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2026-01-08 - 12:47
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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 Thu Jan 08, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
72912598574,17sleep10-21swapper/119:08:221
748799437384,15cyclictest7865-21df19:10:130
748899426392,18cyclictest7866-21runrttasks19:10:131
72522398375,16sleep00-21swapper/019:08:010
748799915,9cyclictest0-21swapper/019:22:000
7488997811,9cyclictest8250irq/14-pata_sch19:55:011
228699770,4rtkit-daemon2285-21rtkit-daemon21:38:440
748899765,18cyclictest0-21swapper/100:13:571
748899757,19cyclictest0-21swapper/122:54:351
7487997530,31cyclictest8250irq/14-pata_sch20:55:000
7487997530,31cyclictest8250irq/14-pata_sch20:55:000
748899746,17cyclictest0-21swapper/121:42:521
748899738,16cyclictest0-21swapper/123:20:111
748899736,18cyclictest0-21swapper/121:53:371
748899736,18cyclictest0-21swapper/100:35:401
748899735,15cyclictest0-21swapper/100:33:261
748799739,46cyclictest0-21swapper/000:30:050
748799734,64cyclictest0-21swapper/021:45:260
748799734,48cyclictest0-21swapper/022:48:280
7487997317,49cyclictest0-21swapper/023:50:170
171932730,5sleep10-21swapper/122:00:281
748899726,17cyclictest0-21swapper/121:58:101
748899725,17cyclictest0-21swapper/122:43:021
748899725,17cyclictest0-21swapper/122:16:101
748899725,17cyclictest0-21swapper/121:48:001
748899725,17cyclictest0-21swapper/100:03:441
748899725,16cyclictest0-21swapper/122:20:221
7488997218,47cyclictest0-21swapper/121:30:091
748799726,52cyclictest0-21swapper/022:35:230
748799722,6cyclictest29724-21latency_hist00:15:010
748899716,29cyclictest0-21swapper/123:05:581
748899716,18cyclictest0-21swapper/121:25:111
748899716,17cyclictest0-21swapper/123:35:181
748899716,16cyclictest0-21swapper/123:52:401
748899707,16cyclictest0-21swapper/119:38:211
748899706,17cyclictest0-21swapper/123:16:021
748899705,27cyclictest0-21swapper/123:29:001
748799705,59cyclictest0-21swapper/023:15:190
748799705,58cyclictest0-21swapper/022:05:150
748799702,6cyclictest24713-21gltestperf23:10:170
748899697,19cyclictest0-21swapper/100:20:101
748899697,15cyclictest0-21swapper/120:00:011
748899696,19cyclictest0-21swapper/123:55:421
748899696,17cyclictest0-21swapper/123:40:141
748899696,16cyclictest0-21swapper/121:20:281
748899695,17cyclictest0-21swapper/122:14:161
748899693,19cyclictest15883-21ssh22:55:131
748899693,19cyclictest15883-21ssh22:55:131
748799695,58cyclictest0-21swapper/021:55:020
748799693,8cyclictest1520-21munin-node00:20:260
748799692,5cyclictest21960-21ssh21:15:160
748899687,19cyclictest0-21swapper/100:25:211
748899687,18cyclictest0-21swapper/123:47:341
748899686,20cyclictest0-21swapper/121:02:101
748899686,16cyclictest0-21swapper/123:12:401
748899686,16cyclictest0-21swapper/122:49:061
748899686,15cyclictest0-21swapper/100:06:301
748899685,16cyclictest0-21swapper/122:37:261
748799688,34cyclictest15785-21idleruntime-cro22:00:010
748799685,57cyclictest0-21swapper/023:55:060
748799684,50cyclictest0-21swapper/000:40:010
748799684,48cyclictest0-21swapper/023:36:530
748899679,11cyclictest0-21swapper/120:15:111
748899678,18cyclictest0-21swapper/121:15:251
748899677,19cyclictest0-21swapper/122:30:191
748899677,19cyclictest0-21swapper/119:20:191
748899677,16cyclictest0-21swapper/120:05:011
