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2025-12-10 - 02:19
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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 rack3slot3.osadl.org (updated Wed Dec 10, 2025 00:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501220irq/42-ahci0-21swapper/319:08:235
23331210794sleep80-21swapper/819:06:5810
122501010irq/42-ahci0-21swapper/219:08:524
3066350960irq/52-eth0-rx-0-21swapper/419:06:096
2360229287sleep70-21swapper/719:09:589
12250900irq/42-ahci0-21swapper/119:05:101
3066350880irq/52-eth0-rx-0-21swapper/519:05:257
2044728274sleep100-21swapper/1019:05:112
23709996950cyclictest0-21swapper/022:10:270
2327526753sleep00-21swapper/019:06:140
2337326353sleep60-21swapper/619:07:338
2347826253sleep110-21swapper/1119:08:133
2328526253sleep90-21swapper/919:06:2311
2370999480cyclictest0-21swapper/022:09:570
2370999440cyclictest0-21swapper/022:16:280
23709992918cyclictest0-21swapper/000:30:000
23709992914cyclictest0-21swapper/020:11:440
2370999290cyclictest27484-21munin-node19:20:370
23709992816cyclictest0-21swapper/000:30:010
23758992714cyclictest0-21swapper/1120:11:493
23758992711cyclictest0-21swapper/1122:15:543
2375899260cyclictest0-21swapper/1122:10:323
23746992216cyclictest12249-21awk21:50:008
23757991817cyclictest12920-21kworker/10:221:15:022
2375799181cyclictest3066450irq/53-eth0-tx-21:16:192
2375799181cyclictest3066350irq/52-eth0-rx-22:45:002
2375799181cyclictest3066350irq/52-eth0-rx-21:35:552
2375799181cyclictest3066350irq/52-eth0-rx-20:05:202
2375799181cyclictest3066350irq/52-eth0-rx-19:40:202
2375799181cyclictest3066350irq/52-eth0-rx-19:14:212
2375799181cyclictest3066350irq/52-eth0-rx-00:09:172
2375799181cyclictest12250irq/42-ahci22:08:272
2375799181cyclictest12250irq/42-ahci22:04:442
2375099181cyclictest761ksoftirqd/923:10:3311
2375099181cyclictest761ksoftirqd/922:20:3211
2375099181cyclictest761ksoftirqd/921:45:1611
2375099181cyclictest761ksoftirqd/921:25:3311
2375099181cyclictest761ksoftirqd/920:15:0011
2375099181cyclictest761ksoftirqd/919:20:1211
2375099181cyclictest3523-21munin-node20:50:3011
2375099181cyclictest30298-21munin-node23:40:2611
2375099181cyclictest30298-21munin-node23:40:2511
2375099181cyclictest0-21swapper/923:53:5411
2375099181cyclictest0-21swapper/923:29:0411
2375099181cyclictest0-21swapper/923:29:0311
2375099181cyclictest0-21swapper/923:18:1411
2375099181cyclictest0-21swapper/923:18:1411
2375099181cyclictest0-21swapper/923:05:2311
2375099181cyclictest0-21swapper/923:01:0111
2375099181cyclictest0-21swapper/922:00:1711
2375099181cyclictest0-21swapper/921:10:3611
2375099181cyclictest0-21swapper/921:05:1611
2375099181cyclictest0-21swapper/920:24:1111
2375099181cyclictest0-21swapper/920:00:1711
2375099181cyclictest0-21swapper/919:39:1111
2375099181cyclictest0-21swapper/900:28:2511
2375099181cyclictest0-21swapper/900:05:1611
23746991816cyclictest15322-21qemu-kvm21:11:018
23743991816cyclictest26756-21qemu-kvm22:08:397
2370999180cyclictest0-21swapper/022:20:020
23757991716cyclictest25575-1kworker/10:2H00:01:492
2375799170cyclictest93422chrt23:12:152
2375799170cyclictest84222sleep1021:42:402
2375799170cyclictest831ksoftirqd/1021:25:242
2375799170cyclictest81882sleep1020:15:072
2375799170cyclictest74012sleep1020:11:182
2375799170cyclictest67922sleep1023:55:082
2375799170cyclictest59952sleep1023:51:182
2375799170cyclictest51232sleep1022:20:332
2375799170cyclictest48922chrt23:05:262
2375799170cyclictest43082chrt20:52:592
2375799170cyclictest32172sleep1019:20:362
2375799170cyclictest3066450irq/53-eth0-tx-21:30:202
2375799170cyclictest3066350irq/52-eth0-rx-23:30:152
2375799170cyclictest3066350irq/52-eth0-rx-23:30:152
2375799170cyclictest3066350irq/52-eth0-rx-23:15:142
2375799170cyclictest3066350irq/52-eth0-rx-23:15:142
2375799170cyclictest3066350irq/52-eth0-rx-21:50:242
2375799170cyclictest3066350irq/52-eth0-rx-21:05:122
2375799170cyclictest3066350irq/52-eth0-rx-20:45:282
2375799170cyclictest3066350irq/52-eth0-rx-20:20:322
2375799170cyclictest3066350irq/52-eth0-rx-19:51:192
2375799170cyclictest3066350irq/52-eth0-rx-19:35:332
2375799170cyclictest3066350irq/52-eth0-rx-19:30:172
2375799170cyclictest306362sleep1022:55:492
2375799170cyclictest296312sleep1023:40:192
2375799170cyclictest296312sleep1023:40:182
2375799170cyclictest295432sleep1020:00:052
2375799170cyclictest286962sleep1019:55:402
2375799170cyclictest280252sleep1020:40:222
2375799170cyclictest279432sleep1019:15:122
2375799170cyclictest274162chrt22:10:072
2375799170cyclictest270352chrt22:51:122
2375799170cyclictest266202sleep1000:20:232
2375799170cyclictest232612sleep1021:20:022
2375799170cyclictest219742sleep1020:31:202
2375799170cyclictest213642sleep1000:15:102
2375799170cyclictest193382sleep1000:10:212
2375799170cyclictest182872sleep1020:25:452
2375799170cyclictest166982sleep1023:23:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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