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2026-03-14 - 05:09
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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 Sat Mar 14, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
178782723699,17sleep00-21swapper/019:06:400
179492575554,14sleep10-21swapper/119:07:221
1824899384327,9cyclictest20194-21munin-node19:15:110
234172880,3sleep041ktimersoftd/023:53:030
228699820,13rtkit-daemon0-21swapper/019:28:530
228699820,13rtkit-daemon0-21swapper/019:28:520
18248998265,12cyclictest0-21swapper/019:46:010
18249998012,57cyclictest0-21swapper/122:00:591
228699780,3rtkit-daemon2285-21rtkit-daemon23:45:471
1824899783,69cyclictest23060-21ssh22:54:570
18248997765,8cyclictest0-21swapper/022:45:580
18249997613,47cyclictest0-21swapper/121:09:001
1824899755,62cyclictest0-21swapper/023:04:400
18248997525,43cyclictest88850irq/46-eth0-tx-20:45:150
1824899744,63cyclictest29252-21diskmemload23:35:280
1824899742,66cyclictest5844-21ksmtuned23:20:240
18248997419,48cyclictest0-21swapper/021:59:200
18249997317,38cyclictest0-21swapper/119:54:001
1824899732,7cyclictest4308-21gltestperf22:20:150
18249997218,35cyclictest0-21swapper/100:13:591
1824899717,53cyclictest0-21swapper/019:30:170
1824899713,7cyclictest15618-21ssh00:36:390
1824899713,62cyclictest32076-21ssh22:11:120
1824899713,62cyclictest11853-21latency00:30:170
1824899713,60cyclictest1701-21ssh22:15:210
1824899713,6cyclictest9262-21latency_hist22:30:020
1824899712,6cyclictest11206-21latency_hist20:20:020
228699700,11rtkit-daemon0-21swapper/121:24:431
18249997014,35cyclictest0-21swapper/120:18:001
18249997013,37cyclictest0-21swapper/121:37:581
18249997010,45cyclictest0-21swapper/123:53:591
1824899705,43cyclictest2270-21gdm-simple-gree23:46:580
1824899702,58cyclictest9401-21munin-node22:30:190
1824899702,58cyclictest9401-21munin-node22:30:180
18248997018,35cyclictest0-21swapper/023:18:510
18248997013,52cyclictest0-21swapper/023:05:580
18249996916,35cyclictest0-21swapper/100:37:591
18249996915,37cyclictest0-21swapper/121:31:001
1824899696,57cyclictest0-21swapper/021:17:080
1824899696,56cyclictest0-21swapper/021:35:230
1824899696,46cyclictest14763-21awk22:40:000
1824899693,7cyclictest1800-21ssh00:11:420
1824899693,44cyclictest2325-21munin-node19:55:210
1824899685,55cyclictest0-21swapper/000:00:260
1824899684,57cyclictest0-21swapper/023:28:370
1824899683,58cyclictest5832-21ssh21:25:150
1824899683,58cyclictest19536-21munin-node21:50:160
1824899683,57cyclictest18579-21munin-node20:40:180
1824899683,56cyclictest29428-21munin-node21:10:110
1824899683,55cyclictest26835-21grep21:00:240
1824899683,55cyclictest13996-21munin-node21:40:200
1824899683,37cyclictest10777-21ssh00:28:560
18248996820,43cyclictest0-21swapper/023:44:590
18248996820,42cyclictest88850irq/46-eth0-tx-23:32:350
1824899682,59cyclictest3086-21grep21:20:140
1824899676,54cyclictest0-21swapper/021:00:020
1824899676,47cyclictest0-21swapper/022:56:050
1824899675,50cyclictest0-21swapper/022:02:070
1824899675,43cyclictest0-21swapper/020:01:460
1824899675,37cyclictest24949-21ssh23:55:210
1824899673,57cyclictest32275-21grep23:10:190
1824899672,7cyclictest88850irq/46-eth0-tx-20:34:470
1824899672,7cyclictest2980-21munin-node00:15:080
1824899672,6cyclictest23670-21runrttasks20:53:280
1824899672,6cyclictest14939-21munin-node22:40:210
18249996619,35cyclictest0-21swapper/119:41:591
18249996616,35cyclictest0-21swapper/121:58:591
18249996615,34cyclictest0-21swapper/120:33:001
18249996614,36cyclictest0-21swapper/123:38:001
18249996614,34cyclictest0-21swapper/119:28:001
18249996614,34cyclictest0-21swapper/119:27:591
1824899666,53cyclictest0-21swapper/020:25:140
18248996637,24cyclictest0-21swapper/019:40:160
1824899663,56cyclictest27841-21munin-node21:05:120
1824899663,36cyclictest16867-21ssh21:45:130
1824899662,7cyclictest31704-21ssh00:07:530
1824899662,6cyclictest13008-21latency_hist20:25:010
1824899662,6cyclictest10625-21ssh21:33:370
18248996612,47cyclictest88850irq/46-eth0-tx-00:21:320
18249996518,30cyclictest0-21swapper/100:24:591
18249996516,32cyclictest0-21swapper/121:49:591
18249996515,32cyclictest0-21swapper/100:01:591
18249996514,34cyclictest0-21swapper/122:43:591
18249996513,34cyclictest0-21swapper/120:00:591
1824899653,55cyclictest566-21runrttasks19:50:140
1824899653,55cyclictest16764-21munin-node20:35:110
1824899653,53cyclictest7600-21crond20:10:020
1824899653,52cyclictest29058-21idleruntime-cro19:40:020
18249996416,34cyclictest0-21swapper/121:20:001
18249996415,33cyclictest0-21swapper/123:58:001
1824899643,39cyclictest27840-21munin-node22:05:220
18249996312,36cyclictest0-21swapper/120:21:001
18249996312,34cyclictest0-21swapper/119:57:001
1824899632,53cyclictest20041-21latency_hist19:15:000
18249996219,27cyclictest0-21swapper/122:52:591
18249996216,32cyclictest0-21swapper/100:31:591
18249996216,30cyclictest0-21swapper/119:33:591
18249996214,34cyclictest0-21swapper/122:13:591
18249996214,30cyclictest0-21swapper/119:23:011
18249996214,30cyclictest0-21swapper/119:23:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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