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2025-12-25 - 13:10
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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 50 highest latencies:
System rack7slot8.osadl.org (updated Thu Dec 25, 2025 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4912211820,11sleep04911-21/usr/sbin/munin19:05:360
55269911021,50cyclictest1408-21nginx19:42:030
55269910822,35cyclictest14478-21apt-get00:02:160
55269910348,34cyclictest13432-21runrttasks19:37:300
55269910319,31cyclictest1305-21snmpd22:02:120
55269910237,48cyclictest1305-21snmpd22:30:190
5526999939,45cyclictest1305-21snmpd20:59:510
5526999914,34cyclictest7035-21df19:15:170
56982980,7chrt5695-21cut19:10:150
5526999851,31cyclictest3650irq/20-4900000019:20:320
5526999636,40cyclictest754-21systemd-journal21:25:010
5526999632,33cyclictest26971-21seq22:40:030
5526999532,33cyclictest23405-21wget22:25:150
5526999524,51cyclictest27441-21apt-get20:35:420
5526999220,52cyclictest14478-21apt-get00:00:030
5526999166,11cyclictest101ktimersoftd/023:20:270
5526999154,18cyclictest21767-21runrttasks22:18:210
5526999147,30cyclictest3650irq/20-4900000019:27:070
5526999120,35cyclictest23335-21apt-get20:17:060
5526999120,20cyclictest15682-21diskstats21:55:240
5526999117,52cyclictest1305-21snmpd23:50:160
5526999052,28cyclictest7318-21seq23:30:200
5526999032,47cyclictest10250irq/56-4a10000000:21:460
5526999030,44cyclictest8036-21wget21:25:120
5526999024,34cyclictest1305-21snmpd21:34:590
5526998947,31cyclictest3407-21runrttasks21:05:390
5526998930,41cyclictest9498-21munin-run23:40:030
5526998915,36cyclictest19892-21irqstats22:10:320
5526998853,27cyclictest12224-21sshd19:32:460
5526998851,24cyclictest101ktimersoftd/020:45:250
5526998845,28cyclictest101ktimersoftd/023:11:280
5526998833,14cyclictest26324-21aten_r7power_cu20:30:130
5526998829,42cyclictest27156-21/usr/sbin/munin22:40:150
5526998762,11cyclictest3943-21mailstats23:15:460
5526998762,11cyclictest101ktimersoftd/023:01:260
5526998757,21cyclictest23005-21runrttasks22:23:130
5526998742,30cyclictest3650irq/20-4900000021:45:030
5526998741,14cyclictest10250irq/56-4a10000000:13:170
5526998727,48cyclictest10250irq/56-4a10000022:56:250
5526998725,22cyclictest18547-21df_inode22:05:190
5526998724,33cyclictest10250irq/56-4a10000021:50:140
5526998715,53cyclictest20116-21wget20:05:130
5526998661,12cyclictest19091-21cat20:00:280
5526998645,30cyclictest4310-21wget21:10:120
5526998640,34cyclictest21557-21fw_conntrack20:10:250
5526998627,31cyclictest5893-21ntp_states21:15:410
5526998618,36cyclictest24961-21latency_hist20:25:030
5526998556,13cyclictest10150irq/55-4a10000021:38:550
5526998540,30cyclictest3650irq/20-4900000022:50:240
5526998537,34cyclictest15810-21seq19:46:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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