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2026-06-17 - 18:53
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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 Wed Jun 17, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65762572551,15sleep10-21swapper/107:06:071
7000995134,496cyclictest0-21swapper/007:13:210
69412429406,16sleep00-21swapper/007:09:450
700099393333,52cyclictest0-21swapper/007:55:120
700199334305,16cyclictest23473-21cut07:55:111
7000998265,11cyclictest0-21swapper/012:13:510
700099783,34cyclictest14874-21iostat07:30:180
7001997664,7cyclictest244062sleep112:15:131
700099762,68cyclictest23557-21latency_hist09:20:020
700099762,68cyclictest23557-21latency_hist09:20:020
7000997517,52cyclictest88850irq/46-eth0-tx-12:19:450
228699750,3rtkit-daemon2285-21rtkit-daemon07:19:420
200512750,3sleep1271ktimersoftd/111:09:141
700099735,63cyclictest0-21swapper/012:27:540
700099733,46cyclictest18357-21ssh12:04:210
700099732,65cyclictest12074-21ssh11:51:570
700099724,62cyclictest0-21swapper/009:25:510
700099724,54cyclictest0-21swapper/011:02:220
700099724,42cyclictest12257-21ssh10:55:110
7001997155,11cyclictest0-21swapper/109:41:111
700099712,63cyclictest10823-21ssh10:51:140
700099712,62cyclictest10918-21latency_hist08:50:020
287592710,3sleep128758-21pgrep11:25:011
700099703,44cyclictest21577-21ssh10:13:310
7000997023,42cyclictest88850irq/46-eth0-tx-11:25:100
7000996948,16cyclictest0-21swapper/009:50:160
700099694,36cyclictest24945-21unixbench_singl09:20:280
700099693,42cyclictest3380-21ssh11:35:460
700099692,60cyclictest1160-21runrttasks09:35:340
700099692,50cyclictest21410-21latency_hist07:50:020
7000996848,15cyclictest0-21swapper/012:05:290
7000996846,17cyclictest0-21swapper/012:35:190
7000996846,17cyclictest0-21swapper/011:55:160
700099684,58cyclictest0-21swapper/008:57:500
7000996830,32cyclictest88850irq/46-eth0-tx-10:00:180
700099683,47cyclictest32403-21munin-node08:20:120
700099683,44cyclictest23774-21ssh11:15:170
700099683,43cyclictest2990-21ssh10:37:550
700099683,43cyclictest26778-21ssh10:22:190
700099683,42cyclictest28157-21ssh11:23:290
700099682,51cyclictest22668-21awk07:50:250
7000996818,44cyclictest88850irq/46-eth0-tx-09:56:290
700099675,53cyclictest0-21swapper/009:06:200
700099675,48cyclictest0-21swapper/010:07:270
700099673,42cyclictest6127-21ssh10:44:070
700099673,42cyclictest1658-21ssh12:31:000
700099673,40cyclictest6131-21ssh11:40:380
700099673,40cyclictest29820-21ssh10:28:140
700099673,40cyclictest19238-21ssh11:06:290
700099673,37cyclictest31491-21ssh09:33:050
7000996720,30cyclictest8158-21sh11:45:160
700099672,58cyclictest19765-21ssh09:12:090
700099672,41cyclictest22991-21ssh11:14:490
700099664,57cyclictest0-21swapper/011:34:530
700099663,58cyclictest10933-21munin-node08:50:250
700099663,57cyclictest31339-21ssh10:30:210
700099662,54cyclictest16207-21latency_hist09:05:020
700099662,40cyclictest7567-21ssh09:48:130
700099662,40cyclictest4913-21ssh09:43:380
7000996617,43cyclictest88850irq/46-eth0-tx-12:21:380
700199655,39cyclictest0-21swapper/110:56:591
700099654,45cyclictest6605-21ssh10:45:120
700099653,55cyclictest6048-21kernelversion08:35:170
700099653,41cyclictest24314-21ssh10:18:220
700099652,48cyclictest31765-21munin-node08:15:270
7001996435,24cyclictest31038-21uptime12:25:251
7000996434,25cyclictest0-21swapper/008:25:190
700099643,55cyclictest7936-21munin-node08:40:200
700099643,55cyclictest19606-21crond07:45:010
700099636,52cyclictest0-21swapper/008:15:010
7000996341,17cyclictest0-21swapper/007:39:560
700199624,43cyclictest0-21swapper/107:13:211
7001996127,26cyclictest1568-21runrttasks09:23:171
700099614,51cyclictest0-21swapper/008:02:490
700099613,38cyclictest13023-21munin-node07:25:170
228699610,5rtkit-daemon2285-21rtkit-daemon12:38:491
7001996040,15cyclictest29183-21ssh12:23:291
7001996038,17cyclictest685-21munin-run10:35:011
7001995938,16cyclictest23421-21munin-node10:15:251
7001995937,16cyclictest22081-21kernelversion12:10:171
7001995937,16cyclictest20057-21munin-node10:10:171
7001995933,21cyclictest9149-21basename08:45:141
700099592,52cyclictest11247-21if_eth007:20:170
700099592,50cyclictest26995-21munin-node08:05:220
228699590,4rtkit-daemon2285-21rtkit-daemon10:24:271
7001995843,9cyclictest13466-21munin-node11:55:131
7001995836,16cyclictest32072-21munin-run09:35:001
7001995836,16cyclictest28512-21runrttasks08:08:421
7001995836,16cyclictest20236-21munin-node07:45:161
7001995826,25cyclictest10609-21yum10:50:291
700099583,49cyclictest3719-21munin-node08:30:250
700099583,49cyclictest3719-21munin-node08:30:250
228699580,5rtkit-daemon2285-21rtkit-daemon12:09:341
228699580,5rtkit-daemon2285-21rtkit-daemon09:17:411
228699580,5rtkit-daemon2285-21rtkit-daemon09:17:401
228699580,4rtkit-daemon2285-21rtkit-daemon09:59:111
7001995735,16cyclictest2974-21ssh10:37:521
7001995726,25cyclictest21448-21ssh11:10:261
7001995726,24cyclictest1568-21runrttasks11:38:471
228699570,5rtkit-daemon2285-21rtkit-daemon10:47:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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