-daemon21:00:191
20378997420,34cyclictest0-21swapper/122:57:581
20378997419,36cyclictest0-21swapper/100:02:591
2037799746,61cyclictest0-21swapper/019:27:000
228699730,4rtkit-daemon2285-21rtkit-daemon21:10:541
20378997314,39cyclictest0-21swapper/122:13:581
2037799739,34cyclictest6143-21timerandwakeup22:20:250
2037799736,60cyclictest0-21swapper/023:25:590
2037799733,8cyclictest28032-21grep00:00:260
2037799732,8cyclictest16709-21ls23:40:190
20377997314,43cyclictest0-21swapper/020:56:010
20377997232,32cyclictest0-21swapper/021:20:010
2037799723,6cyclictest27367-21munin-node22:00:230
20377997221,45cyclictest88850irq/46-eth0-tx-00:25:270
2037799722,7cyclictest6259-21munin-node20:00:190
2037799722,64cyclictest24097-21latency_hist23:55:010
2037799722,63cyclictest22648-21chrt21:51:210
228699710,4rtkit-daemon2285-21rtkit-daemon23:35:321
228699710,4rtkit-daemon14606-21timerwakeupswit00:35:291
20378997117,35cyclictest0-21swapper/122:23:581
2037799713,62cyclictest12323-21ssh22:32:260
2037799712,7cyclictest673-21unixbench_multi22:10:250
2037799712,7cyclictest31465-21ssh00:07:460
2037799712,7cyclictest15877-21basename23:40:010
2037799712,62cyclictest9925-21ssh21:29:160
228699700,4rtkit-daemon2285-21rtkit-daemon20:51:290
228699700,30rtkit-daemon2285-21rtkit-daemon19:07:281
20378997016,33cyclictest0-21swapper/119:52:591
2037799705,59cyclictest0-21swapper/023:10:280
2037799705,59cyclictest0-21swapper/000:38:450
2037799705,54cyclictest0-21swapper/000:31:000
2037799702,7cyclictest10800-21sort21:30:180
20377997016,44cyclictest0-21swapper/022:49:000
228699690,4rtkit-daemon2285-21rtkit-daemon22:05:461
228699690,4rtkit-daemon2285-21rtkit-daemon19:17:031
228699690,3rtkit-daemon2285-21rtkit-daemon23:06:221
228699690,3rtkit-daemon2285-21rtkit-daemon20:55:591
228699690,3rtkit-daemon2285-21rtkit-daemon00:18:431
20378996915,38cyclictest0-21swapper/121:35:591
20378996914,38cyclictest0-21swapper/119:22:591
2037799698,54cyclictest26376-21ssh22:00:020
2037799695,57cyclictest0-21swapper/000:10:210
2037799695,49cyclictest0-21swapper/019:25:000
2037799694,57cyclictest3582-21ssh23:15:280
2037799693,7cyclictest16682-21find21:40:230
2037799693,37cyclictest16028-21ssh22:40:120
2037799692,7cyclictest30825-21sh23:05:590
20377996914,38cyclictest0-21swapper/020:22:000
228699680,4rtkit-daemon2285-21rtkit-daemon21:31:001
20378996815,35cyclictest0-21swapper/121:43:591
2037799684,58cyclictest22459-21munin-node22:50:260
2037799683,6cyclictest23741-21ksmtuned20:46:040
2037799682,6cyclictest2511-21ssh22:15:130
2037799682,6cyclictest18208-21unixbench_singl20:30:270
20377996812,50cyclictest88850irq/46-eth0-tx-21:12:050
228699670,4rtkit-daemon2285-21rtkit-daemon20:17:201
228699670,3rtkit-daemon2285-21rtkit-daemon00:11:291
20378996720,31cyclictest0-21swapper/120:21:001
20378996718,31cyclictest0-21swapper/123:25:581
20378996716,34cyclictest0-21swapper/122:15:581
2037799673,7cyclictest20700-21munin-node20:40:230
2037799673,10cyclictest18475-21munin-node21:45:200
2037799672,7cyclictest5585-21grep19:55:290
2037799672,40cyclictest27380-21sh23:00:200
20377996715,38cyclictest0-21swapper/020:07:000
228699660,4rtkit-daemon2285-21rtkit-daemon19:44:530
20378996619,33cyclictest0-21swapper/120:01:001
2037799664,6cyclictest10704-21processes20:10:230
2037799662,8cyclictest8284-21sort22:25:180
2037799662,8cyclictest4282-21ksmtuned19:54:550
228699650,4rtkit-daemon2285-21rtkit-daemon21:50:101
228699650,3rtkit-daemon2285-21rtkit-daemon20:50:091
20378996518,34cyclictest0-21swapper/123:54:591
20378996517,32cyclictest0-21swapper/119:48:591
20378996517,27cyclictest0-21swapper/121:06:001
20378996515,34cyclictest0-21swapper/120:39:591
2037799653,8cyclictest30765-21unixbench-2d21:05:270
2037799653,6cyclictest23967-21crond19:20:010
2037799642,7cyclictest2610-21latency_hist19:50:020
20378996319,33cyclictest0-21swapper/119:33:001
20378996319,31cyclictest0-21swapper/120:33:591
20378996316,34cyclictest0-21swapper/121:56:591
2037799632,6cyclictest12003-21taskset20:15:160
20378996214,33cyclictest0-21swapper/121:16:591
20378996212,30cyclictest0-21swapper/123:56:591
20378996211,34cyclictest0-21swapper/100:32:591
20378996118,30cyclictest0-21swapper/122:36:581
20378996118,29cyclictest0-21swapper/122:32:591
20378996117,28cyclictest0-21swapper/100:28:591
2037899609,32cyclictest0-21swapper/122:25:581
20378996015,30cyclictest0-21swapper/100:22:591
2037799603,19cyclictest27756-21head19:30:130
20378995917,30cyclictest0-21swapper/122:50:581
20378995916,32cyclictest0-21swapper/122:02:581
20378995815,27cyclictest0-21swapper/120:13:591
20378995814,32cyclictest0-21swapper/123:43:591
20378995812,30cyclictest0-21swapper/120:09:011
228699560,11rtkit-daemon0-21swapper/021:27:301
20378995616,27cyclictest0-21swapper/100:07:581
2037899515,34cyclictest0-21swapper/122:45:591
2037899506,36cyclictest0-21swapper/123:00:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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