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2026-06-25 - 16:05
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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 792 highest latencies:
System rack1slot8.osadl.org (updated Thu Jun 25, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
320879919021811,44cyclictest27213-21sed12:25:150
318502925903,16sleep10-21swapper/107:07:591
3208899871789,49cyclictest0-21swapper/107:11:491
3208799865784,54cyclictest0-21swapper/007:11:490
3208799795717,39cyclictest12656-21ssh09:12:210
3208799795717,39cyclictest12656-21ssh09:12:210
3208899769725,29cyclictest0-21swapper/109:12:211
3208899769725,29cyclictest0-21swapper/109:12:201
3208899414377,22cyclictest27174-21ssh12:25:151
316552370348,15sleep00-21swapper/007:06:020
219562820,4sleep122055-21sed11:20:151
32087997312,54cyclictest0-21swapper/012:35:190
3208799726,60cyclictest22972-21df09:30:150
3208799724,61cyclictest9934-21latency_hist11:00:010
32087997227,30cyclictest88850irq/46-eth0-tx-12:05:130
32087997145,21cyclictest0-21swapper/007:46:120
3208799713,48cyclictest1201-21ssh09:47:540
3208799712,63cyclictest10126-21munin-node11:00:190
3208799703,60cyclictest30924-21runrttasks12:30:310
3208799703,60cyclictest30924-21runrttasks12:30:310
3208799703,50cyclictest4038-21df_inode11:45:120
32087997021,43cyclictest88850irq/46-eth0-tx-11:05:190
3208799702,61cyclictest16169-21munin-node07:55:220
3208799693,60cyclictest3204-21ssh11:43:580
32087996920,34cyclictest88850irq/46-eth0-tx-09:58:500
3208799692,52cyclictest16004-21latency_hist07:55:010
3208799692,43cyclictest27817-21ssh11:30:170
3208799692,41cyclictest7067-21ssh10:55:010
3208799685,47cyclictest0-21swapper/011:55:180
32087996822,40cyclictest88850irq/46-eth0-tx-12:02:240
3208799682,61cyclictest11232-21ssh10:05:150
3208799682,60cyclictest22111-21latency_hist10:25:010
32087996817,45cyclictest88850irq/46-eth0-tx-09:44:350
3208899673,57cyclictest12983-21munin-node07:45:151
32088996717,40cyclictest31388-21runrttasks10:40:161
32087996746,16cyclictest0-21swapper/008:15:250
32087996745,17cyclictest0-21swapper/008:45:170
3208799674,41cyclictest26817-21ssh10:31:420
3208799673,58cyclictest1456-21munin-node10:45:170
3208799673,58cyclictest1456-21munin-node10:45:160
3208799673,57cyclictest28805-21munin-node08:30:110
3208799672,49cyclictest31081-21if_err_eth008:35:160
32087996717,44cyclictest19451-21kworker/0:010:22:240
32087996714,47cyclictest88850irq/46-eth0-tx-10:02:150
3208899662,58cyclictest21829-21munin-node08:10:141
3208799666,38cyclictest0-21swapper/010:35:180
32087996647,14cyclictest0-21swapper/007:35:200
3208799663,57cyclictest22174-21iostat11:20:170
3208799662,59cyclictest19312-21ssh11:15:170
3208799662,58cyclictest25066-21kernelversion11:25:180
3208799662,58cyclictest10807-21diskmemload12:24:140
3208799662,49cyclictest10802-21latency_hist09:10:020
3208799662,42cyclictest15017-21ssh10:10:500
32087996617,43cyclictest88850irq/46-eth0-tx-10:15:090
32087996616,44cyclictest88850irq/46-eth0-tx-11:38:300
3208799653,40cyclictest540-21ssh10:43:060
3208799653,40cyclictest15649-21ssh09:17:300
32087996529,30cyclictest88850irq/46-eth0-tx-09:35:150
3208799652,40cyclictest88850irq/46-eth0-tx-09:51:130
3208899644,53cyclictest0-21swapper/111:45:461
3208899643,54cyclictest585-21munin-node08:40:201
3208899643,54cyclictest16819-21munin-node07:55:201
32087996443,16cyclictest0-21swapper/011:50:250
3208799642,55cyclictest22457-21ssh12:16:020
3208899635,52cyclictest0-21swapper/109:44:151
3208899633,54cyclictest11797-21munin-node07:40:261
3208899633,53cyclictest5269-21munin-node09:55:151
