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2026-05-20 - 07:06
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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 May 20, 2026 00:46:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9918501280irq/53-eth0-rx-0-21swapper/119:08:541
9918501130irq/53-eth0-rx-0-21swapper/419:07:226
25684210894sleep100-21swapper/1019:06:442
25659210893sleep20-21swapper/219:06:254
22803210891sleep60-21swapper/619:05:058
12850990irq/42-ahci0-21swapper/319:09:155
2576829585sleep50-21swapper/519:07:517
2573329282sleep90-21swapper/919:07:1911
991850910irq/53-eth0-rx-0-21swapper/819:06:5210
991850900irq/53-eth0-rx-0-21swapper/719:06:449
991850870irq/53-eth0-rx-0-21swapper/1119:07:383
2559426055sleep00-21swapper/019:05:350
26086994514cyclictest0-21swapper/022:09:110
2608699340cyclictest0-21swapper/020:12:430
2612899330cyclictest0-21swapper/1121:15:543
2608699330cyclictest0-21swapper/021:17:310
26086992928cyclictest0-21swapper/019:14:260
991950270irq/54-eth0-tx-0-21swapper/021:25:220
26126992414cyclictest14995-21cpuspeed23:45:1211
2612899239cyclictest106942sleep1122:20:433
26126992316cyclictest0-21swapper/923:36:4511
26126992315cyclictest30640-21chrt22:38:2011
26126992314cyclictest0-21swapper/900:06:1211
26126992215cyclictest0-21swapper/922:13:0911
26126992215cyclictest0-21swapper/921:22:0111
2612699221cyclictest0-21swapper/922:15:5811
2612699221cyclictest0-21swapper/919:15:1311
2612699221cyclictest0-21swapper/919:10:1711
2612699220cyclictest0-21swapper/921:15:0711
26126992120cyclictest991850irq/53-eth0-rx-21:43:4011
26126992115cyclictest0-21swapper/920:21:2711
2612699211cyclictest0-21swapper/900:38:1211
2608699210cyclictest0-21swapper/020:16:300
2612699200cyclictest0-21swapper/923:42:0211
2612799192cyclictest991850irq/53-eth0-rx-23:21:442
2612799192cyclictest991850irq/53-eth0-rx-23:21:432
2612799192cyclictest991850irq/53-eth0-rx-21:41:392
2612699192cyclictest0-21swapper/923:52:1611
2612699192cyclictest0-21swapper/922:55:1211
2612699192cyclictest0-21swapper/922:55:1211
26122991916cyclictest26049-21qemu-kvm22:08:397
991850180irq/53-eth0-rx-26050-21qemu-kvm22:09:148
26127991817cyclictest0-21swapper/1023:45:072
26127991817cyclictest0-21swapper/1023:35:362
26127991817cyclictest0-21swapper/1022:17:132
26127991817cyclictest0-21swapper/1021:37:372
26127991817cyclictest0-21swapper/1019:26:102
26127991817cyclictest0-21swapper/1000:08:562
26127991816cyclictest3966-21diskstats21:50:132
26127991816cyclictest31043-21ssh23:57:182
26127991816cyclictest28630-21kworker/10:121:30:462
26127991816cyclictest12583-21munin-node22:50:102
2612799181cyclictest991950irq/54-eth0-tx-23:41:522
2612799181cyclictest991950irq/54-eth0-tx-23:07:182
2612799181cyclictest991950irq/54-eth0-tx-21:22:442
2612799181cyclictest991950irq/54-eth0-tx-21:15:222
2612799181cyclictest991850irq/53-eth0-rx-23:26:222
2612799181cyclictest991850irq/53-eth0-rx-23:15:072
2612799181cyclictest991850irq/53-eth0-rx-23:10:342
2612799181cyclictest991850irq/53-eth0-rx-23:10:332
2612799181cyclictest991850irq/53-eth0-rx-22:46:362
2612799181cyclictest991850irq/53-eth0-rx-22:35:262
2612799181cyclictest991850irq/53-eth0-rx-22:32:482
2612799181cyclictest991850irq/53-eth0-rx-22:14:232
2612799181cyclictest991850irq/53-eth0-rx-22:09:202
2612799181cyclictest991850irq/53-eth0-rx-21:58:532
2612799181cyclictest991850irq/53-eth0-rx-21:45:402
2612799181cyclictest991850irq/53-eth0-rx-21:28:192
2612799181cyclictest991850irq/53-eth0-rx-00:25:412
2612799181cyclictest170632chrt22:26:072
2612799180cyclictest204502sleep1019:44:112
2612699181cyclictest0-21swapper/923:31:3811
2612699181cyclictest0-21swapper/921:57:3711
2612699181cyclictest0-21swapper/921:39:3111
2612699181cyclictest0-21swapper/900:13:2011
2612599185cyclictest0-21swapper/822:20:0010
26124991816cyclictest6382-21smbd20:08:399
26086991817cyclictest991850irq/53-eth0-rx-20:21:220
26128991716cyclictest0-21swapper/1120:26:063
26127991716cyclictest0-21swapper/1022:55:302
26127991716cyclictest0-21swapper/1022:55:302
26127991716cyclictest0-21swapper/1020:51:592
26127991716cyclictest0-21swapper/1020:15:082
2612799170cyclictest991850irq/53-eth0-rx-23:50:012
2612799170cyclictest991850irq/53-eth0-rx-23:30:032
2612799170cyclictest991850irq/53-eth0-rx-22:20:062
2612799170cyclictest991850irq/53-eth0-rx-22:00:402
2612799170cyclictest991850irq/53-eth0-rx-21:10:162
2612799170cyclictest991850irq/53-eth0-rx-20:25:162
2612799170cyclictest991850irq/53-eth0-rx-19:11:252
2612799170cyclictest991850irq/53-eth0-rx-00:30:102
2612799170cyclictest991850irq/53-eth0-rx-00:20:032
2612799170cyclictest991850irq/53-eth0-rx-00:15:232
2612799170cyclictest6622sleep1000:00:072
2612799170cyclictest62592chrt20:07:392
2612799170cyclictest325602sleep1020:45:082
2612799170cyclictest321902sleep1022:40:092
2612799170cyclictest319302sleep1020:43:322
2612799170cyclictest319302sleep1020:43:312
2612799170cyclictest283402sleep1019:55:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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