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2026-03-16 - 14:41
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack7slot8.osadl.org (updated Mon Mar 16, 2026 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22138219422,59sleep022150-21/usr/sbin/munin07:05:350
227379917052,29cyclictest101ktimersoftd/011:40:270
28031211714,11sleep028034-21fw_conntrack07:30:230
16336211311,85sleep016362-21basename08:50:150
2648321124,11sleep026534-21latency_hist07:25:030
979921118,11sleep09821-21netstat08:25:330
4475211115,83sleep04477-21fw_forwarded_lo12:15:230
4588210914,82sleep04602-21/usr/sbin/munin10:10:250
874021085,89sleep08742-21fw_conntrack10:25:250
2226121076,12sleep01305-21snmpd11:20:140
3092121055,11sleep030922-21users07:40:510
3002521056,82sleep030071-21basename11:50:180
789321035,84sleep07943-21sed12:30:040
665921010,7sleep06656-21grep12:25:030
2922121005,11sleep029240-21irqstats09:40:300
214621006,80sleep02142-21diskstats10:00:370
4342995,11sleep0448-21cat09:55:270
93742985,83sleep09395-21latency_hist08:25:020
12922954,11sleep032426-21apt-get12:02:120
263472946,75sleep026370-21/usr/sbin/munin11:35:440
22737999254,24cyclictest101ktimersoftd/010:50:420
22737999145,30cyclictest3650irq/20-4900000008:32:130
22737999142,31cyclictest25220-21aten_r7power_cu09:25:120
22737999136,39cyclictest0-21swapper/009:14:500
21062915,74sleep02121-21grep12:05:310
318282906,70sleep031842-21irqstats07:45:300
2273799908,46cyclictest4725-21fw_conntrack08:05:240
286862895,70sleep028721-21if_eth011:45:320
2273799898,45cyclictest14008-21ntp_states08:40:430
22737998937,31cyclictest27743-21/usr/sbin/munin09:35:120
22737998933,40cyclictest10250irq/56-4a10000011:30:120
22737998727,41cyclictest0-21swapper/007:19:250
23932866,11sleep02391-21ntp_states07:55:400
22737998635,13cyclictest1276-21runrttasks08:10:460
2273799859,21cyclictest6752-21apt-get10:22:130
22737998523,16cyclictest27691-21latency_hist07:30:040
22737998419,30cyclictest787-21haveged10:10:050
22737998324,43cyclictest101ktimersoftd/007:52:110
22737998261,11cyclictest101ktimersoftd/012:35:280
22737998248,23cyclictest101ktimersoftd/010:35:190
22737998240,28cyclictest3650irq/20-4900000007:10:250
22737998238,30cyclictest101ktimersoftd/007:35:240
22737998235,37cyclictest12553-21runrttasks10:40:330
22737998220,16cyclictest23834-21latency_hist09:20:050
2273799818,17cyclictest17469-21fw_forwarded_lo11:00:280
22737998148,15cyclictest10150irq/55-4a10000011:05:170
22737998142,22cyclictest0-21swapper/009:54:580
2273799808,18cyclictest26444-21/usr/sbin/munin09:30:300
22737998061,11cyclictest101ktimersoftd/008:45:260
22737998051,12cyclictest10150irq/55-4a10000008:35:260
22737998046,16cyclictest3516-21if_err_eth008:00:290
22737998038,30cyclictest3650irq/20-4900000009:20:230
22737998036,28cyclictest18479-21seq08:57:030
22737997961,10cyclictest101ktimersoftd/008:15:390
22737997943,27cyclictest10250irq/56-4a10000011:15:250
22737997931,31cyclictest31855-21which11:55:490
22737997850,13cyclictest10150irq/55-4a10000009:05:190
22737997747,13cyclictest10150irq/55-4a10000010:59:230
22737997745,14cyclictest10150irq/55-4a10000009:00:130
22737997657,11cyclictest101ktimersoftd/010:15:300
22737997657,10cyclictest101ktimersoftd/011:25:420
22737997650,16cyclictest10362-21/usr/sbin/munin10:30:500
22737997555,11cyclictest101ktimersoftd/011:10:290
22737997546,13cyclictest10150irq/55-4a10000009:45:310
22737997531,29cyclictest1305-21snmpd10:45:130
22737997512,16cyclictest9121-21latency_hist12:35:040
22737997319,39cyclictest0-21swapper/012:10:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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