3208899633,53cyclictest23360-21munin-node09:30:201
3208899632,55cyclictest8785-21runrttasks11:53:281
3208799633,54cyclictest22372-21munin-node08:10:230
3208799632,40cyclictest21452-21ssh09:26:540
3208799632,36cyclictest19494-21crond09:25:000
32087996315,43cyclictest20883-21latency_hist12:15:010
3208899624,53cyclictest30477-21munin-node11:35:131
3208899623,51cyclictest3271-21unixbench_multi09:50:261
3208899622,54cyclictest893-21cpu11:40:131
3208899622,54cyclictest21013-21ssh10:21:331
3208899622,54cyclictest13629-21sh10:10:061
3208899622,53cyclictest28727-21latency_hist08:30:011
32088996217,39cyclictest0-21swapper/109:36:051
3208799625,52cyclictest0-21swapper/011:11:040
3208799623,53cyclictest2181-21chrt07:15:160
3208799622,54cyclictest18818-21processes08:00:240
3208799622,53cyclictest25199-21munin-node08:20:170
3208899616,49cyclictest0-21swapper/109:20:461
3208899615,49cyclictest5571-21munin-node08:55:111
3208899615,46cyclictest4623-21df10:50:131
3208899614,49cyclictest2148-21munin-node10:45:201
3208899614,49cyclictest2148-21munin-node10:45:201
3208899613,52cyclictest6983-21crond07:30:001
3208899613,52cyclictest2648-21munin-node07:15:221
3208899613,52cyclictest20020-21sh12:12:281
3208899613,51cyclictest9877-21awk09:05:201
3208899613,51cyclictest3106-21munin-node08:45:251
3208899613,51cyclictest19617-21processes11:15:221
3208899613,49cyclictest29176-21unixbench_multi10:35:251
3208899613,49cyclictest11235-21ls10:05:151
3208899612,53cyclictest88750irq/45-eth0-rx-09:47:311
32088996115,39cyclictest31742-21grep08:35:251
3208799615,50cyclictest0-21swapper/008:55:250
3208799614,38cyclictest32419-21munin-node08:40:170
3208799612,38cyclictest5229-21latency_hist07:25:010
3208899605,49cyclictest0-21swapper/111:06:401
3208899605,44cyclictest24457-21irqstats12:20:181
3208899604,49cyclictest7465-21munin-node07:30:151
3208899604,49cyclictest13293-21munin-node12:00:241
3208899603,50cyclictest7507-21munin-node10:55:161
3208899603,50cyclictest14651-21munin-node09:15:241
3208899603,48cyclictest10665-21iostat11:00:181
3208899603,47cyclictest16133-21munin-node11:10:131
3208899602,52cyclictest21165-21ssh09:26:051
3208899597,46cyclictest0-21swapper/111:30:201
3208899595,47cyclictest10259-21munin-node11:55:231
3208899594,49cyclictest27026-21taskset11:29:311
3208899594,47cyclictest9191-21munin-node07:35:121
3208899593,50cyclictest24459-21munin-node08:15:261
3208899593,50cyclictest16637-21sh12:05:521
3208899593,49cyclictest4024-21munin-node08:50:151
3208899593,47cyclictest28868-21munin-node08:30:111
3208899592,51cyclictest88750irq/45-eth0-rx-10:27:291
3208899592,51cyclictest8132-21cpuspeed10:00:141
3208899592,50cyclictest21365-21munin-node12:15:161
3208799593,36cyclictest4628-21munin-node08:50:240
3208799592,51cyclictest26995-21pgrep08:25:090
3208799592,51cyclictest20341-21munin-node08:05:180
3208899586,48cyclictest0-21swapper/108:24:231
3208899585,47cyclictest0-21swapper/108:05:141
3208899584,49cyclictest31822-21sh12:33:221
3208899584,49cyclictest31822-21sh12:33:221
3208899583,50cyclictest333-21chrt12:35:141
3208899583,49cyclictest25857-21munin-node10:30:211
3208899583,48cyclictest18903-21munin-node08:00:261
3208899582,49cyclictest15123-21munin-node07:50:221
3208899573,47cyclictest3790-21munin-node07:20:141
3208799575,47cyclictest0-21swapper/007:40:260
3208799575,45cyclictest0-21swapper/007:25:110
3208799572,35cyclictest7366-21cut09:00:110
3208799572,34cyclictest7130-21ksmtuned07:30:020
3208899564,46cyclictest16597-21munin-node10:15:121
3208899562,48cyclictest7647-21awk09:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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