748899676,16cyclictest0-21swapper/121:37:171
748899676,15cyclictest0-21swapper/100:17:041
748899673,17cyclictest1271-21ksmtuned23:00:511
748799675,56cyclictest0-21swapper/000:02:030
748799675,55cyclictest0-21swapper/022:24:010
748799674,57cyclictest0-21swapper/022:29:220
748799674,44cyclictest0-21swapper/021:32:110
7487996714,48cyclictest13258-21which23:45:220
7487996711,50cyclictest0-21swapper/022:33:540
748899667,17cyclictest0-21swapper/121:13:391
748899666,18cyclictest0-21swapper/120:51:461
748899666,18cyclictest0-21swapper/120:51:461
748899666,17cyclictest0-21swapper/120:58:321
748899666,17cyclictest0-21swapper/120:44:141
748899666,17cyclictest0-21swapper/120:36:201
748899666,16cyclictest0-21swapper/120:22:021
748899666,14cyclictest0-21swapper/119:30:121
748899664,10cyclictest31045-21iostat22:25:171
7488996617,43cyclictest0-21swapper/122:05:021
7488996611,16cyclictest0-21swapper/123:30:241
748799665,40cyclictest0-21swapper/023:05:180
748799662,8cyclictest5271-21ssh23:31:420
748799662,7cyclictest26590-21ssh22:17:270
748799662,7cyclictest25463-21ssh00:06:110
748799662,7cyclictest13554-21forks20:55:160
748799662,6cyclictest16762-21latency_hist21:05:010
748899657,17cyclictest0-21swapper/119:41:391
748899656,19cyclictest0-21swapper/120:15:011
748899656,17cyclictest0-21swapper/120:25:151
748899656,17cyclictest0-21swapper/119:25:151
748899655,18cyclictest0-21swapper/121:06:501
748899655,16cyclictest0-21swapper/119:46:551
748799655,54cyclictest0-21swapper/019:15:230
748799655,43cyclictest0-21swapper/000:11:090
748799654,42cyclictest0-21swapper/000:25:560
748799653,42cyclictest379-21ssh23:25:010
748799652,8cyclictest27480-21munin-node20:05:110
748799652,6cyclictest24206-21expr19:55:170
748799652,6cyclictest21799-21munin-node22:10:190
748799652,57cyclictest25269-21munin-node21:20:210
748899646,17cyclictest0-21swapper/120:45:251
748899646,17cyclictest0-21swapper/120:30:281
748899645,16cyclictest0-21swapper/119:19:121
748799645,33cyclictest0-21swapper/023:04:160
748799643,54cyclictest20247-21munin-node19:45:190
748799642,7cyclictest2754-21ssh23:27:540
748799642,6cyclictest6877-21chrt22:40:020
748799642,6cyclictest10600-21ssh23:40:270
76622630,4sleep07663-21munin-plugin-st20:40:000
748899636,17cyclictest0-21swapper/120:09:051
748799633,6cyclictest17638-21ssh22:57:510
748799633,6cyclictest17638-21ssh22:57:510
748799632,7cyclictest14551-21ssh22:52:140
748799632,6cyclictest21169-21sh21:14:390
748799632,54cyclictest28211-21sed21:25:190
748799632,5cyclictest4728-21grep21:40:150
748799625,51cyclictest0-21swapper/020:50:010
748799624,43cyclictest0-21swapper/022:00:320
748799622,8cyclictest18299-21munin-run19:40:010
748799622,54cyclictest2399-21munin-node20:25:130
748799612,6cyclictest1326-21nscd21:10:000
748799605,50cyclictest0-21swapper/019:25:170
748799595,47cyclictest0-21swapper/020:15:190
748799592,7cyclictest5987-21latency_hist20:35:010
748799592,6cyclictest23806-21latency_hist19:55:010
748799582,6cyclictest25680-21cut20:00:130
7487995812,39cyclictest0-21swapper/019:40:190
748799572,6cyclictest15452-21grep19:30:190
748799572,5cyclictest7810-21munin-node20:40:200
7487995712,39cyclictest29693-21gltestperf20:10:150
7487995613,37cyclictest1129-21memory20:20:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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